PUNCTURE SUPPORT DEVICE
A puncture support device includes a display unit, a puncture target setting unit, a puncturable region setting unit, a puncture route extraction unit, a safety degree calculation unit, and an insertion point candidate region display control unit. The puncture target setting unit is configured to set a puncture target in a acquired volume data. The puncturable region setting unit is configured to set a puncturable region on a body surface image. The puncture route extraction unit is configured to extract a puncture route from the set puncturable region on the body surface image to the puncture target. The safety degree calculation unit is configured to calculate a safety degree of the extracted puncture route. The insertion point candidate region display control unit is configured to divide the puncturable region into groups based on the calculated safety degree, and display the divided region on the display unit.
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This application is a Continuation Application of No. PCT/JP2013/080283, filed on Nov. 8, 2013, and the PCT application is based upon and claims the benefit of priority from Japanese Patent Application No. 2012-247702, filed on Nov. 9, 2012, the entire contents of which are incorporated herein by reference.
FIELDEmbodiments of the present invention relate to a puncture support device.
BACKGROUNDIn recent years, treatment by puncture has been often performed. The puncture refers to externally inserting an injection needle (puncture needle) into the blood vessel, the inside of the body cavity, or the internal organ. The treatment by puncture is performed to draw out a body fluid or pus accumulated in the body of a patient, or inject a drug. The puncture is also used to collect tissue from the inside of the body of the patient. Widely performed treatment at present is such that an operator manually inserts a puncture needle into the body of a patient while observing a real-time image of the inside of the body of the patient taken using an ultrasonic diagnostic device.
A detailed treatment method using puncture (puncture treatment for hepatocellular cancer) will be described. Presently known treatment methods for non-progressive hepatocellular cancer include surgical hepatectomy and local treatment.
The surgical hepatectomy is generally applied to a patient with good liver function, and medical treatment is selected for a patient with bad liver function. In the hepatectomy, a resection volume and invasion on the liver depend on the size and site of the tumor. The liver has a high capability of regeneration, and with sufficient liver reserve that indicates the function of the liver itself, nearly 80% of the entire liver can be resected, and the liver returns to its original size in about one year due to the capability of regeneration of the liver. However, with bad liver function, the liver cannot regenerate after the hepatectomy, and may be exhausted to result in liver failure.
On the other hand, the local treatment mainly includes percutaneous ethanol injection therapy by puncturing hepatocellular cancer and injecting ethanol to destroy cancer tissue, and radiofrequency thermocoagulation by applying radiofrequency radiation to destroy cancer tissue.
A large amount of blood flows in the liver, and if the puncture damages a main blood vessel, normal liver tissue other than the hepatocellular cancer that the blood vessel nourishes may be damaged. Also, when the hepatocellular cancer is located on the liver surface, the radiofrequency thermocoagulation also transmits heat to the diaphragm or pleura in contact with the liver, which may cause heat damage or thereby complications. Thus, for the local treatment, planning and implementation of a safe puncture route is very significant.
An image processing display device is disclosed in which a sectional image of a target including a puncture target is rotationally displayed around the puncture target in a three-dimensional image including the puncture target in treatment by puncture. In this image processing display device, an operator can check whether a puncture route does not include a target to be protected such as a blood vessel while changing sectional images of a subject to be the target.
Conventional puncture planning has an object to specify a route to safely reach a predetermined puncture target. However, it cannot be said that there is only one route to safely reach the predetermined puncture target, but actually, there may be a plurality of candidate routes.
Also, in actual puncture, the operator specifies an insertion point of a puncture needle in a puncture route determined by the puncture planning on the body surface of the subject.
However, by the puncture planning, the puncture route is set on a sectional image, and it is difficult for the operator to find the insertion point of the puncture needle on the body surface.
Specifically, in the conventional puncture planning, only one puncture route can be specified although there are a plurality of puncture routes for safely puncturing a puncture target, and also the puncture route can be set only on the sectional image including the puncture target. Thus, it is difficult for the operator to find an optimum insertion point of the puncture needle.
A puncture support device according to this embodiment includes: a display unit; a volume data acquisition unit configured to acquire three-dimensional volume data; a puncture target setting unit configured to set a puncture target in the acquired volume data; a puncturable region setting unit configured to set a puncturable region on a body surface image extending from the body surface to the set puncture target in the acquired volume data; a puncture route extraction unit configured to extract a puncture route from the set puncturable region on the body surface image to the puncture target; a safety degree calculation unit configured to calculate a safety degree of the extracted puncture route; and a insertion point candidate region display control unit configured to divide the puncturable region into groups based on the calculated safety degree, set a candidate region of a puncture insertion point for puncturing the puncture target in a puncturable region belonging to a predetermined group, and display the candidate region on the display unit.
Thus, the puncture support device according to this embodiment can display candidate regions of a plurality of puncture routes for safely puncturing the puncture target, and display the candidate region of the puncture insertion point on the body surface image.
First EmbodimentNow, a workstation (puncture support device) 300 according to a first embodiment will be described with reference to the drawings.
As shown in
The modality 100 refers to a medical system used for classifying devices for imaging a subject (imaging devices). For example, the modality 100 includes an X-ray CT (Computed Tomography) device, an MRI (Magnetic Resonance Imaging) device, an ultrasonic diagnostic device, or the like. The X-ray CT device is a tomography device for scanning an object with radiation or the like and processing with a computer. The MRI device is a device for taking an image of the inside of the body of a subject using magnetic fields and radio waves. The ultrasonic diagnostic device is an image diagnostic device that applies ultrasonic waves to a subject and visualizes echoes thereof. In this embodiment, any of the devices may be applied as the modality 100 as long as they can image three-dimensional volume data.
The image server 200 is an image management server that constitutes a medical image management system (PACS: Picture Archiving and Communication System), and stores, browses, and manages three-dimensional volume data acquired by the modality 100 imaging a subject (patient).
The workstation (puncture support device) 300 is a device for performing computer processing of three-dimensional volume data acquired by the modality 100 imaging the subject or three-dimensional volume data stored in the image server 200 to visualize a three-dimensional display or perform a quantitative analysis. The workstation 300 according to this embodiment includes a medical image processing device. Details of the workstation 300 according to this embodiment will be described later.
The ultrasonic diagnostic device 400 images a position of an affected area of the subject or a puncture needle acquired by an ultrasonic probe in puncture, and displays the imaged site. In this embodiment, the ultrasonic diagnostic device 400 is adopted as a device for puncture for description, but an X-ray CT device or an MRI device may be used as long as they can be used for puncture.
The network 500 interconnects devices that are connected to the puncture system 600.
Next, the configuration of the workstation 300 according to the first embodiment will be described in detail.
As shown in
The volume data acquisition unit 310 acquires three-dimensional volume data imaged by the modality 100 and stored in the image server 200 (
The puncture target setting unit 312 sets a puncture target in the acquired volume data. When the puncture target setting unit 312 sets the puncture target in the volume data, the puncture target setting unit 312 stores the volume data with the set puncture target in the volume data storage unit 330.
The puncture target setting unit 312 sets a puncture target in such a manner that, as an example, a three-dimensional reconfiguration unit (not shown) reconfigures volume data as voxel data suitable for three-dimensional image processing, and then reconfigures the data as a volume rendering image. However, when a puncture target can be extracted from the volume data by software, the puncture target may be automatically set.
The puncturable region setting unit 314 sets a puncturable region on a body surface image extending from the body surface to the set puncture target in the acquired volume data. For example, the puncturable region setting unit 314 can set a puncturable region on the body surface image from a puncture needle reachable range with a puncturable depth of a puncture needle to be used being a radius around the set puncture target in the acquired volume data. When the puncturable region setting unit 314 sets the puncturable region in the volume data, the puncturable region setting unit 314 stores the volume data with the set puncturable region in the volume data storage unit 330.
The protection target setting unit 316 can set a protection target indicating a region to be protected to a region in the puncture needle reachable range of the subject. For example, the protection target setting unit 316 can display three-dimensional volume data in a volume rendering image, and set the blood vessel or the diaphragm as a protection target. Also, in the case where the blood vessel or the diaphragm can be extracted from the three-dimensional volume data by software or the like, the protection target may be automatically set.
The non-puncturable region setting unit 318 can set a non-puncturable region indicating a region in which puncture cannot be performed to a region in the puncture needle reachable range of the subject. For example, the non-puncturable region setting unit 318 displays three-dimensional volume data in a volume rendering image to set a bone region to the non-puncturable region. Also, in the case where the bone region can be extracted from the three-dimensional volume data by software, the non-puncturable region may be automatically set.
The protection target setting unit 316 and the non-puncturable region setting unit 318 are optional components, and can be set at user's request. Thus, there is no need to always set both the protection target setting unit 316 and the non-puncturable region setting unit 318, but only either of them may be set. When the protection target setting unit 316 and the non-puncturable region setting unit 318 set the protection target or the non-puncturable region, the protection target setting unit 316 and the non-puncturable region setting unit 318 store volume data with the set protection target or non-puncturable region in the volume data storage unit 330.
The puncture route extraction unit 319 extracts a puncture route from the set puncturable region on the body surface image to the puncture target. For example, in the case where the protection target setting unit 316 sets the protection target, the puncture route extraction unit 319 extracts a puncture route from the puncturable region on the body surface image to the puncture target based on a region in a first puncture needle reachable range with the protection target being removed from the region in the puncture needle reachable range.
Also, for example, in the case where the non-puncturable region setting unit 318 sets the non-puncturable region, the puncture route extraction unit 319 extracts a puncture route from the puncturable region on the body surface image to the puncture target based on a region in a second puncture needle reachable range with the non-puncturable region being removed from the region in the puncture needle reachable range. The puncture route extraction unit 319 stores the extracted puncture route in the volume data storage unit 330.
In the case where both the protection target and the non-puncturable region are set, the puncture route extraction unit 319 extracts a puncture route from the puncturable region on the body surface image to the puncture target based on a region in a puncture needle reachable range with the protection target and the non-puncturable region being removed from the region in the puncture needle reachable range.
The safety degree calculation unit 320 calculates a safety degree of the extracted puncture route. For example, the safety degree calculation unit 320 calculates a safety degree based on a positional relationship between each puncture route in a puncture route group and the protection target, the puncture route group being a set of puncture routes connecting the set puncturable region on the body surface image to the puncture target. When the safety degree calculation unit 320 calculates the safety degree of each puncture route, the safety degree calculation unit 320 stores the puncture route and the safety degree thereof in the volume data storage unit 330.
The insertion point candidate region display control unit 322 divides the puncturable regions into groups based on the calculated safety degrees, sets a candidate region of a puncture insertion point for puncturing the puncture target in a puncturable region belonging to a predetermined group, and displays the candidate region on the display unit 346 described later. For example, the insertion point candidate region display control unit 322 displays a candidate region of a puncture insertion point on the display unit 346 based on at least either an area of the puncturable region and a distance of the puncture route with a center of gravity of the puncturable region belonging to the predetermined group being the puncture insertion point. The insertion point candidate region display control unit 322 stores the grouped puncturable regions in the volume data storage unit 330.
The volume data storage unit 330 stores the three-dimensional volume data acquired by the volume data acquisition unit 310. Every time the above described setting is performed in the volume data acquired by the volume data acquisition unit 310, the set volume data and the contents of setting are stored in the volume data storage unit 330.
Next, a configuration of hardware of the workstation 300 according to this embodiment will be described.
As shown in
The CPU 341 loads various programs stored in the ROM 342 to the RAM 343 and expands the programs, and thus can realize functions of the various programs. The RAM 343 is used as a work area (working memory). The ROM 342 stores various programs. The various programs stored in the ROM 342 include a program for realizing the functions of the workstation 300 shown in
The network interface unit 344 receives the three-dimensional volume data stored in the storage unit of the image server 200, or receives the volume data from the ultrasonic diagnostic device 400 via the network 500 (
The operation unit 345 includes an input device or the like that sets a puncture target, a protection target, or a non-puncturable region in the three-dimensional volume data stored in the volume data storage unit 330 in the workstation 300, or inputs, edits, and registers the programs. Specifically, the operation unit 345 includes a pointing device such as a keyboard or a mouse.
The display unit 346 displays the three-dimensional volume data acquired from the image server 200, or a volume rendering image in setting a puncture target, a protection target, or a non-puncturable region. The display unit 346 includes a liquid crystal display or a monitor.
The storage unit 347 constitutes a storage memory, and includes a RAM or a hard disk. In this embodiment, the storage unit 347 constitutes, for example, the volume data storage unit 330 that stores the three-dimensional volume data.
The internal bus 348 is connected to each component so that the CPU 341 controls the entire workstation 300.
As such, in this embodiment, the storage unit 347 constitutes the volume data storage unit 330, and executes the programs stored in the ROM 342, thereby realizing the functions of the workstation 300 shown in
Next, an operation of a puncture insertion point display process by the workstation 300 according to the first embodiment will be described.
First in step S101, the volume data acquisition unit 310 acquires three-dimensional volume data from the image server 200 via the network 500. The volume data acquisition unit 310 stores the acquired three-dimensional volume data in the volume data storage unit 330.
In step S103, the puncture target setting unit 312 sets a puncture target in the acquired volume data.
In step S105, the puncturable region setting unit 314 sets a puncturable region on the body surface image from a puncture needle reachable range with a puncturable depth of a puncture needle to be used being a radius around a set puncture target.
The axial sectional image shown in
In the examples in
As an example, a method of extracting a puncture route from the set puncturable region ER on the body surface image to the puncture target OB will be described.
In step S107 (
In step S109, the non-puncturable region setting unit 318 can set a non-puncturable region indicating a region in which puncture cannot be performed to the region in the puncture needle reachable range RN of the subject P.
In step S111, the puncture route extraction unit 319 extracts a puncture route from the puncturable region ER on the body surface image to the puncture target OB.
The puncture routes extracted by the puncture route extraction unit 319 in the case where the protection target and the non-puncturable region are set as described in steps S107 and S109 will be described with reference to the drawings.
As shown in
Thus, the puncture route extraction unit 319 extracts a substantially linear safe puncture route from the puncturable region ER to the puncture target OB without any interruption in the puncture route such as the protection target PO or the bone region BO in the region in the puncture needle reachable range RN of the subject P.
In step S113 (
Specifically, the safety degree calculation unit 320 calculates a safety degree based on a positional relationship between each puncture route of a puncture route group and a protection target, the puncture route group being a set of puncture routes connecting the puncturable region ER on the body surface image to the puncture target OB.
As an example, a safety degree calculation method for the safety degree calculation unit 320 to calculate a safety degree of the puncture route from the puncturable region ER to the puncture target OB will be described.
As shown in
In
In the case in
The calculation method of the safety degree is not limited to this. For example, a general safety degree may be calculated from the safety degrees of all the protection targets (PO1 to PO4). Specifically, the reciprocal of the safety degree of each protection target is taken to obtain an unsafety degree of each protection target, and calculate the sum of the unsafety degrees. Then, the reciprocal of the sum of the unsafety degrees is taken to obtain a general safety degree.
When the general safety degree is calculated, the threshold may be used for determination. When the safety degree is calculated, the distance may be directly applied to calculate the safety degree. The distance or the threshold may be weighted as appropriate.
For example, the blood vessel has a higher safety degree than the diaphragm or the heart, and thus the distance is multiplied by a safety degree calculation coefficient larger than one so that the safety degree of the blood vessel is relatively higher than the safety degree of the diaphragm or the heart.
In this case, the diaphragm or the heart has a lower safety degree than the blood vessel, and thus the distance is multiplied by a safety degree coefficient smaller than the safety degree calculation coefficient of the blood vessel so that the safety degree of the diaphragm or the heart is relatively lower than the safety degree of the blood vessel.
In
Thus, in
In this embodiment, to calculate the safety degree, the safety degree calculation unit 320 may use the unsafety degree as the reciprocal of the safety degree to indicate the safety degree of the puncture route.
In step S115 (
As shown in
In the example in
In step S117 (
As shown in
When the area of the puncturable region is relatively large, it is considered that the risk of damaging the protection target is low even with an error in the puncture insertion point between puncture planning and actual puncture. Also, when the distance of the puncture route from the puncture insertion point to the puncture target is relatively short, the depth of the puncture is small, and it is considered that burden on both the operator and the subject is reduced.
Thus, for example, adjacent points are connected of the set of points in the group of the high safety degree region AA in the puncturable region ER, and divided into a plurality of clusters. The insertion point candidate region display control unit 322 handles each cluster as a puncture insertion candidate region (for example, CA1, CA2), and calculates an area of each puncture insertion candidate region, and a distance from the center of gravity of each puncture insertion candidate region to the puncture target OB.
Then, the insertion point candidate region display control unit 322 assigns a high score when the calculated area of the puncture insertion candidate region is relatively large, while assigns a low score when the area of the puncture insertion candidate region is relatively small. The insertion point candidate region display control unit 322 assigns a high score when the distance from the center of gravity of the puncture insertion candidate region to the puncture target is relatively short, while assigns a low score when the distance from the center of gravity of the puncture insertion candidate region to the puncture target is relatively long.
As such, the insertion point candidate region display control unit 322 can provide the operator the puncture insertion candidate region in the order of scores based on at least either the area of each puncture insertion candidate region or the distance from the center of gravity of each puncture insertion candidate region to the puncture target.
In
As described above, the workstation 300 according to this embodiment acquires the three-dimensional volume data from the image server 200 via the network 500, and sets the puncture target OB in the volume data. The workstation 300 can set the protection target PO and the non-puncturable region (bone region BO) in the volume data, and extract the puncture route from the puncturable region ER to the puncture target OB. The workstation 300 calculates the safety degree of the extracted puncture route, divides the puncturable region into groups based on the calculated safety degrees, and displays the candidate region of the puncture insertion point for puncturing the puncture target in the puncturable region belonging to the predetermined group.
As such, the workstation 300 according to this embodiment can display the candidate region of the puncture insertion point (that is, the puncture insertion candidate region) in the puncturable region belonging to the predetermined group. Thus, the operator can easily have a look at the candidate regions of the plurality of puncture insertion points with a high safety degree on the body surface image, and can select a puncture insertion point for the safest puncture among the candidate regions of the plurality of puncture insertion points.
In the workstation 300 according to this embodiment, the protection target setting unit 316 and the non-puncturable region setting unit 318 set the protection target PO and the non-puncturable region (bone region BO), and then the safety degree calculation unit 320 calculates the safety degree, but this embodiment is not limited to this.
For example, in the case where the protection target setting unit 316 and the non-puncturable region setting unit 318 do not set the protection target PO nor the bone region BO, the puncture route extraction unit 319 may extract the puncture route from the puncturable region ER on the body surface image to the puncture target OB, and the safety degree calculation unit 320 may calculate the safety degree depending on only the distance to the puncture target OB in the extracted puncture route.
Second EmbodimentIn the first embodiment described above, the insertion point candidate region display control unit 322 in the workstation 300 according to this embodiment displays the candidate region of the puncture insertion point (that is, the puncture insertion candidate region) on the body surface image based on at least either the area of the puncturable region belonging to the group of the high safety degree region AA or the distance of the puncture route.
In the second embodiment, in addition to the first embodiment, an operator uses an operation unit 345 (virtual puncture accepting unit) to designate a candidate region of a puncture insertion point displayed on a body surface image, and then puncture support information relating to the candidate region of the puncture insertion point is displayed on a display unit 346.
The puncture support information includes information relating to the puncture insertion point or the puncture insertion candidate region, and refers to information in which a puncture route from a puncture insertion point to a puncture target or a sectional image are displayed on an image other than the body surface image (for example,
As shown in
In this case, an assumed virtual puncture route may be displayed by graphic display, and the protection target PO may be highlighted. The sectional image in the second embodiment is not restrictively displayed in a volume rendering image as in
As such, the operator may easily visually check the puncture insertion point SP in the puncture insertion candidate region CA3 displayed on the body surface image, and also the sectional image in puncture from the puncture insertion point SP. This allows an optimum puncture insertion point or puncture insertion candidate region to be selected and determined.
Third EmbodimentIn the first embodiment described above, the insertion point candidate region display control unit 322 in the workstation 300 displays the candidate region of the puncture insertion point (that is, the puncture insertion candidate region) for puncturing the puncture target in the puncturable region belonging to the predetermined group. Also, in the second embodiment, the puncture support information (for example, sectional image) corresponding to the puncture insertion point SP is displayed.
In the third embodiment, in addition to the first and second embodiments, a projector (projection device) is further provided that projects, on a subject P, a puncturable region ER on a body surface image. Thus, an insertion point candidate region display control unit 322 (
As shown in
The projector 410 projects, on the subject P, for example, a puncturable region on the body surface image or three-dimensional volume data or a sectional image displayed on a display unit 346 in the workstation 300.
In
The insertion direction guide SG refers to a projected insertion direction into the puncture insertion point SP, and a puncture target guide OG refers to a puncture target OB (
In the third embodiment, puncture insertion candidate regions CA1, CA2 (
Thus, for example, a misalignment of a non-puncturable region XX due to the costa from the actual costa may be visually corrected. A feature such as the epigastric fossa as an example of the xiphisternum may be specified in three-dimensional volume data for puncture planning, and the feature may be projected on the body surface to visually correct the misalignment.
In the third embodiment, the projected information is not limited to the above, but for example, a depth from the body surface to the puncture target OB may be represented by a length, or an insertion angle may be projected on the body surface. In this case, the length and the insertion angle may be represented by numerical values, or the length may be artificially projected, or the insertion angle may be artificially projected.
In the first to third embodiments, for example, in the case where the puncture insertion point SP is determined from the plurality of puncture insertion pointe, and the ultrasonic diagnostic device 400 can be automatically placed on the subject P from the positional information on the puncture insertion point SP and the puncture target OB, the ultrasonic diagnostic device 400 may be automatically placed.
Although a couple of embodiments of the invention are explained, these embodiments are exemplary only and it is not intended that the scope of the invention is limited by the embodiments. These embodiments can be put into practice in other various forms, and can be variously omitted, replaced or changed within the scope of the invention. The embodiments and their modifications are included in the scope and the coverage of the invention, and similarly in the equivalents to the claimed invention.
Also, in the embodiments of the present invention, the steps of flow charts show example processes that are performed in time-series in the order described, but they may also include processes that can be performed in parallel or independently rather than being performed in time-series.
Claims
1. A puncture support device comprising:
- a display unit;
- a volume data acquisition unit configured to acquire three-dimensional volume data;
- a puncture target setting unit configured to set a puncture target in the acquired volume data;
- a puncturable region setting unit configured to set a puncturable region on a body surface image extending from the body surface to the set puncture target in the acquired volume data;
- a puncture route extraction unit configured to extract a puncture route from the set puncturable region on the body surface image to the puncture target;
- a safety degree calculation unit configured to calculate a safety degree of the extracted puncture route; and
- a insertion point candidate region display control unit configured to divide the puncturable region into groups based on the calculated safety degree, set a candidate region of a puncture insertion point for puncturing the puncture target in a puncturable region belonging to a predetermined group, and display the candidate region on the display unit.
2. The puncture support device according to claim 1, wherein the puncturable region setting unit sets a puncturable region on the body surface image from a puncture needle reachable range with a puncturable depth of a puncture needle to be used being a radius around the set puncture target in the acquired volume data.
3. The puncture support device according to claim 2, further comprising a protection target setting unit configured to set a protection target indicating a region to be protected to a region in the puncture needle reachable range,
- wherein, with the protection target being set in the region in the puncture needle reachable range, the puncture route extraction unit extracts the puncture route from the puncturable region on the body surface image to the puncture target based on a region in a first puncture needle reachable range with the protection target being removed from the region in the puncture needle reachable range, and
- the safety degree calculation unit calculates a safety degree of the extracted puncture route.
4. The puncture support device according to claim 2, further comprising a non-puncturable region setting unit configured to set a non-puncturable region indicating a region in which puncture cannot be performed to a region in the puncture needle reachable range,
- wherein, with the non-puncturable region being set in the region in the puncture needle reachable range, the puncture route extraction unit extracts a puncture route from the puncturable region on the body surface image to the puncture target based on a region in a second puncture needle reachable range with the non-puncturable region being removed from the region in the puncture needle reachable range, and
- the safety degree calculation unit calculates a safety degree of the extracted puncture route.
5. The puncture support device according to claim 2, wherein the safety degree calculation unit calculates the safety degree based on a positional relationship between a puncture route and the protection target, the puncture route connecting the set puncturable region on the body surface image to the puncture target.
6. The puncture support device according to claim 1, wherein the insertion point candidate region display control unit displays a candidate region of the puncture insertion point based on at least either an area of the puncturable region and a distance of the puncture route with a center of gravity of the puncturable region belonging to the predetermined group being the puncture insertion point.
7. The puncture support device according to claim 1, wherein the safety degree calculation unit calculates the safety degree based on a distance between the puncture route and the protection target.
8. The puncture support device according to claim 1, further comprising virtual puncture accepting unit configured to accept an input of a virtual puncture insertion point for virtual puncture in the candidate region of the displayed puncture insertion point,
- wherein when the insertion point candidate region display control unit accepts the input of the virtual puncture insertion point, the insertion point candidate region display control unit displays puncture support information associated with the virtual puncture insertion point on the display unit.
9. The puncture support device according to claim 1, further comprising a projection device that projects, on a subject, the puncturable region on the body surface image,
- wherein the insertion point candidate region display control unit uses the projection device to project the candidate region of the puncture insertion point on the body surface of the subject.
Type: Application
Filed: Jun 18, 2014
Publication Date: Oct 9, 2014
Applicants: Kabushiki Kaisha Toshiba (Minato-ku), Toshiba Medical Systems Corporation (Otawara-Shi)
Inventor: Kota AOYAGI (Nasushiobara-Shi)
Application Number: 14/308,168
International Classification: A61B 19/00 (20060101); A61B 17/34 (20060101);