Abstract: An object of the present invention is to provide a method for preparing ambrein, which can easily and efficiently obtain the ambrein. The object can be solved by a mutated tetraprenyl-?-curcumene cyclase wherein (1) a 4th amino acid residue of a DXDD motif, aspartic acid, is substituted with an amino acid other than aspartic acid, and (2) an amino acid adjacent to the N-terminus of a (A/S/G)RX(H/N)XXP motif is substituted with an amino acid other than tyrosine, or a 4th amino acid of the GXGX(G/A/P) motif is substituted with an amino acid other than leucine.

Abstract: Devices and methods are provided for analyzing images from a magnetic resonance (MR) system. The device includes at least one hardware processor coupled with a storage system accessible to the at least one hardware processor. The device further includes a display in communication with the at least one hardware processor. The device receives a plurality of non-contrast MR images in a region of interest (ROI). The device obtains blood flow signals from the plurality of non-contrast MR images. The device identifies an abnormal segment by analyzing the blood flow signals. The device displays the non-contrast MR images by a highlighted segment in at least one of the non-contrast MR images to indicate the abnormal segment on the display.

Abstract: A magnetic resonance imaging (MRI) apparatus according to an exemplary embodiment includes a sequence controller and a data processor. The sequence controller executes a pulse sequence using a combination of multiple types of labeling methods to acquire magnetic resonance signals. The data processor generates multiple types of labeled images based on the magnetic resonance signals.

Abstract: A magnetic resonance imaging apparatus according to an embodiment includes sequence control circuitry and processing circuitry. The sequence control circuitry performs first data acquisition in a full k-space and performs a plurality of second data acquisition in partial k-spaces, each of the partial k-spaces being smaller than the entirety of the full k-space. The processing circuitry generates an image, based on data acquired from the first data acquisition and a plurality of pieces of data acquired from the plurality of second data acquisition.

Abstract: An object of the present invention is to provide a method for preparing ambrein, which can easily and efficiently obtain the ambrein. The object can be solved by a mutated tetraprenyl-?-curcumene cyclase wherein (1) a 4th amino acid residue of a DXDD motif, aspartic acid, is substituted with an amino acid other than aspartic acid, and (2) an amino acid adjacent to the N-terminus of a (A/S/G)RX(H/N)XXP motif is substituted with an amino acid other than tyrosine, or a 4th amino acid of the GXGX(G/A/P) motif is substituted with an amino acid other than leucine.

Abstract: Black blood time to inversion (BBTI) tag-on and tag-off images acquired by magnetic resonance imaging (MRI) are analyzed to produce difference magnitude 3D images as a function of time (BBTI values) representing blood perfusion in a region of interest (ROI). Perfusion data of the ROI having values which are different for normal and abnormal myocardial tissues are displayed for plural slices of a 3D image and for plural BBTI values in a single display panel.

Abstract: Provided is a method for producing ambrein, comprising reacting tetraprenyl-?-curcumene cyclase with 3-deoxyachilleol A to obtain ambrein.

Abstract: Devices and methods are provided for analyzing images from a magnetic resonance (MR) system. The device includes at least one hardware processor coupled with a storage system accessible to the at least one hardware processor. The device further includes a display in communication with the at least one hardware processor. The device receives a plurality of non-contrast MR images in a region of interest (ROI). The device obtains blood flow signals from the plurality of non-contrast MR images. The device identifies an abnormal segment by analyzing the blood flow signals. The device displays the non-contrast MR images by a highlighted segment in at least one of the non-contrast MR images to indicate the abnormal segment on the display.

Abstract: A magnetic resonance imaging apparatus according to an embodiment includes sequence control circuitry and processing circuitry. The sequence control circuitry performs first data acquisition in a full k-space and performs a plurality of second data acquisition in partial k-spaces, each of the partial k-spaces being smaller than the entirety of the full k-space. The processing circuitry generates an image, based on data acquired from the first data acquisition and a plurality of pieces of data acquired from the plurality of second data acquisition.

Abstract: Elicited MRI signals are processed into MR image data in conjunction (a) with use of an initial spatially-selective RF tag pulse (tag-on) and (b) without use of an initial spatially-selective NMR RF tag pulse (tag-off) in respectively corresponding data acquisition subsequences. Multi-dimensional tag-on and tag-off data acquisition subsequences are used for each of plural time-to-inversion (TI) intervals without using an injected contrast agent. Acquired image data sets are subtracted for each TI interval to produce difference values as a function of time representing blood perfusion for the ROI that differentiates between normal, ischemic and infarct tissues.

Abstract: Elicited MRI signals are processed into MR image data in conjunction (a) with use of an initial spatially-selective RF tag pulse (tag-on) and (b) without use of an initial spatially-selective NMR RF tag pulse (tag-off) in respectively corresponding data acquisition subsequences. Multi-dimensional tag-on and tag-off data acquisition subsequences are used for each of plural time-to-inversion (TI) intervals without using an injected contrast agent. Acquired image data sets are subtracted for each TI interval to produce difference values as a function of time representing blood perfusion for the ROI that differentiates between normal, ischemic and infarct tissues.

Abstract: Provided is a method for producing ambrein, comprising reacting tetraprenyl-?-curcumene cyclase with 3-deoxyachilleol A to obtain ambrein.

Abstract: A magnetic resonance imaging apparatus includes: a sequence controlling unit that, by controlling an execution of a pulse sequence, acquires magnetic resonance (MR) signals corresponding to a plurality of channels in the pulse sequence executed as a series, the MR signals being configured to be arranged into a first region of a k-space at first intervals and into a second region larger than the first region at second intervals larger than the first intervals; an arranging unit that arranges the MR signals corresponding to the channels into the k-space as k-space data; and an image generating unit that generates first-interval k-space data corresponding to the channels based on the second-interval k-space data acquired by executing the pulse sequence and generates a magnetic resonance image based on the generated first-interval k-space data, the first-interval k-space data acquired by executing the pulse sequence, and sensitivity distributions corresponding to the channels.

Abstract: Elicited MRI signals are processed into MR image data in conjunction (a) with use of an initial spatially-selective RF tag pulse (tag-on) and (b) without use of an initial spatially-selective NMR RF tag pulse (tag-off) in respectively corresponding data acquisition subsequences. Multi-dimensional tag-on and tag-off data acquisition subsequences are used for each of plural time-to-inversion (TI) intervals without using an injected contrast agent. Acquired image data sets are subtracted for each TI interval to produce difference values as a function of time representing blood perfusion for the ROI that differentiates between normal, ischemic and infarct tissues.

Abstract: A magnetic resonance imaging (MRI) system acquires MRI data within one patient breath-hold sufficient to generate (a) at least one tag-off first type non-contrast cardiac perfusion image using a data acquisition sub-sequence including a non-selective IR (inversion recovery) pulse and (b) at least one tag-on second type non-contrast cardiac perfusion image using a data acquisition sub-sequence including a non-selective IR pulse and a spatially selective IR pulse. A set of registered tag-on and tag-off images are differentially combined to produce an accurate cardiac perfusion image.

Abstract: A magnetic resonance imaging (MRI) apparatus according to an exemplary embodiment includes a sequence controller and a data processor. The sequence controller executes a pulse sequence using a combination of multiple types of labeling methods to acquire magnetic resonance signals. The data processor generates multiple types of labeled images based on the magnetic resonance signals.

Abstract: According to one embodiment, an electronic device of the embodiment includes a pair of racks, a box-shaped main body having a front face, a first side face which intersects with the front face, and a second side face which is opposed to the first side face, a first fixing portion which is fixed to the first side face and also to one of the racks, a second fixing portion which is fixed to the second side face and also to the other one of the racks, and a module which is mounted in the first fixing portion.

Abstract: Black blood time to inversion (BBTI) tag-on and tag-off images acquired by magnetic resonance imaging (MRI) are analyzed to produce difference magnitude 3D images as a function of time (BBTI values) representing blood perfusion in a region of interest (ROI). Perfusion data of the ROI having values which are different for normal and abnormal myocardial tissues are displayed for plural slices of a 3D image and for plural BBTI values in a single display panel.

Abstract: Elicited MRI signals are processed into MR image data in conjunction (a) with use of an initial spatially-selective RF tag pulse (tag-on) and (b) without use of an initial spatially-selective NMR RF tag pulse (tag-off) in respectively corresponding data acquisition subsequences. Multi-dimensional tag-on and tag-off data acquisition subsequences are used for each of plural time-to-inversion (TI) intervals without using an injected contrast agent. Acquired image data sets are subtracted for each TI interval to produce difference values as a function of time representing blood perfusion for the ROI that differentiates between normal, ischemic and infarct tissues.

Abstract: A magnetic resonance imaging (MRI) system acquires MRI data within one patient breath-hold sufficient to generate (a) at least one tag-off first type non-contrast cardiac perfusion image using a data acquisition sub-sequence including a non-selective IR (inversion recovery) pulse and (b) at least one tag-on second type non-contrast cardiac perfusion image using a data acquisition sub-sequence including a non-selective IR pulse and a spatially selective IR pulse. A set of registered tag-on and tag-off images are differentially combined to produce an accurate cardiac perfusion image.