Abstract: Balloon catheter (22) having a coating comprises a primer layer (24) comprising at least one or more substantially hydrophilic compounds, a first layer (26) comprising an inclusion compound; and a second layer (28) comprising a mixture of a hydrophobic polymer, an active therapeutic agent and the inclusion compound.

Abstract: A medical catheter and a three-dimensional magnetic positioning system. The medical catheter includes a catheter body, a first magnetic sensor and a second magnetic sensor. The catheter body includes, sequentially connected along an axis thereof, a tip section, a bending-adjustable section and a straight section. Both the first magnetic sensor and the second magnetic sensor are disposed on the tip section. This medical catheter can be more accurately located and controlled.

Abstract: The present disclosure relates to an image processing method, a storage medium and a mapping system. An imageological image including a plurality of tomographic images is acquired. A three-dimensional reconstruction is performed according to the plurality of tomographic images to obtain a three-dimensional image model. The three-dimensional image model includes a three-dimensional myocardial fibrosis region image. A three-dimensional electroanatomic model including a three-dimensional abnormal myocardial tissue image is acquired. Since there is a certain correlation between an abnormal myocardial tissue region in the three-dimensional electroanatomic model and myocardial fibrosis, the three-dimensional image model and the three-dimensional electroanatomic model are registered, and an overlapping part of the three-dimensional myocardial fibrosis region image and the three-dimensional abnormal myocardial tissue image is determined as the location of a lesion.

Abstract: The present application relates to a pet safety management method and system, computer equipment and a storage medium. The method includes: acquiring a first video comprising a target pet and a target object, the target object being an active object except the target pet; analyzing the first video to determine a first state of the target pet and a second state of the target object; acquiring a surrounding environment video of the target pet if the target pet is determined to be in an initial dangerous state according to the first state and the second state; and analyzing the surrounding environment, determining that the target pet is in a dangerous state if the surrounding environment is an interference-free environment, and controlling an warning device carried by the target pet to send a warning message to timely prevent a pet from being stolen.

Abstract: The present application relates to an image registration method, comprising: selecting a registration source image {pi} and a registration target image {qj}; applying a random perturbation to {pi} in accordance with a preset random perturbation control parameter ? so that it is deformed to obtain {pi?}, and obtaining a set of closest points, i.e., {gj?}, on {qj} corresponding to points on {pi?}; performing an iterative operation on {pi?} and {qj?} in accordance with a preset initial coordinate transformation H0 to obtain a coordinate transformation {H1}, 0<I<=L, between {pi?} and {qi?}, and calculating an average distance {E1} corresponding to the coordinate transformation {H1} in accordance with the coordinate transformation {H1}; judging magnitudes of the average distance {E1} and a preset ideal average distance Ex, and terminating the registration when the average distance {E1} is smaller than or equal to the preset ideal average distance.

Abstract: The present application relates to an image registration method, comprising: selecting a registration source image {p,} and a registration target image {qj}; applying a random perturbation to {pi} in accordance with a preset random perturbation control parameter ? so that it is deformed to obtain {pi?}, and obtaining a set of closest points, i.e., {qj?}, on {qj} corresponding to points on {pi?}; performing an iterative operation on {pi} and {qj?} in accordance with a preset initial coordinate transformation H0 to obtain a coordinate transformation {Hl}, 0<l<L, between {pi?} and {qj?}, and calculating an average distance {El} corresponding to the coordinate transformation {Hl} in accordance with the coordinate transformation {Hl}; judging magnitudes of the average distance {El} and a preset ideal average distance Ex, and terminating the registration when the average distance {El} is smaller than or equal to the preset ideal average distance.