16 results about "Guided intervention" patented technology

Systems and methods are provided for real-time multimodal deformable image registration for image-guided interventions. A pre-interventional three-dimensional (3D) magnetic resonance imaging (MRI) image and multiple 3D ultrasound (US) images capturing various respiratory states and poses are acquired for a patient. The MRI image is registered to each US image using a trained MR-US deformation model, producing deformed MRI images. During intervention, an interventional 3D US image is acquired and registered to a pre-interventional US image using a trained US-US deformation model, determining a warp field. This warp field is applied to the corresponding deformed MRI image, producing a registered 3D MRI image for visualizing annotated tissue features from the pre-interventional MRI on the live interventional US image. The disclosed approach leverages multimodal imaging and deep learning models to enhance visualization during interventions by combining superior soft tissue contrast of MRI with real-time US imaging capabilities.

Disclosed herein are systems and methods related to a novel robot for MRI guided intervention that are compatible with different MRI scanners, particularly low field scanners with apertures. The systems and methods disclosed herein may allow for precise minimally invasive procedures.

The application relates to an image registration method, an imaging device, an intraoperative guiding intervention system and a storage medium. The method is applied to the imaging device, the imaging device comprises an imaging source and a bearing assembly, the bearing assembly is provided with a first marker, and a detection object carried by the bearing assembly is provided with a second marker. The method comprises the following steps: acquiring a preoperative three-dimensional image and an intraoperative perspective view of the detection object; the intraoperative perspective view comprises an image of the first marker and an image of the second marker; determining a target height according to the first marker and the second marker and the image of the first marker and the image of the second marker, the target height being a distance between the imaging source and the detection object; and determining a target registration image according to the preoperative three-dimensional image, the intraoperative perspective view and the target height. The image registration method provided by the application can be applied to various surgical scenes without acquiring an intraoperative three-dimensional image for registration, and has higher practicability.

A method for remote intervention for a subject includes acquiring images of a region of interest in the subject using an interventional device positioned on the subject. The region of interest includes a target tissue, and the subject is located at a first site. The method further includes analyzing the acquired images using an image analysis module to identify and label the target tissue in the region of interest and transmitting the labeled images from the first site to a second site for expert review. The second site is remote from the first site. The method further includes receiving a command signal from the second site at the first site, the command signal being generated based on the expert review of the labeled images and configured to control operation of the interventional device. In some embodiments, the method may further include analyzing the acquired images to determine a path to the vessel while avoiding critical structures.

This specification discloses a novel robotic system and method for MRI-guided interventions, adapted to various MRI scanners, particularly low-field scanners with small bores. The system and method disclosed herein enable precise, minimally invasive procedures.

A multi-array transducer for ultrasound guided intervention includes a transducer head, a housing unit, and a cable. The transducer head includes a plurality of arrays. A method for real-time visualization of needle insertion in biopsy includes: providing a multi-array transducer, the multi-array transducer including a plurality of arrays; and generating a plurality of ultrasound images by using the plurality of arrays for visualizing the insertion in real time.

The embodiment of the invention relates to the technical field of instruments for removing obstruction in blood vessels, in particular to a coronary thrombolysis catheter and a coronary thrombolysis assembly suitable for an ultrasonic guided intervention technology. The catheter includes a catheter assembly disposed to enter the aorta and extend into the left ventricle. The medicine conveying pipe is arranged in the catheter assembly and is arranged to be capable of conveying thrombolytic medicine into the thrombus of the coronary artery through the catheter assembly. The balloon is arranged outside the catheter assembly and can expand after being filled with water, so that the space between the catheter assembly and the aorta is sealed, the thrombolytic medicine cannot flow out of the coronary artery, and thrombus is dissolved. The catheter assembly is configured to allow blood within the left ventricle to flow out through the catheter assembly. According to the catheter, the thrombolytic drug can stay in the coronary artery for a long time, so that the thrombolytic effect and targeting performance are improved, the thrombolytic drug conveyed to the coronary artery is prevented from leaking to the whole body through the aorta, the influence of the thrombolytic drug on the whole body blood coagulation mechanism is reduced, the risk of cerebral hemorrhage and bleeding of other visceral organs is reduced, and the safety of thrombolytic treatment is improved.

Disclosed herein are methods for determining a subject level risk of metastatic cancer involving the training and / or deployment of models to determine 1) a lymph node level risk of individual lymph node involvement and / or 2) a subject level risk of lymph node involvement. Thus, the methods can identify patients who are high or low risk for having nodal disease and optionally enable the guided intervention of cancer patients, for example, via treatment.

The invention relates to a method and system for visualizing out-of-plane marking in ultrasonic guided intervention, and the method comprises the steps: building rigid transformation between an ultrasonic image plane coordinate system and a mechanical arm world coordinate system through a calibration phantom, and selecting a target point in a real-time ultrasonic image to obtain a three-dimensional coordinate of the target point; taking the recorded imaging plane as a reference, adopting plane constraint control to enable the probe to move in a parallel plane, and projecting the stored three-dimensional mark points to the current ultrasonic image based on the updated probe attitude to realize visual display of the out-of-plane structure; the system comprises an execution unit, a control unit, a display unit and a calibration phantom, and is used for completing space registration, mark point calculation and projection superposition. According to the invention, continuous three-dimensional positioning reference can be provided while the real-time performance of two-dimensional ultrasonic imaging is maintained, and the accuracy and operation efficiency of an interventional operation are improved.

The invention relates to a registration method, an intraoperative guided intervention system and a computer readable storage medium. The method comprises the following steps: generating low-dimensional deformation data according to an initial network, and inputting the low-dimensional deformation data into a first target network model to obtain an initial deformation field; registering the first medical image and the second medical image based on the initial deformation field to obtain a registration result; and adjusting the parameters of the initial network, generating new low-dimensional deformation data according to the adjusted initial network, and returning to execute the step of inputting the low-dimensional deformation data into the first target network model until the registration result meets the registration condition. By using the registration method provided by the invention, the registration accuracy can be improved.

The invention relates to an image registration method, imaging equipment, an intraoperative guided intervention system and a storage medium, the method is applied to the imaging equipment, the imaging equipment comprises an imaging source and a bearing assembly, the bearing assembly is provided with a first marker, and a detection object borne by the bearing assembly is provided with a second marker. The method comprises the following steps: acquiring a preoperative three-dimensional image and an intraoperative perspective view of a detected object; the intraoperative perspective view comprises an image of the first marker and an image of the second marker; according to the first marker, the second marker, the image of the first marker and the image of the second marker, a target height is determined, and the target height is the distance between the imaging source and the detection object; and determining a target registration image according to the preoperative three-dimensional image, the intraoperative perspective and the target height. The image registration method provided by the invention does not need to obtain an intraoperative three-dimensional image for registration, can be suitable for various operation scenes, and has higher practicability.

A method and system for guiding renal stone removal. The method includes steps for facilitating or guiding three stages of the intervention: renal access, stone removal, and a stone-free check. This is facilitated by a method which includes three stages: an intra-operative image guidance phase for obtaining CT-based imagery of the renal area; a renal access guidance phase in which the aforementioned CT-based imagery is used to generate intervention guidance imagery to guide renal access, and a stone-free check phase in which further intra-operative CT images are acquired to check the stone-free status of the patient.

Systems and methods are provided for real-time multi-modal deformable image registration for image-guided intervention. Pre-interventional three-dimensional (3D) magnetic resonance imaging (MRI) images are acquired for a patient and a plurality of 3D ultrasound (US) images are captured for various breathing states and gestures. The MRI image is registered to each US image using the trained MR-US deformation model (1000), thereby producing a deformed MRI image. During an intervention, an interventional 3D US image is acquired and registered to a pre-interventional US image using a trained US-US deformation model (1200), thereby determining a warpage field. The warpage field is applied to a corresponding deformed MRI image, producing a registered 3D MRI image for visualizing annotated tissue features from pre-interventional MRI on a live interventional US image. The disclosed approach makes full use of multi-modal imaging and deep learning models to enhance visualization during interventions by combining the superior soft tissue contrast of MRI with real-time US imaging capabilities.

The embodiment of the invention relates to the technical field of instruments for removing intravascular obstruction, in particular to a system for applying thrombolytic medicine to coronary artery suitable for ultrasonic guided intervention technology, which comprises a medicine carrying catheter arranged on a catheter assembly, when the catheter assembly is fed into the aorta, the medicine carrying catheter enters the coronary artery through the catheter assembly, and when the catheter assembly is fed into the aorta, the medicine carrying catheter is used for applying thrombolytic medicine to the coronary artery. And the drug-loading catheter releases the drug-loading microvesicles in the coronary artery. The ultrasonic device is arranged to apply ultrasonic waves to the drug-loaded microvesicles, and the drug-loaded microvesicles are broken and release the thrombolytic drug. The catheter assembly is configured to occlude a root of the aorta such that the drug-loaded microvesicles cannot move therefrom out of the aorta. By utilizing the system, the thrombolytic drug does not flow out along with the blood flow of the aorta and is not leaked to the whole body, so that the thrombolytic drug can stay in the coronary artery for a long time, the thrombolytic effect and the targeting property are favorably improved, the influence of the thrombolytic drug on a whole body blood coagulation mechanism is reduced, and the risk of cerebral hemorrhage and other visceral hemorrhage is reduced; and the safety and the reliability of treatment are improved.

The invention relates to the technical field of digital medical treatment, in particular to a mobile terminal senile multi-course autonomous management and doctor-patient interaction data acquisition system. The system comprises a personal digital twinning module used for constructing and optimizing a calculation model capable of simulating a multi-course interaction rule based on user multi-source health data; the situation awareness and embedded intervention module is used for sensing a user situation in real time according to a risk track deduced by the model, executing seamless fusion guiding intervention and generating first-class interaction data at the same time; and the doctor-patient collaborative decision-making module is used for providing a virtual adjustment tool based on digital twinning for the doctor and compiling the decision-making scheme into executable second-class interactive data. According to the invention, the problems of data islanding, stiff intervention, low doctor-patient cooperation efficiency and the like in multi-course management of old people are solved, and active, personalized and closed-loop intelligent health management is realized.