48 results about "Internal iliac aneurysm" patented technology

The invention belongs to the field, particularly relates to a catheter detection method for a vascular aneurysm interventional operation navigation system, and aims to solve the problem that an interventional catheter in an X-ray transmission image in an intravascular aneurysm repair operation cannot be accurately segmented and tracked in real time. The method comprises the following steps: acquiring an X-ray transmission video sequence of a region containing a catheter as a to-be-detected sequence, generating a segmentation mask sequence through a trained encoding and decoding structure according to the to-be-detected sequence, and covering the to-be-detected video with a binary segmentation mask sequence to obtain a video sequence of the catheter. The accuracy and speed of segmentation and tracking of the X-ray transmission image interventional catheter in the intravascular aneurysm repair operation are improved, and the real-time performance required by an operation tracking algorithm is met.

The embodiment of the invention discloses a prediction method and device for intracranial aneurysm operation planning and equipment , and belongs to the technical field of medical images and computers. The method comprises the following steps: performing three-dimensional reconstruction based on to-be-processed craniocerebral image data to obtain a reconstructed blood vessel image; based on the reconstructed blood vessel image, adopting a binary tree method to obtain a tree structure of a blood vessel center line network; and based on the aneurysm parameter and the parent artery parameter of the to-be-processed craniocerebral image data and the tree structure of the blood vessel center line network, obtaining the stent model of a stent for intervention and the release position of the stent for intervention. By adopting the method provided by the embodiment of the invention, the model selection of a stent for intervention can be automatically realized, the release position of a stent for intervention can be automatically determined, and reference is provided for clinical application.

The invention relates to an intracranial aneurysm blood flow guide support. The guide support comprises a main body part and an encryption part, wherein the main body part is of a cylindrical structure which is formed by weaving stent wires manually or by a weaving machine and is provided with an overlapping part through curling and shaping, the encryption part is arranged at the overlapping partfor mesh encryption, and the overlapping part and the encryption part cover an aneurysm opening. By means of the structural design, normal blood circulation of nearby side branch blood vessels is keptwhile blood flowing into the aneurysm is blocked, and in addition, due to the fact that axial stretching and retracting are reduced when the stent is pressed and held, the release difficulty is lowered.

The invention discloses an occlusion device for treating intracranial aneurysm or cerebral aneurysm. The occlusion device comprises a mesh, the mesh has an expanded state and a low configuration statefor intravascular delivery to an aneurysm, the mesh includes a first end portion, a second end portion, and a length extending between the first and second end portions, and a first lateral edge, a second lateral edge, and a width extending between the first and second lateral edges. The mesh may have a predetermined shape in the deployed state, wherein (a) the mesh is curved along its width, (b)the mesh is curved along its length, and (c) the mesh has an undulating profile across at least a portion of one or both of its length or its width. The mesh is configured to be placed within the aneurysm in the deployed state such that the mesh extends over a neck of the aneurysm.

The invention belongs to the field of medical instruments and relates to a device for being implanted in the abnormal bulging position of an arterial canal wall. The device comprises a bag capable of being implanted in the abnormal bulging position of the arterial canal wall and bulging, when the bag bulges, the bag has 3D modeling anatomy three-dimensional morphological features conforming to the implanting position, and therefore blood cannot flow into the abnormal bulging position of the arterial canal wall from an arterial canal. According to the device, the blood cannot flow into the abnormal bulging position of the arterial canal wall from the arterial canal, blood flow smoothness in the tumor-carrying arterial canal is kept, blood flow smoothness of branch blood vessels of the arterial canal is kept, thus, the device can be used for treating the diseases such as intracranial aneurysms, visceral aneurysms, false aneurysms, aortic aneurysms, artery dissection and aortic dissection, and a new way for aortic disease interventional therapy is expected to be opened up.

The invention relates to an intracranial aneurysm morphological parameter semi-automatic measurement method, which comprises the following steps of: A1, acquiring a first aneurysm diameter plane and a first blood flow direction vector based on a first mask combination of a single aneurysm; a2, based on the first aneurysm diameter plane, the first blood flow direction vector and an aneurysm mask in the first mask combination, according to a calculation rule of each parameter value in the parameter information, acquiring parameter information of the aneurysm; a3, based on predefined conditions of an aneurysm external rectangular frame, according to the first aneurysm diameter plane, the first blood flow direction vector and an aneurysm mask in the first mask combination, obtaining the aneurysm external rectangular frame; and A4, based on the first mask combination, the aneurysm external rectangular frame and the parameter information of the aneurysm, outputting a visual result for a doctor to check. According to the method, the tool is manually adjusted to assist the segmentation of the aneurysm and the tumor-carrying blood vessel, so that the accuracy of parameter calculation is ensured.

The present invention relates to a method for predicting the risk of having or developing Intracranial aneurysms (IA) in a subject, by identifying at least one mutation in an angiogenic protein, such as Angiopoietin-Like 6 (ANGPTL6). In particular, inventors identified one rare nonsense variant (c.1378A>T) in the last exon of the ANGPTL6 gene which encodes a 10 circulating pro-angiogenic factor mainly secreted from the liver shared by the 4 tested affected members of a large pedigree with multiple IA carriers. They GC showed a 50% reduction of ANGPTL6 serum concentration in heterozygous c.1378A>T carriers compared to non-carrier relatives, due to the non-secretion of the truncated protein produced by the c.1378A>T transcripts. They observed a higher rate of individuals with a history of high blood pressure 15 among affected versus healthy carriers of ANGPTL6 variants, suggesting that ANGPTL6 could trigger cerebrovascular lesions when combined with other risk factors such as hypertension.

Method for sealing a stent graft in an endovascular aneurysm repair. Includes following steps/procedures. Positioning the stent graft to extend across an aneurysm in aneurysmatic host vessel. Introducing and placing a balloon catheter in the host vessel at a location distal to the graft distal end. Inflating balloon to pressure configured for unconstrained balloon expansion with maximal balloon diameter equal to or greater than smallest inner diameter of host vessel, thereby occluding normal blood flowing thereacross. Infusing contrast enhancing material through balloon catheter for allowing radiographic visualization of endoleakage between stent graft and a host vessel wall. Deflating and repositioning balloon to another location within stent graft. Pressurizing balloon to another pressure configured for plastically expanding selected section of stent graft from a smaller diameter to a fixed enlarged diameter.

The embodiment of the invention discloses a method, device and equipment for predicting intracranial aneurysm occlusion, and belongs to the technical field of medical images and computers. The method comprises the following steps: acquiring to-be-processed data; inputting the to-be-processed data into an intracranial aneurysm prediction model, and obtaining prediction values corresponding to the to-be-processed data, wherein the intracranial aneurysm prediction model comprises a first model, the first model is a model obtained through deep learning pre-training, and the prediction values corresponding to the to-be-processed data comprise the first prediction value; based on the prediction value corresponding to the to-be-processed data, obtaining a prediction result of aneurysm occlusion of the to-be-processed data. By adopting the method provided by the specification, the difference caused by human factors can be eliminated or reduced, the time required by human observation and thinking is shortened, the aneurysm occlusion can be quickly predicted, and the accuracy of occlusion prediction is improved.

The invention relates to a serum marker for diagnosing intracranial aneurysm and a serum marker for predicting rupture potential of intracranial aneurysm. The serum marker for diagnosing intracranial aneurysm is selected from one or more of the following protein factors: PRTN3, CTSG, PDLIM1, MMP9, IGKV3-20, MPO, PROC, LTF, FGA, FGB, PPBP or SERPINA1. The serum marker for predicting the rupture potential of the intracranial aneurysm is selected from one or more of the following protein factors: SAA1, LRG1, FGL1, PTGDS, COMP, IGKV4-1, APOA4, FGA, FGB and FGG. Compared with the prior art, the serum marker for diagnosing the intracranial aneurysm and the serum marker for predicting rupture of the intracranial aneurysm are screened by applying a PRM mass spectrum technology based on an Orbitrap Explores 480 mass spectrometer and a bioinformatics method, so that a new thought is provided for clinical diagnosis and treatment of the intracranial aneurysm; and high sensitivity, specificity and accuracy are achieved. In addition, the protein mass spectrum technology can be perfected and improved, and the inspection cost is reduced, so that the serum marker is enabled to be more suitable for clinical application of precision medicine.

The invention belongs to the technical field of intracranial aneurysm detection, and particularly relates to an intracranial aneurysm detection method based on multi-dimensional feature fusion. The method comprises the following steps: S1, collecting data, dividing the collected data into three data sets: a training set, a verification set and a test set, wherein the training set and the verification set are used for a training stage of a model, and the test set is used for verifying the performance of the model; S2, screening and preprocessing of data: before model training, performing screening and preprocessing on an original CTA examination report directly obtained from a hospital so as to reduce the influence of irrelevant reports and backgrounds on a segmentation result; S3, constructing and training the model, and designing an H-AttResUNet mixed dimension convolutional neural network model. According to the intracranial aneurysm detection method based on multi-dimensional feature fusion, the intra-slice features and the three-dimensional context features can be effectively detected, and more accurate segmentation of the intracranial aneurysm is realized.

Systems and methods for treating an aneurysm in accordance with embodiments of the present technology include intravascular delivery of an occlusion member to an aneurysm lumen through an elongate shaft and intraluminal transformation of the shape of the occlusion member. The method may include introducing an embolic element into a space between an occlusion member and an inner surface of an aneurysm wall. In some embodiments, the elongate shaft is removably coupled to the distal portion of the occlusion member.

The invention discloses an occlusion device for treating intracranial aneurysm or cerebral aneurysm. The occlusion device comprises a mesh, the mesh has an expanded state and a low configuration statefor intravascular delivery to an aneurysm, the mesh includes a first end portion, a second end portion, and a length extending between the first and second end portions, and a first lateral edge, a second lateral edge, and a width extending between the first and second lateral edges. The mesh may have a predetermined shape in the deployed state, wherein (a) the mesh is curved along its width, (b)the mesh is curved along its length, and (c) the mesh has an undulating profile across at least a portion of one or both of its length or its width. The mesh is configured to be placed within the aneurysm in the deployed state such that the mesh extends over a neck of the aneurysm.

The embodiment of the invention discloses a method for predicting intracranial aneurysm information, a device and equipment, and belongs to the technical field of medical images and computers. The method comprises the following steps: acquiring grid data of image data to be processed, intracranial aneurysm morphological data and case information data; performing normalization processing on the intracranial aneurysm morphological data and the case information data to obtain normalized intracranial aneurysm morphological data and normalized case information data; and inputting the grid data, the normalized intracranial aneurysm morphological data and the normalized case information data into an intracranial aneurysm information prediction model, and predicting the intracranial aneurysm information of the to-be-processed image data to obtain a prediction result of the intracranial aneurysm information. By adopting the method provided by the invention, the influence of human factors can be reduced, the prediction of intracranial aneurysm information can be quickly realized, the accuracy is high, and an objective basis can be provided for clinical adjuvant therapy.

The invention discloses an intracranial aneurysm surface area positioning method and device, computer equipment and a storage medium, and the method comprises the steps: obtaining an intracranial angiography image, and constructing a three-dimensional aneurysm blood vessel model based on the intracranial angiography image; segmenting the three-dimensional aneurysm blood vessel model along a tumor neck to obtain a three-dimensional aneurysm model, and performing UV expansion on the three-dimensional aneurysm model to obtain a UV plane model; determining a farthest point on the tumor neck boundary space curve along the blood flow direction and the highest point of the aneurysm on the three-dimensional aneurysm blood vessel model, taking a mapping point of the highest point on the UV plane model as a pole, taking a ray formed by the pole and the mapping point of the farthest point on the UV plane model as a polar axis, and establishing a polar coordinate system on the UV plane model; and positioning and dividing the surface area of the intracranial aneurysm according to the polar coordinates of the area segmentation points of the three-dimensional aneurysm model at the mapping points of the UV plane model. According to the method, the surface area of the intracranial aneurysm can be accurately positioned.