6 results about "Acute stroke" patented technology

The invention provides a method for quantifying a water content ratio, which comprises the following steps of: scanning a brain by using first energy and second energy through dual-energy CT (Computed Tomography) equipment to generate plain scanning data of each voxel; setting the three substances of the dual-energy tomography three-substance separation mathematical model as water, grey matter and white matter; processing the plain scanning data of each voxel by using the dual-energy tomography three-substance separation mathematical model to obtain enhanced data of each voxel; and calculating the water content percentage of each voxel according to the enhancement data of each voxel. The method for quantifying the water content can quantify the water content of the encephaledema tissue of the acute stroke patient, and further quantify the edema proportion of the encephaledema tissue. The invention further provides a water content ratio quantifying device, a tomography system and a storage medium which relate to the method.

The application discloses a stroke prediction method and device based on a cerebrovascular image feature group, a medium and a product, relates to the field of image processing, and comprises the following steps: constructing a clinical database; constructing a clinical cause classification prediction model according to multi-modal image feature group data, clinical feature data and patient clinical cause classification; determining cerebrovascular image features by adopting a cerebrovascular tissue segmentation model and voxel-based morphological analysis according to TOF-MRA, and performing positioning diagnosis on a responsible blood vessel area according to the cerebrovascular image features; and constructing a stroke recurrence risk prediction model according to the cerebrovascular image features in the TOF-MRA, SWI, T1WI, T2-FLAIR and corresponding clinical feature data. The application can quickly and accurately realize cause classification of an acute stroke patient in a clinical scene, accurately identify a responsible blood vessel, and realize recurrence risk prediction in an early stage of the disease.

The invention relates to the technical field of cell therapy, and particularly discloses a mesenchymal stromal cell drug and application thereof in treating acute cerebral apoplexy. The invention provides a cell drug, the cell drug comprises mesenchymal stromal cells and pharmaceutically acceptable auxiliary materials, compared with stem cells, the expression level of mRNA encoding self-renewal and differentiation in the mesenchymal stromal cells is negative, and the expression level of mRNA encoding self-renewal and differentiation in the stem cells is negative. The proportion of the mesenchymal stromal cells in the cell medicine is 90% or above. The cell medicine follows the characteristics and the action mechanism of stromal cells, homes at a new blood vessel formed by endothelial cells of an injured part in an effective time window, plays roles in promoting / maintaining the new blood vessel and remodeling the microenvironment of the injured part, fully ensures the safety and the effectiveness of disease treatment, and has a wide application prospect. And a new method is provided for diagnosis and treatment of related diseases.

A method for stroke detection is provided. A data capture module captures input data from a plurality of sensors, in response to user assessment instructions for a person to look at one or more camera, perform one or more arm exercises, and perform one or more speech acts. A perception module generates summaries of the input data corresponding to artifacts associated with one or more machine learning models. A classification module accepts as input the input data from the data capture module and the summaries from the perception module. Based on the input data and the summaries, a classification module assigns a stroke classification label and a corresponding probability. The classification module outputs a recommendation according to the stroke classification label and the corresponding probability.

This invention relates to a method for early identification and screening of acute stroke based on multimodal fusion technology. The method includes step 1: initializing a multimodal inference model, whose output data includes an acute stroke risk assessment, localization analysis of abnormal signs, and targeted early intervention and prognostic recommendations; step 2: collecting and inputting the patient's bio-audio data, bio-video data, and clinical text data into the multimodal inference model; and step 3: based on the acquired multimodal data of the patient, outputting the acute stroke risk assessment result, a localization analysis report based on abnormal signs, and targeted early intervention and prognostic recommendations. This method for early identification and screening of acute stroke enables simple, accurate, and efficient self-examination of acute ischemic stroke in the very early stages, facilitating timely medical attention within the reperfusion therapy window and achieving early detection and treatment.

The invention relates to the technical field of biology, in particular to a medicine and application thereof. The drug is an exosome (DPSCs-Exos) derived from dental pulp stem cells (DPSCs-Exos). The DPSCs-Exos is given after acute cerebral apoplexy, so that sensory movement and cognitive function recovery after cerebral ischemia can be promoted. The DPSCs-Exos can improve ischemia for 45 minutes, and brain tissue injury and neurological function injury of animals after reperfusion for 28 days. The DPSCs-Exos promotes the expression increase of protein arginine methyltransferase (PRMT5) in oligodendroglia precursor cells (OPC), inhibits the expression of a differentiation inhibition factor 2 (ID2) through nucleation, promotes the OPCs to proliferate and differentiate into oligodendroglia cells (OL), and promotes the integrity repair of white matter. In addition, DPSCs-Exos can promote proliferation and migration of vascular endothelial cells and promote blood brain barrier repair.