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125 results about "Multi organ" patented technology

Multi-organ transplants are surgical procedures in which two or more failing organs are replaced with healthy ones, usually — but not always — from the same deceased donor and in one continuous series of operations.

Abdomen multi-organ nuclear magnetic resonance image segmentation method and system based on FCN and medium

The invention discloses an abdominal multi-organ nuclear magnetic resonance image segmentation method and system based on FCN, and a medium. The abdominal multi-organ nuclear magnetic resonance imagesegmentation method comprises the following implementation steps: acquiring an input image and carrying out data preprocessing and image normalization operation; inputting the normalized abdominal multi-organ nuclear magnetic resonance image into a trained high-resolution full convolutional neural network model to obtain a final prediction image, wherein the high-resolution full convolutional neural network model is pre-trained to establish a mapping relationship between the normalized abdominal multi-organ nuclear magnetic resonance image and the corresponding final prediction image; and activating the final prediction graph by using an activation function to obtain a prediction score graph, and taking a category with the highest prediction score at each pixel position as a prediction label category of the pixel position to obtain a final segmentation prediction graph. According to the abdominal multi-organ nuclear magnetic resonance image segmentation method, automatic segmentation of the abdominal multi-organ nuclear magnetic resonance image can be realized, for example, the abdominal multi-organ MR image is segmented according to five different region types of an organ-free region, a liver region, a right kidney region, a left kidney region and a spleen region.
Owner:SUN YAT SEN UNIV

Contour perception multi-organ segmentation network construction method based on class-by-class convolution operation

ActiveCN112465827AGood for Semantic SegmentationGood for edge detectionImage enhancementImage analysisData setMulti organ
The invention discloses a contour perception multi-organ segmentation network construction method based on class-by-class convolution operation. The contour perception multi-organ segmentation networkconstruction method comprises the following steps: 1, performing region coarse segmentation and edge detection on multiple organs of the abdomen; 2, introducing a semantic-guided class-by-class multi-scale attention mechanism; step 3, performing class-by-class fusion of multi-branch information; step 4, performing introduction of multi-task loss. According to the invention, the advantages of a convolutional neural network and a gated recurrent neural unit are utilized, and for the characteristics and difficulties of a multi-organ segmentation task, via the contour information assisted multi-scale feature extraction, a class-by-class multi-scale semantic attention mechanism, a class-by-class cavity convolution fusion mechanism and a plurality of loss functions can be introduced to relievethe inter-class imbalance problem of organs; multi-organ segmentation is performed on a three-dimensional CT image more efficiently and accurately, and the advantages of the invention are verified ona data set containing 14 types of organ labels; the invention can be widely applied to computer-aided diagnosis and treatment application, such as endoscopic surgery, interventional therapy and radiotherapy plan making.
Owner:BEIHANG UNIV

Multi-organ chip based on microfluidics and preparation method of multi-organ chip

The invention provides a multi-organ chip based on microfluidic technology and a preparation method thereof. The microfluidic chip is mainly composed of an upper chip, a carbonate film and a lower chip. The preparation method is as follows: the upper chip and the carbonate film are sealed with oxygen plasma; after the upper surface of the upper and lower chips is dipped in PDMS, it is aligned and bonded with the upper chip that has been irreversibly sealed with the carbonate film. The advantages of the present invention are: using the multi-layer microfluidic chip integration method, combining the culture units of various cells, and assembling and constructing the models of various organs on the same chip according to the sequence of operation between organs in the body , realizes the multi-organ combination chip construction method conveniently and quickly, and the organs can be effectively divided, which is convenient for the separate control and observation of each organ.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Administration of serine protease inhibitors to the stomach

The inventors have unexpectedly discovered that shock and / or potential multi-organ failure due to shock can be effectively treated by administration of liquid high-dose protease inhibitor formulations to a location upstream of where pancreatic proteases are introduced into the gastrointestinal tract. Most preferably, administration is directly to the stomach, for example, via nasogastric tube under a protocol effective to treat shock by such administration without the need of providing significant quantities of the protease inhibitor to the jejunum and / or ileum.
Owner:LEADING BIOSCI +1

Thoracic cavity multi-organ segmentation method based on cascade residual full convolutional network

The invention discloses a thoracic cavity multi-organ segmentation method based on a cascade residual full convolutional network. The method comprises the following steps: roughly segmenting each organ by using a rough segmentation model for positioning the range of each organ, then using the single fine segmentation model of each organ for carrying out fine segmentation on the coarsely segmentedand positioned region to obtain a fine segmentation result of each organ, finally, combining the results to obtain a final multi-organ segmentation result, and reserving more details in the segmentation result. The method is improved on the basis of u-net, and residual connection and an attention mechanism of a feature dimension are introduced into a down-sampling module in u-net, so that the network is easier to train, and has an automatic feature selection capability. Besides, a cascading strategy is introduced, and a staged segmentation network is used, so that rapid and accurate segmentation of multiple organs of the thoracic cavity CT is realized.
Owner:ZHEJIANG UNIV

Therapy of Kidney Diseases and Multiorgan Failure with Mesenchymal Stem Cells and Mesenchymal Stem Cell Conditioned Media

Methods and a composition for the treatment of organ dysfunction, acute renal failure, multi-organ failure, early dysfunction of kidney transplant, graft rejection, chronic renal failure, wounds, and inflammatory disorders including media conditioned by mesenchymal stem cells are provided. Methods for modulation of growth factor and cytokine expression including administering a therapeutic amount of mesenchymal stem cells, endothelial cells derived from mesenchymal stem cells, or media conditioned by mesenchymal stem cells are also provided.
Owner:THE GOVERNMENT OF THE UNITED STATES OF AMERICA AS REPRESENTED BY THE DEPT OF VETERANS AFFAIRS +1

Use of Fibroblast Growth Factor Fragments

A discovery process beginning with an in vivo screening of proteins, peptides, natural products, classical medicinal compound or other substances. The administration of compounds to the animal can be either direct or indirect, such as by the administration and expression of cDNA-containing plasmids. Since the discovery process of the invention is based on a non-preconceived hypothesis and whole organism multi-organ analysis, a compound can be selected for testing in the absence of any biological selection criteria. The resulting organism-wide pattern of the gene expression changes in the transcriptome provides an overview of the activities at the molecular and organism-wide levels. The discovery process of the invention then integrates in vivo profiling and internal and external genomic databases to elucidate the function of unknown proteins, typically within few months. The invention further relates to medical uses of fibroblast growth factor 23 (FGF-23), FGF-23 fragments, FGF-23 C-terminal polypeptides, FGF-23 homologs and / or FGF-23 variants.
Owner:BOLLEKENS JACQUES +6

Multi-organ segmentation method based on self-supervised feature small sample learning

PendingCN113706487ASolve the problem of not being able to trainReduce distractionsImage enhancementImage analysisDiseaseData set
The invention discloses a multi-organ segmentation method based on self-supervised feature small sample learning, and mainly solves the problem of poor multi-organ segmentation effect by using a small sample learning segmentation method in the prior art. According to the scheme, the method comprises the steps of: using a superpixel segmentation method for generating a large amount of data containing pseudo labels from an initial data set, and selecting images and the pseudo labels from the data to serve as a support set; generating a query set by adopting a data enhancement method; extracting image features of the support set and the query set through a pre-trained encoder by using self-supervised feature learning, and then calculating the similarity of the image features to obtain foreground information and prior probability auxiliary information feature maps; constructing a segmentation network to carry out feature refining on the foreground information to obtain a support set prototype; and calculating a classification probability according to the support set prototype and the prior probability auxiliary information feature map to obtain a segmentation result. The method reduces over-segmentation and under-segmentation phenomena of large target organs, improves recognition of small target organs, can be used for multi-organ segmentation of medical images, and assists doctors in diagnosing diseases.
Owner:XIDIAN UNIV
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