3 results about "Contrast medium" patented technology

The invention discloses an oxygen-fluorine liposome microbubble therapeutic agent which consists of microbubbles, and oxygen and at least one perfluocarbon existing in the microbubbles, wherein the gas nucleus takes oxygen as a principle component and takes perfluocarbon as an auxiliary component, and the microbubble mainly consists of phospholipid and polyethylene glycol derivative. According to the oxygen-fluorine liposome microbubble therapeutic agent, oxygen can be controlled to be released in a human body through veins delivery and targeted hypoxia tissue under ultrasound wave irradiation, the hypoxia disease is treated, and the therapeutic agent serves as a contrast agent used for ultrasonic enhanced imaging. Therefore, the microbubble is a developing agent and an oxygenating therapeutic agent.

The invention relates to a novel contrast medium for a triiodobenzene compound and also provides a preparation method of the compound. The triiodobenzene compound is 5-(N-methylacetamide)-N,N'-di(2.3-dyhydroxy n-propyl)-2,4,6-triiodo isophthalamide (I) and has a structural formula shown as the specification.

The invention discloses a method for generating CT angiography based on plain-scan CT. The method comprises the following steps: acquiring a plain-scan CT image and a CTA image corresponding to a layer; constructing a deep learning model for generating a CTA image from the plain-scan CT image; and a loss function of the deep learning model is defined, a back propagation and gradient descent algorithm is adopted, a model parameter enabling the loss function to be minimum is searched, and the trained deep learning model is obtained. According to the method, the defects of current CTA contrast agent injection can be overcome, anaphylactic reaction or renal toxicity possibly caused by contrast agent injection is avoided, the cost and difficulty of CTA are greatly reduced, and the method is suitable for various medical scenes and has very high clinical application value.