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Updated: May 8, 2025

Technical Aspect of the Automated Synthesis and Real-Time Kinetic Evaluation of [11C]SNAP-7941
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Technical Aspect of the Automated Synthesis and Real-Time Kinetic Evaluation of [11C]SNAP-7941

Published on: April 28, 2019

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通过CycleGAN和潜在扩散的混合物进行CBCT-to-CT合成

Feng Luo1, Chaoyu Ma1, Juntian Shi2

  • 1South China Normal University, Guangzhou, China.

Neuroradiology
|May 7, 2025
PubMed
概括

CycleDiffSmoothGAN (CDSGAN) 提高了图像引导辐射疗法 (IGRT) 的圆束计算机断层扫描 (CBCT) 图像质量. 这种新的框架增强了盆腔成像,克服了传统方法的局限性,以获得更好的临床应用.

关键词:
从CBCT到CT的合成功能混合的功能混合.高频节能保护高频节能潜在的扩散扩散.

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Cycloadditions are one of the most valuable and effective synthesis routes to form cyclic compounds. These are concerted pericyclic reactions between two unsaturated compounds resulting in a cyclic product with two new σ bonds formed at the expense of π bonds. The [4 + 2] cycloaddition, known as the Diels–Alder reaction, is the most common. The other example is a [2 + 2] cycloaddition.
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Thermal cycloadditions are reactions where the source of activation energy needed to initiate the reaction is provided in the form of heat. A typical example of a thermally-allowed cycloaddition is the Diels–Alder reaction, which is a [4 + 2] cycloaddition. In contrast, a [2 + 2] cycloaddition is thermally forbidden.
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[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction

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Aldehydes and Ketones with HCN: Cyanohydrin Formation Overview

Cyanohydrins are compounds that contain –CN and –OH groups on the same carbon atom. They are formed by the nucleophilic addition of the cyanide ions to the carbonyl group. Cyanide ions are highly basic and nucleophilic and can be generated from HCN under aqueous conditions. However, since HCN is a weak acid, the number of cyanide ions generated is very small. Hence, a small amount of base or KCN/NaCN is added to HCN to increase the concentration of the cyanide ions in the reaction...
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