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Updated: Jan 6, 2026

Positron Emission Tomography-based Dose Painting Radiation Therapy in a Glioblastoma Rat Model using the Small Animal Radiation Research Platform
07:57

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Published on: March 24, 2022

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增强差异鬼混动U-Net:一种混合的蒙特卡洛深度学习denoiser用于中子捕获疗法剂量计算

Xuanhe Wang1, Meitong Wei1, Yuxin Wang1

  • 1School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, China.

Medical physics
|November 25, 2025
PubMed
概括

在EDGS-UNet框架加速中子捕获疗法 (BNCT) 剂量计算通过快速无效蒙特卡洛模拟. 这种混合深度学习方法实现了准确的剂量分配,提高了临床适用性.

关键词:
蒙特卡罗的蒙特卡罗是一个非常好的城市.子中子捕获疗法 子中子捕获疗法深度学习是一种深度学习.消灭剂量 消灭剂量

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Irradiation of a spin-active nucleus causes an increase or decrease in the signal intensity of neighboring nuclei that are not necessarily chemically bonded or involved in J-coupling. This phenomenon, called the nuclear Overhauser enhancement (NOE), results from through-space interactions between the nuclear spins. The NOE effect decreases with increasing internuclear distance and is generally not observed beyond 4 angstroms. In NOE, dipole-dipole interactions between neighboring spin-active...
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The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
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When proton-coupled carbon-13 spectra are simplified by a broadband proton decoupling technique, structural information about the coupled protons is lost. Distortionless enhancement by polarization transfer (DEPT) is a technique that provides information on the number of hydrogens attached to each carbon in a molecule. While the DEPT experiment utilizes complex pulse sequences, the pulse delay and flip angle are specifically manipulated. The resulting signals have different phases depending on...
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Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
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Deconvolution, also known as inverse filtering, is the process of extracting the impulse response from known input and output signals. This technique is vital in scenarios where the system's characteristics are unknown, and they must be inferred from the observable signals.
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