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Updated: Aug 16, 2026

Thermal Ablation for the Treatment of Abdominal Tumors
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瑞迪特用户对射频废除的看法:数据分析

Laura Furtado Pessoa de Mendonca1, Sebastian Encalada1, Johanna Mosquera-Moscoso1

  • 1Department of Pain Medicine, Mayo Clinic, Jacksonville, FL, USA.

Interventional pain medicine
|January 15, 2025
PubMed
概括

通过射频除 (RFA) 寻求慢性疼痛缓解的患者在网上分享了各种不同的经验. 对Reddit讨论的分析揭示了患者对RFA有效性,持续时间和不良事件的担忧,突出了需要医生与患者进行知情对话的需要.

关键词:
慢性疼痛是一种慢性疼痛.神经调节是一种神经调节.无线电频率剥离法 无线电频率剥离法社交媒体 社交媒体

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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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¹³C NMR: ¹H–¹³C Decoupling

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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An unknown compound can be established by identifying the molecular ion peak in the mass spectrum. The molecular ion peak is often weak or absent due to the predominance of fragmentation in high-energy electron beams. In such cases, a soft-energy electron beam can be used to scan the spectrum to enhance the intensity of the molecular ion peak. Additionally, chemical ionization, field ionization, and desorption ionization spectra are used to obtain a relatively intense molecular ion peak.To...
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Tandem Mass Spectrometry

Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called...