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相关概念视频

Positron Emission Tomography01:29

Positron Emission Tomography

4.1K
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.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
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Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

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Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
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相关实验视频

Updated: Jun 13, 2025

A Whole Body Dosimetry Protocol for Peptide-Receptor Radionuclide Therapy PRRT: 2D Planar Image and Hybrid 2D+3D SPECT/CT Image Methods
09:49

A Whole Body Dosimetry Protocol for Peptide-Receptor Radionuclide Therapy PRRT: 2D Planar Image and Hybrid 2D+3D SPECT/CT Image Methods

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90年以后的PET剂量计

Ali Afrasiabi1, Johannes L du Pisanie1, Bahareh Gholami1

  • 1Department of Radiology, University of North Carolina at Chapel Hill, 101 Manning Drive, Chapel Hill, NC 27514, USA.

PET clinics
|May 9, 2025
PubMed
概括
此摘要是机器生成的。

肝癌的跨动脉放射栓塞 (Y-90) 通过PET成像显示出有希望的结果. PET/CT和PET/MR为剂量评估和治疗反应提供了更高的清晰度,改善了个性化剂量计.

关键词:
干预性放射学是干预性的放射学.在这里,PET是PET.处理后的剂量测量.放射性栓塞是一种放射性栓塞.单光子发射计算机断层扫描.伊特-90是一种.

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Radiosynthesis, Quality Control, and Small Animal Positron Emission Tomography Imaging of 68Ga-Labelled Nano Molecules
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Radiosynthesis, Quality Control, and Small Animal Positron Emission Tomography Imaging of 68Ga-Labelled Nano Molecules

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Continuous Blood Sampling in Small Animal Positron Emission Tomography/Computed Tomography Enables the Measurement of the Arterial Input Function
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Continuous Blood Sampling in Small Animal Positron Emission Tomography/Computed Tomography Enables the Measurement of the Arterial Input Function

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相关实验视频

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A Whole Body Dosimetry Protocol for Peptide-Receptor Radionuclide Therapy PRRT: 2D Planar Image and Hybrid 2D+3D SPECT/CT Image Methods
09:49

A Whole Body Dosimetry Protocol for Peptide-Receptor Radionuclide Therapy PRRT: 2D Planar Image and Hybrid 2D+3D SPECT/CT Image Methods

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Radiosynthesis, Quality Control, and Small Animal Positron Emission Tomography Imaging of 68Ga-Labelled Nano Molecules
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Radiosynthesis, Quality Control, and Small Animal Positron Emission Tomography Imaging of 68Ga-Labelled Nano Molecules

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Continuous Blood Sampling in Small Animal Positron Emission Tomography/Computed Tomography Enables the Measurement of the Arterial Input Function
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科学领域:

  • 核医学是一种核医学.
  • 在瘤学瘤学.
  • 放射学 放射学是一门学科.

背景情况:

  • 用伊-90 (Y-90 TARE) 进行的跨动脉放射栓塞是治疗不可切除的肝癌的标准治疗方法.
  • 目前的治疗后成像通常使用SPECT/CT,这在图像质量上有局限性.

研究的目的:

  • 评估Y-90 TARE的先进成像技术的有效性.
  • 突出基于PET的成像对个性化剂量测量和治疗反应评估的好处.

主要方法:

  • 图像成像方式的比较,包括SPECT/CT,PET/CT和PET/MR用于Y-90TARE.
  • 评估图像质量,剂量定量准确性和与治疗结果的相关性.

主要成果:

  • 与SPECT相比,PET/CT和PET/MR成像提供了更高的信号噪声比率和空间分辨率.
  • 改进的图像清晰度有助于精确量化辐射剂量,并与治疗反应相关联.

结论:

  • 基于PET的成像为Y-90 TARE提供了优越的图像质量,使得更精确的个性化剂量测量成为可能.
  • 建议更广泛地采用PET成像,以完善剂量-反应和剂量-毒性关系,尽管目前存在可用性挑战.