建立和使用加纳成年人计算机断层扫描检查的国家诊断参考水平
Shiraz Issahaku1,2, Mary Boadu1,2, Stephen Inkoom1,2
1Ghana Atomic Energy Commission, Medical Radiation Physics Center, Box LG 80, Legon, Accra, Ghana.
Radiation protection dosimetry
|March 7, 2024
概括
这项研究确定了非洲计算机断层扫描 (CT) 的国家诊断参考水平 (DRL),从患者数据中估计剂量指数和剂量长度产物 (DLP). 这些发现为优化该地区CT辐射剂量提供了基线.
科学领域:
- 医学物理 医学物理
- 辐射保护 辐射保护
- 公共卫生 公共卫生
背景情况:
- 国际原子能机构建议在非洲建立诊断参考水平 (DRL).
- 需要在该地区为常规计算机断层扫描 (CT) 检查建立国家DRL.
研究的目的:
- 为非洲的共同CT程序建立和使用国家DRL.
- 为一般的区域和国家成人DRL提供基线.
主要方法:
- 估计的CT剂量指数和剂量长度产物 (DLP) 从每次手术至少20名患者的剂量报告.
- 利用来自 2156 个成年患者剂量报告中的中位数值的第 75 百分位分布.
- 包括来自22个中心的数据,占全国CT设备的54%.
主要成果:
- 对于体积CT剂量指数 (mGy) 的确定的DLR:头部 (60.0),胸部 (15.7),腹腔 (20.5),腰椎 (23.8).
- 对于DLP (mGy-cm) 已建立的DLR:头部 (962.9),胸部 (1102.8),腹腔 (1393.5),腰椎 (824.6).
- 结果与其他非洲国家,欧盟委员会和ICRP的国际数据相比.
结论:
- 该研究成功地建立了参与非洲国家成人CT检查的初步国家DRL.
- 这些DRL是未来区域和国家辐射剂量优化工作的关键基准.
- 这些发现支持更广泛的目标,即提高非洲和其他发展中国家的辐射保护标准.
相关概念视频
Computed Tomography
4.5K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
4.5K
Radiological Investigation I: X-ray and CT
237
Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
237
Imaging Studies I: CT and MRI
242
Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
242
Radiological Investigation III: Pulmonary Angiogram and PET Scan
92
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...
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...
92
Imaging Studies II: Positron Emission Tomography and Scintigraphy
114
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
Fundamental Principles of PET
114


