双能计算机断层扫描（DECT）测定肾结石成分：一项体模研究

IF 0.2 4区医学 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Iranian Journal of Radiology Pub Date : 2023-06-17 DOI:10.5812/iranjradiol-134455

Mahboobeh Sheikhi, S. Sina, M. Karimipourfard

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引用次数: 1

摘要

背景：双能计算机断层扫描（DECT）已被认为是确定肾结石亚型化学成分的有效方式。目的：本研究旨在评估和比较DECT在肾结石类型和成分鉴定中的疗效，以及作为金标准的生化分析。材料和方法：在医学实验室对146例经手术切除的肾结石进行类型测定。然后将结石插入拟人Rando体模的肾脏，并进行DECT扫描。将扫描仪软件指定的结石类型与作为金标准的生化分析结果进行比较。结果：DECT扫描在鉴定肾结石亚型的化学成分方面显示出可接受的准确性。根据生化分析和DECT结果的比较，胱氨酸、尿酸和草酸钙结石的准确率分别为97%、100%和97%。结论：DECT检测纯尿酸、胱氨酸和草酸钙结石的敏感性较高。然而，对于混合结石，通过DECT扫描直接确定的结石类型是不可靠的。

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Dual-energy Computed Tomography (DECT) Scan for Determination of Renal Stone Composition: A Phantom Study

Background: Dual-energy computed tomography (DECT) scan has been proposed as an effective modality for determining the chemical composition of renal stone subtypes. Objectives: This study aimed to evaluate and compare the efficacy of DECT in the identification of renal stone type and composition versus biochemical analysis as the gold standard. Materials and Methods: The type of 146 renal stones, removed from patients by surgery, was determined in a medical laboratory. The stones were then inserted into the kidney of an anthropomorphic Rando phantom, and DECT scans were acquired. The stone type, specified by the scanner software, was compared with the results of biochemical analysis as the gold standard. Results: The DECT scans showed acceptable accuracy in identifying the chemical composition of renal stone subtypes. Based on the comparison of biochemical analysis and DECT results, the accuracy values for cystine, uric acid, and calcium-oxalate stones were 97%, 100%, and 97%, respectively. Conclusion: Based on the present results, DECT could detect pure uric acid, cystine, and calcium-oxalate stone types with high sensitivity. However, for mixed stones, the stone type, directly identified by DECT scan, was not reliable.

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来源期刊

Iranian Journal of Radiology RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING-

CiteScore

0.50

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Iranian Journal of Radiology is the official journal of Tehran University of Medical Sciences and the Iranian Society of Radiology. It is a scientific forum dedicated primarily to the topics relevant to radiology and allied sciences of the developing countries, which have been neglected or have received little attention in the Western medical literature. This journal particularly welcomes manuscripts which deal with radiology and imaging from geographic regions wherein problems regarding economic, social, ethnic and cultural parameters affecting prevalence and course of the illness are taken into consideration. The Iranian Journal of Radiology has been launched in order to interchange information in the field of radiology and other related scientific spheres. In accordance with the objective of developing the scientific ability of the radiological population and other related scientific fields, this journal publishes research articles, evidence-based review articles, and case reports focused on regional tropics. Iranian Journal of Radiology operates in agreement with the below principles in compliance with continuous quality improvement: 1-Increasing the satisfaction of the readers, authors, staff, and co-workers. 2-Improving the scientific content and appearance of the journal. 3-Advancing the scientific validity of the journal both nationally and internationally. Such basics are accomplished only by aggregative effort and reciprocity of the radiological population and related sciences, authorities, and staff of the journal.