Procedure-specific CT Dose and Utilization Factors for CT-guided Interventional Procedures

Radiology
Kai YangBob Liu

Abstract

Purpose To present procedure-specific radiation dose metric distributions and define quantitative CT utilization factors for CT-guided interventional procedures. Materials and Methods This single-center, retrospective study collected dictation reports and radiation dose data from 9143 consecutive CT-guided interventional procedures in adult patients from 2012 to 2017. Procedures were sorted into four major interventional categories: ablation, aspiration, biopsy, and drainage, each of which was further divided into subcategories. After exclusion, a total of 8213 procedures (4391 in men and 3822 in women) were divided into 21 subcategories. The mean patient age at examination for men was 62 years ± 15 (standard deviation; age range, 19-114 years), and for women it was 61 years ± 15 (age range, 19-113 years). Distributions of dose metrics and CT usage-related parameters were analyzed by category with descriptive statistic outcomes. Quantitative CT utilization factors (which measure average CT usage) for each interventional subcategory were derived by using total scan length, acquisition count, and number of images. Results Interventional CT scans have distinctly different dose metric characteristics from diagnostic CT scans. Wide ...Continue Reading

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Citations

Jul 19, 2019·Frontiers in Oncology·Mark E GrayDavid Argyle
Nov 13, 2020·European Radiology·Ronald S ArellanoMadan M Rehani
Jan 5, 2021·Updates in Surgery·Abigail J FongBrooke Crawford
Apr 30, 2021·Insights Into Imaging·Alfredo Páez-CarpioIvan Vollmer
May 7, 2021·Journal of Applied Clinical Medical Physics·A Kyle JonesAlda L Tam
May 13, 2021·Cardiovascular and Interventional Radiology·Sebastian ZensenAxel Wetter
Nov 7, 2020·Investigative Radiology·Val M Runge, Johannes T Heverhagen
Jun 20, 2021·Abdominal Radiology·Shiran LevySebastian Flacke
Aug 28, 2020·Current Medical Imaging·Rossella ScandiffioMarco Colangeli

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