Radiation Dose in CT–guided Interventional Procedures: Establishing a Benchmark

Leng, Shuai

doi:10.1148/radiol.2018181245

Cited by 3 publications

(3 citation statements)

References 9 publications

(12 reference statements)

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“…As demonstrated by Guberina et al [ 29 ], radiation exposure during CT interventions is largely dependent on the scanner generation. However, as demonstrated by our novel mobile workflow, and in accordance with the request by Leng [ 30 ], by implementing a radiation protection cabin into the interventional procedure, radiation exposure can be drastically reduced for the medical staff.…”

Section: Discussionmentioning

confidence: 93%

Cutting Staff Radiation Exposure and Improving Freedom of Motion during CT Interventions: Comparison of a Novel Workflow Utilizing a Radiation Protection Cabin versus Two Conventional Workflows

et al. 2021

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This study aimed to evaluate the radiation exposure to the radiologist and the procedure time of prospectively matched CT interventions implementing three different workflows—the radiologist—(I) leaving the CT room during scanning; (II) wearing a lead apron and staying in the CT room; (III) staying in the CT room in a prototype radiation protection cabin without lead apron while utilizing a wireless remote control and a tablet. We prospectively evaluated the radiologist’s radiation exposure utilizing an electronic personal dosimeter, the intervention time, and success in CT interventions matched to the three different workflows. We compared the interventional success, the patient’s dose of the interventional scans in each workflow (total mAs and total DLP), the radiologist’s personal dose (in µSV), and interventional time. To perform workflow III, a prototype of a radiation protection cabin, with 3 mm lead equivalent walls and a foot switch to operate the doors, was built in the CT examination room. Radiation exposure during the maximum tube output at 120 kV was measured by the local admission officials inside the cabin at the same level as in the technician’s control room (below 0.5 μSv/h and 1 mSv/y). Further, to utilize the full potential of this novel workflow, a sterile packed remote control (to move the CT table and to trigger the radiation) and a sterile packed tablet anchored on the CT table (to plan and navigate during the CT intervention) were operated by the radiologist. There were 18 interventions performed in workflow I, 16 in workflow II, and 27 in workflow III. There were no significant differences in the intervention time (workflow I: 23 min ± 12, workflow II: 20 min ± 8, and workflow III: 21 min ± 10, p = 0.71) and the patient’s dose (total DLP, p = 0.14). However, the personal dosimeter registered 0.17 ± 0.22 µSv for workflow II, while I and III both documented 0 µSv, displaying significant difference (p < 0.001). All workflows were performed completely and successfully in all cases. The new workflow has the potential to reduce interventional CT radiologists’ radiation dose to zero while relieving them from working in a lead apron all day.

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Section: Discussionmentioning

confidence: 93%

Cutting Staff Radiation Exposure and Improving Freedom of Motion during CT Interventions: Comparison of a Novel Workflow Utilizing a Radiation Protection Cabin versus Two Conventional Workflows

et al. 2021

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“…Few Studies have been carried out in the DRLs for X-ray guided procedures and fluoroscopy. In general, DRLs for x-ray guided procedures are carried out in a single institution that is considered a limitation of existing studies (Vano et al, 2009;Leng, 2018). Complicity of setting DRLs for x-ray guided procedures is related to the large variations in patient radiation doses.…”

Section: X-ray Guided Procedures and Fluoroscopymentioning

confidence: 99%

Towards the Establishment of Diagnostic Reference Levels in Saudi Arabia: Review and Opinion

et al. 2021

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T HIS STUDY aims at providing an overview and evaluation of the current situation of the national Diagnostic Reference Levels (DRLs) in Saudi Arabia. Studies published in Pubmed and Google-Scholar, since the DRLs were proposed, are reviewed and general considerations are highlighted, by reviewing some established international DRLs, regarding x-rays and nuclear medicine modalities. The importance of national DRLs (Saudi DRLs) is introduced and discussed. An overview of some studies on Saudi DRLs regarding selected procedures is presented and the validity of radiation dosimetry studies for establishing Saudi DRLs is discussed. The establishment of DRLs for pediatric patient procedures is introduced, discussed and emphasized. An enormous amount of work is required to establish the Saudi DRLs for different procedures, as more than 90% of the work has not been accomplished. Collaboration between researchers is necessary to allow comparisons of DRLs results and to validate the establishment of Saudi DRLs. Furthermore, DRLs for pediatric patient procedures should take priority.

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“…При первом варианте врач постепенно, шаг за шагом продвигает иглу в необходимом направлении и периодически, выходя из процедурной кабинета КТ, выполняет сканирования для контроля положения инструмента в пространстве. С учетом того, что при такой операции само продвижение иглы происходит "вслепую", имеется относительно больший риск повреждения соседних органов и других анатомических структур, кроме того, процедура занимает относительно много времени, высока лучевая нагрузка на пациента за счет многократных сканирований [3,4]. В то же время медицинский персонал в этой ситуации, как правило, не подвергается лучевому воздействию.…”

Section: Introductionunclassified

CT-guided robotic-assisted percutaneous interventions: first experience

Burovik

Prokhorov

Лушина

et al. 2019

Medicinskaâ vizualizaciâ

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Computed tomography is an effective method of monitoring of percutaneous interventions. Conventional CT guidance and CT-fluoroscopy are used most frequently for proce dure monitoring. Image-guided robotic needle positioning is an alternative and relatively modern approach for interventional procedures.Purpose: to demonstrate convenience, effectiveness and safety of robotic system for CT-guided interventions.Materials and methods. CT-guided percutaneous interventions were performed in FSBI “N.N. Petrov NMRC of Oncology” Ministry of Healthcare of The Russian Federation using the Philips Ingenuity CT scanner and Maxio Perfint robotic system. This article presents clinical observations of adrenal tumor biopsy and cryoablation of a renal cell carcinoma. For cryoablation the Medical Cryotherapeutic System was used.Results. The robotic system for CT-guided interventions allowed to perform corresponding surgical procedures.Conclusions. The Maxio robotic console seems to be a promising technical solution for CT-guided interventions. Evaluation of the effectiveness of the robotic and traditional approaches of CT control in percutaneous procedures requires further investigations and analysis on larger data sample in longer periods of observation.

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Radiation Dose in CT–guided Interventional Procedures: Establishing a Benchmark

Cited by 3 publications

References 9 publications

Cutting Staff Radiation Exposure and Improving Freedom of Motion during CT Interventions: Comparison of a Novel Workflow Utilizing a Radiation Protection Cabin versus Two Conventional Workflows

Cutting Staff Radiation Exposure and Improving Freedom of Motion during CT Interventions: Comparison of a Novel Workflow Utilizing a Radiation Protection Cabin versus Two Conventional Workflows

Towards the Establishment of Diagnostic Reference Levels in Saudi Arabia: Review and Opinion

CT-guided robotic-assisted percutaneous interventions: first experience

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