Evidence map›Paper›PMID 34111709›Full record

ArticleTranslational oncology2021

Split-bolus computed tomography urography (CTU) achieves more than half of radiation dose reduction in females and overweight patients than conventional single-bolus computed tomography urography.

Li-Jen Wang, Yon-Cheong Wong, Yi-Shuan Hwang, See-Tong Pang, Cheng-Keng Chuang, Ying-Hsu Chang

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Article in Translational oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

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1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Li-Jen WangDepartment of Medical Imaging and Intervention, New Taipei Municipal Tucheng Hospital, Chang Gung Medical foundation, New Taipei City, Tucheng District, No. 6, Section 2, Jincheng Road, Taiwan; Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan. Electronic address: lijenwang0918@gmail.com.
Yon-Cheong WongDepartment of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Medical Imaging and Intervention, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Yi-Shuan HwangDepartment of Medical Imaging and Intervention, New Taipei Municipal Tucheng Hospital, Chang Gung Medical foundation, New Taipei City, Tucheng District, No. 6, Section 2, Jincheng Road, Taiwan; Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
See-Tong PangDepartment of Urology, Linkou Chang Gung Memorial Hospital, College of Medicine, Taoyuan, Taiwan.
Cheng-Keng ChuangDepartment of Urology, Linkou Chang Gung Memorial Hospital, College of Medicine, Taoyuan, Taiwan.
Ying-Hsu ChangDepartment of Urology, Linkou Chang Gung Memorial Hospital, College of Medicine, Taoyuan, Taiwan; Department of Urology, New Taipei Municipal Tucheng Hospital, Chang Gung Medical foundation, New Taipei City, Taiwan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo compare radiation dose between single-bolus and split-bolus computed tomography urography (CTU). MATERIALS AND

methodsWe prospectively enrolled patients undergoing single-bolus and split-bolus CTU from 2019 June to 2020 June. The age, sex and body mass index (BMI) of each patient was recorded and categorized into BMI classes. The radiation dose indices including volumetric computed dose index, size-specific dose estimate, dose length product and effective dose of each patient were compared between 2 CTU groups with calculation of dose reduction proportions (DRPs).

resultsSeventy-six patients underwent single-bolus (n = 39) and split-bolus (n = 37) CTU. Single-bolus CTU had higher radiation doses than split-bolus CTU and there were statistically significant differences of all radiation dose indices between two CTU groups without and with stratification by sex and BMI classes. The DRPs of volumetric computed dose index, size-specific dose estimate, dose length product and effective dose using split-bolus CTU were 49%, 49%. 50%, and 45%, respectively. Multiple linear regression with an effect size (f

conclusionsSplit-bolus CTU could be preferred by its significant radiation dose reduction effect in regard to single-bolus CTU, which was most profound in females and overweight patients.

Indexed as

Computed tomography urographyRadiation doseSplit-bolus

Identifiers

PMID34111709
PMCPMC8193142

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