Using 80 kVp on a 320-row scanner for hepatic multiphasic CT reduces the contrast dose by 50 % in patients at risk for contrast-induced nephropathy

“…177 Combined use of IR and low tube voltage imaging can improve image quality degradation due to X-ray photon deficiency. 175,178,187 When switching to low tube voltage imaging to reduce the contrast agent volume, it is common to adjust the tube current so that the volume CT dose index will be at the same level as the standard voltage scan (120-kV scan) in order to ensure image quality. There are many types of IR with various manufacturers and generations and differing characteristics.…”

Section: (Minds 2017) Quality Of Evidence: a / Strength Of Recommendamentioning

confidence: 99%

Guideline on the Use of Iodinated Contrast Media in Patients With Kidney Disease 2018

Isaka

Hayashi

Aonuma

et al. 2019

Circ J

Self Cite

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2574 ISAKA Y et al. administered and whether measures to prevent CIN are necessary. Any use of contrast media that is not consistent with the revised guideline reflects the decisions made by the attending physicians on the basis of conditions specific to their patients, and their decisions should be prioritized. The present guideline does not provide any legal basis for prosecuting physicians who do not use contrast media according to the guideline. ▋ 1.3 Selection of Literature, Levels of Evidence, and Grades of Recommendations The revised guideline was prepared according to the procedures proposed by Minds. The guideline writing committee discussed and revised CQs on 9 themes regarding CIN. The working groups addressed the CQs by critically reviewing literature published from September 1, 2011 to March 31, 2017 in major literature databases (e.g., PubMed, MEDLINE, the Cochrane Library, and the Japan Centra Revuo Medicina [Ichushi]), in addition to the literature referenced in the CIN guideline 2012. Literature published since April 2017 was also included as deemed necessary by the guideline committee. Since the CIN guideline 2012 was prepared according to the Minds guideline 2007, CQs included in 2012 were revised according to the Minds guideline 2007. New CQs added in this revised guideline, CQ3-12, CQ5-6, CQ5-7, and CQ6-4, were prepared according to "Minds Guidebook for Guideline Development 2014" and "Minds Manual for Guideline Development 2017". Thus, in this revised guideline, 2 kinds of evidence and recommendation evaluation methods were adopted. A level of evidence and grade of recommendation were assigned to the answers to the CQs.

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“…The clinical utility of the noise reduction effect in adaptive iterative dose reduction 3D (AIDR 3D) protocol due to the hybrid iterative reconstruction (IR) method is widely known. It was reported that using low tube voltage scanning and AIDR 3D protocol together would enable the reduction of exposure dose and contrast medium volume without compromising image quality when compared with conventional tube voltage scanning [11,12]. However, it is suggested that AIDR 3D images may change in sharpness depending on the subject's physique, and image quality using the IR method requires verification regarding the physique of the patient [13].…”

Section: Introductionmentioning

confidence: 99%

Double Dose Reduction in the Equilibrium Phase of Chest-Pelvic CT With Low Tube Voltage and Forward-Projected Model-Based Iterative Reconstruction Solution

Hosogoshi¹,

Tada²,

Iijima³

et al. 2020

Cureus

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This study aimed to examine whether a new imaging method (80-kV forward-projected modelbased iterative reconstruction solution [FIRST] protocol) that uses a combination of low tube voltage and FIRST can reduce radiation dose and contrast medium volume by comparing the quality of the resulting image with that of the image obtained by 120-kV adaptive iterative dose reduction 3D protocol in the equilibrium phase of chest-pelvic computed tomography (CT).

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Using 80 kVp on a 320-row scanner for hepatic multiphasic CT reduces the contrast dose by 50 % in patients at risk for contrast-induced nephropathy

Abstract: • The 80-kVp CT protocol enabled reduction of contrast dose by 50 % • The 80-kVp CT protocol reduced the radiation dose by 25-33 % • There was no degradation in the image quality of the 80-kVp protocol.

Cited by 30 publications

References 41 publications

Guideline on the use of iodinated contrast media in patients with kidney disease 2018

Guideline on the use of iodinated contrast media in patients with kidney disease 2018

Guideline on the Use of Iodinated Contrast Media in Patients With Kidney Disease 2018

Double Dose Reduction in the Equilibrium Phase of Chest-Pelvic CT With Low Tube Voltage and Forward-Projected Model-Based Iterative Reconstruction Solution

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