Evaluation of the CT dose index for scans with an ECG using a 320-rowmultiple-detector CT scanner

Masanao Kobayashi; Yasuki Asada; Kosuke Matsubara; Kichiro Koshida; Shouichi Suzuki; Yuta Matsunaga; Ai Kawaguchi; Tomonobu Haba; Kazuhiro Katada; Hiroshi Toyama

doi:10.1093/rpd/ncu331

Evaluation of the CT dose index for scans with an ECG using a 320-rowmultiple-detector CT scanner

Masanao Kobayashi, Yasuki Asada, Kosuke Matsubara, Kichiro Koshida, Shouichi Suzuki, Yuta Matsunaga, Ai Kawaguchi, Tomonobu Haba, Kazuhiro Katada, Hiroshi Toyama

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The relationship between heart rate (HR) and computed tomography dose index (CTDI) was evaluated using an electrocardiogram (ECG) gate scan for scan applications such as prospective triggering, Ca scoring, target computed tomography angiography (CTA), prospective CTA and retrospective gating, continuous CTA/CFA (cardiac functional analysis) and CTA/CFA modulation. Even in the case of a volume scan, doses for the multiple scan average dose were similar to those for CTDI. Moreover, it was found that the ECG gate scan yields significantly different doses. When selecting the optimum scan, the doses were dependent on many factors such as HR, scan rotation time, active time, prespecified cardiac phase and modulation rate. Therefore, it is necessary to take these results into consideration when selecting the scanning parameters.

Original language	English
Article number	ncu331
Pages (from-to)	532-541
Number of pages	10
Journal	Radiation protection dosimetry
Volume	167
Issue number	4
DOIs	https://doi.org/10.1093/rpd/ncu331
Publication status	Published - 01-12-2015

All Science Journal Classification (ASJC) codes

Public Health, Environmental and Occupational Health
Radiation
Radiological and Ultrasound Technology
Radiology Nuclear Medicine and imaging

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1093/rpd/ncu331

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title = "Evaluation of the CT dose index for scans with an ECG using a 320-rowmultiple-detector CT scanner",

abstract = "The relationship between heart rate (HR) and computed tomography dose index (CTDI) was evaluated using an electrocardiogram (ECG) gate scan for scan applications such as prospective triggering, Ca scoring, target computed tomography angiography (CTA), prospective CTA and retrospective gating, continuous CTA/CFA (cardiac functional analysis) and CTA/CFA modulation. Even in the case of a volume scan, doses for the multiple scan average dose were similar to those for CTDI. Moreover, it was found that the ECG gate scan yields significantly different doses. When selecting the optimum scan, the doses were dependent on many factors such as HR, scan rotation time, active time, prespecified cardiac phase and modulation rate. Therefore, it is necessary to take these results into consideration when selecting the scanning parameters.",

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AU - Kobayashi, Masanao

AU - Asada, Yasuki

AU - Matsubara, Kosuke

AU - Koshida, Kichiro

AU - Suzuki, Shouichi

AU - Matsunaga, Yuta

AU - Kawaguchi, Ai

AU - Haba, Tomonobu

AU - Katada, Kazuhiro

AU - Toyama, Hiroshi

PY - 2015/12/1

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AB - The relationship between heart rate (HR) and computed tomography dose index (CTDI) was evaluated using an electrocardiogram (ECG) gate scan for scan applications such as prospective triggering, Ca scoring, target computed tomography angiography (CTA), prospective CTA and retrospective gating, continuous CTA/CFA (cardiac functional analysis) and CTA/CFA modulation. Even in the case of a volume scan, doses for the multiple scan average dose were similar to those for CTDI. Moreover, it was found that the ECG gate scan yields significantly different doses. When selecting the optimum scan, the doses were dependent on many factors such as HR, scan rotation time, active time, prespecified cardiac phase and modulation rate. Therefore, it is necessary to take these results into consideration when selecting the scanning parameters.

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Evaluation of the CT dose index for scans with an ECG using a 320-rowmultiple-detector CT scanner

Abstract

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UN SDGs

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