Dual-source CT coronary angiography: effectiveness of radiation dose reduction with lower tube voltage.

Akmal Sabarudin, Ahmad Khairuddin Md Yusof, May Fang Tay, Kwan Hoong Ng, Zhonghua Sun

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

This study was conducted to investigate the effectiveness of dose-saving protocols in dual-source computed tomography (CT) coronary angiography compared with invasive coronary angiography (ICA). On 50 patients who underwent coronary CT angiography was performed dual-source CT (DSCT) and compared with ICA procedures. Entrance skin dose (ESD), which was measured at the thyroid gland, and effective dose (E) were assessed for both imaging modalities. The mean ESD measured at the thyroid gland was the highest at 120 kVp, followed by the 100 kVp DSCT and the ICA protocols with 4.0±1.8, 2.7±1.0 and 1.1±1.2 mGy, respectively. The mean E was estimated to be 10.3±2.1, 6.2±2.3 and 5.3±3.4 mSv corresponding to the 120-kVp, 100-kVp DSCT and ICA protocols, respectively. The application of 100 kVp in DSCT coronary angiography is feasible only in patients with a low body mass index of <25 kg m(-2), which leads to a significant dose reduction with the radiation dose being equivalent to that of ICA.

Original languageEnglish
Pages (from-to)441-447
Number of pages7
JournalRadiation Protection Dosimetry
Volume153
Issue number4
DOIs
Publication statusPublished - 2013

Fingerprint

angiography
Coronary Angiography
tomography
Radiation
tubes
dosage
electric potential
radiation
thyroid gland
entrances
Thyroid Gland
Skin
Computed Tomography Angiography
Body Mass Index
Tomography

ASJC Scopus subject areas

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

Cite this

Dual-source CT coronary angiography : effectiveness of radiation dose reduction with lower tube voltage. / Sabarudin, Akmal; Md Yusof, Ahmad Khairuddin; Tay, May Fang; Ng, Kwan Hoong; Sun, Zhonghua.

In: Radiation Protection Dosimetry, Vol. 153, No. 4, 2013, p. 441-447.

Research output: Contribution to journalArticle

Sabarudin, Akmal ; Md Yusof, Ahmad Khairuddin ; Tay, May Fang ; Ng, Kwan Hoong ; Sun, Zhonghua. / Dual-source CT coronary angiography : effectiveness of radiation dose reduction with lower tube voltage. In: Radiation Protection Dosimetry. 2013 ; Vol. 153, No. 4. pp. 441-447.
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