Abstract
We examined the effects of a reduced exposure dose on the quality of images from an angiography device augmented with a noise reduction algorithm. Before its clinical application, we compared the diameter of the discrimination limit of the hole with that in the conventional method by a visual evaluation with a contrast-detail (C-D) phantom imaged using the target dose. Based on the results, a reducible dose was determined and applied clinically. The sample population consisted of patients being followed up after percutaneous coronary intervention (PCI) for coronary artery disease; we evaluated the effects of the exposure reduction on image quality. A significant dose reduction was observed by the noise-reduction method compared to the conventional method; the radiation dose to the flat panel detector (FPD) could be reduced to 70 nGy per frame. Clinically, a dose reduction of approx. 40% was obtained while maintaining image quality almost equal to that of the conventional method.
| Original language | English |
|---|---|
| Pages (from-to) | 153-164 |
| Number of pages | 12 |
| Journal | Acta Medica Okayama |
| Volume | 72 |
| Issue number | 2 |
| Publication status | Published - Jan 1 2018 |
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Keywords
- Contrast-detail phantom
- Image quality
- Noise reduction
- Percutaneous coronary intervention
- Radiation dose
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
Cite this
Image quality of the coronary angiography with noise reduction technology to decrease the radiation dose. / Kumashiro, Masayuki; Kataoka, Takahiro; Yokota, Shinobu; Nakagawa, Shinobu; Otsuki, Keisuke; Miyake, Nobuyuki; Osumi, Shinji; Yamaoka, Kiyonori.
In: Acta Medica Okayama, Vol. 72, No. 2, 01.01.2018, p. 153-164.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Image quality of the coronary angiography with noise reduction technology to decrease the radiation dose
AU - Kumashiro, Masayuki
AU - Kataoka, Takahiro
AU - Yokota, Shinobu
AU - Nakagawa, Shinobu
AU - Otsuki, Keisuke
AU - Miyake, Nobuyuki
AU - Osumi, Shinji
AU - Yamaoka, Kiyonori
PY - 2018/1/1
Y1 - 2018/1/1
N2 - We examined the effects of a reduced exposure dose on the quality of images from an angiography device augmented with a noise reduction algorithm. Before its clinical application, we compared the diameter of the discrimination limit of the hole with that in the conventional method by a visual evaluation with a contrast-detail (C-D) phantom imaged using the target dose. Based on the results, a reducible dose was determined and applied clinically. The sample population consisted of patients being followed up after percutaneous coronary intervention (PCI) for coronary artery disease; we evaluated the effects of the exposure reduction on image quality. A significant dose reduction was observed by the noise-reduction method compared to the conventional method; the radiation dose to the flat panel detector (FPD) could be reduced to 70 nGy per frame. Clinically, a dose reduction of approx. 40% was obtained while maintaining image quality almost equal to that of the conventional method.
AB - We examined the effects of a reduced exposure dose on the quality of images from an angiography device augmented with a noise reduction algorithm. Before its clinical application, we compared the diameter of the discrimination limit of the hole with that in the conventional method by a visual evaluation with a contrast-detail (C-D) phantom imaged using the target dose. Based on the results, a reducible dose was determined and applied clinically. The sample population consisted of patients being followed up after percutaneous coronary intervention (PCI) for coronary artery disease; we evaluated the effects of the exposure reduction on image quality. A significant dose reduction was observed by the noise-reduction method compared to the conventional method; the radiation dose to the flat panel detector (FPD) could be reduced to 70 nGy per frame. Clinically, a dose reduction of approx. 40% was obtained while maintaining image quality almost equal to that of the conventional method.
KW - Contrast-detail phantom
KW - Image quality
KW - Noise reduction
KW - Percutaneous coronary intervention
KW - Radiation dose
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UR - http://www.scopus.com/inward/citedby.url?scp=85047200605&partnerID=8YFLogxK
M3 - Article
C2 - 29674764
AN - SCOPUS:85047200605
VL - 72
SP - 153
EP - 164
JO - Acta Medica Okayama
JF - Acta Medica Okayama
SN - 0386-300X
IS - 2
ER -