Abstract
The purpose of this study was to evaluate whether experimental fine-cell detector computed tomography with a 0.3125 mm cell (0.3 mm cell CT) can improve the detection of coronary vessel walls compared with conventional 64-slice computed tomography with a 0.625 mm cell (0.6 mm cell CT). A coronary vessel wall phantom was scanned using 0.6 mm cell CT and 0.3 mm cell CT. The data for 0.3 mm cell CT were obtained using four protocols: a radiation dose equal, double, triple or quadruple that were used in the 0.6 mm cell CT protocol. The detectable size of the vessel wall was assessed based on the first and second derivative functions, and the minimum measurable values were compared using a paired t-test. As a result, the minimum detectable wall thickness of 0.6 mm cell CT (1.5 mm) was significantly larger than that of 0.3 mm cell CT performed using the triple- and quadruple-dose protocols (0.9 mm) and the double-dose protocol (1.1 mm). The difference in the minimum detectable vessel wall thickness measured using 0.6 mm cell CT (1.5 0.1 mm) and 0.3 mm cell CT (0.9 0.1 mm, 1.1 0.2 mm) was significant (p < 0.01). We concluded that 0.3 mm cell CT improved the detection of coronary vessel walls when a more than double-dose protocol was used compared with 0.6 mm cell CT.
| Original language | English |
|---|---|
| Pages (from-to) | 5235-5247 |
| Number of pages | 13 |
| Journal | Physics in Medicine and Biology |
| Volume | 56 |
| Issue number | 16 |
| DOIs | |
| Publication status | Published - 2011 Aug 21 |
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ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
- Radiological and Ultrasound Technology
Cite this
Detection of a coronary artery vessel wall : Performance of 0.3 mm fine-cell detector computed tomography - A phantom study. / Yamada, Minoru; Jinzaki, Masahiro; Tanami, Yutaka; Matsumoto, Kazuhiro; Ueno, Akihisa; Nukui, Masatake; Imai, Yasuhiro; Ishihara, Yotaro; Nishide, Akihiko; Sasaki, Kosuke; Kuribayashi, Sachio.
In: Physics in Medicine and Biology, Vol. 56, No. 16, 21.08.2011, p. 5235-5247.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Detection of a coronary artery vessel wall
T2 - Performance of 0.3 mm fine-cell detector computed tomography - A phantom study
AU - Yamada, Minoru
AU - Jinzaki, Masahiro
AU - Tanami, Yutaka
AU - Matsumoto, Kazuhiro
AU - Ueno, Akihisa
AU - Nukui, Masatake
AU - Imai, Yasuhiro
AU - Ishihara, Yotaro
AU - Nishide, Akihiko
AU - Sasaki, Kosuke
AU - Kuribayashi, Sachio
PY - 2011/8/21
Y1 - 2011/8/21
N2 - The purpose of this study was to evaluate whether experimental fine-cell detector computed tomography with a 0.3125 mm cell (0.3 mm cell CT) can improve the detection of coronary vessel walls compared with conventional 64-slice computed tomography with a 0.625 mm cell (0.6 mm cell CT). A coronary vessel wall phantom was scanned using 0.6 mm cell CT and 0.3 mm cell CT. The data for 0.3 mm cell CT were obtained using four protocols: a radiation dose equal, double, triple or quadruple that were used in the 0.6 mm cell CT protocol. The detectable size of the vessel wall was assessed based on the first and second derivative functions, and the minimum measurable values were compared using a paired t-test. As a result, the minimum detectable wall thickness of 0.6 mm cell CT (1.5 mm) was significantly larger than that of 0.3 mm cell CT performed using the triple- and quadruple-dose protocols (0.9 mm) and the double-dose protocol (1.1 mm). The difference in the minimum detectable vessel wall thickness measured using 0.6 mm cell CT (1.5 0.1 mm) and 0.3 mm cell CT (0.9 0.1 mm, 1.1 0.2 mm) was significant (p < 0.01). We concluded that 0.3 mm cell CT improved the detection of coronary vessel walls when a more than double-dose protocol was used compared with 0.6 mm cell CT.
AB - The purpose of this study was to evaluate whether experimental fine-cell detector computed tomography with a 0.3125 mm cell (0.3 mm cell CT) can improve the detection of coronary vessel walls compared with conventional 64-slice computed tomography with a 0.625 mm cell (0.6 mm cell CT). A coronary vessel wall phantom was scanned using 0.6 mm cell CT and 0.3 mm cell CT. The data for 0.3 mm cell CT were obtained using four protocols: a radiation dose equal, double, triple or quadruple that were used in the 0.6 mm cell CT protocol. The detectable size of the vessel wall was assessed based on the first and second derivative functions, and the minimum measurable values were compared using a paired t-test. As a result, the minimum detectable wall thickness of 0.6 mm cell CT (1.5 mm) was significantly larger than that of 0.3 mm cell CT performed using the triple- and quadruple-dose protocols (0.9 mm) and the double-dose protocol (1.1 mm). The difference in the minimum detectable vessel wall thickness measured using 0.6 mm cell CT (1.5 0.1 mm) and 0.3 mm cell CT (0.9 0.1 mm, 1.1 0.2 mm) was significant (p < 0.01). We concluded that 0.3 mm cell CT improved the detection of coronary vessel walls when a more than double-dose protocol was used compared with 0.6 mm cell CT.
UR - http://www.scopus.com/inward/record.url?scp=79961062506&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79961062506&partnerID=8YFLogxK
U2 - 10.1088/0031-9155/56/16/010
DO - 10.1088/0031-9155/56/16/010
M3 - Article
C2 - 21791729
AN - SCOPUS:79961062506
VL - 56
SP - 5235
EP - 5247
JO - Physics in Medicine and Biology
JF - Physics in Medicine and Biology
SN - 0031-9155
IS - 16
ER -