Abstract
Purpose: This study aimed to evaluate the impact of body habitus factors on image quality of low-tube voltage computed tomography (CT) during the hepatic arterial phase. Materials and Methods: Ninety-seven patients (66 men, 31 women; age range, 26-78 years) who underwent clinically indicated liver dynamic CTexamination were enrolled in the study. Analysis with 80-kVp CT and intermediate tube current (277-337 mA) was performed in the late hepatic arterial phase using a 320-detector row scanner with adaptive iterative dose reduction 3-dimensional reconstruction. Patient body habitus was measured using body weight (BW), body mass index (BMI), lateral width (LW) of the abdomen, and muscle volume (MV) of the abdominalwall. On hepatic arterial phase, the mean image noise and contrast-to-noise ratio (CNR) for the aorta and liver were assessed. The correlations between body habitus factors and image quality parameters were evaluated. Results: In all patients, MV showed the strongest correlation with image noise, followed by BWand LW(r = 0.684, 0.570, and 0.555, respectively). The BMI showed the fourth strongest correlation with image noise among all body habitus factors (r = 0.377). With respect to CNR of the aorta, MV and BWshowed the strongest inverse correlation (r = 0.590 and 0.600, respectively), followed by LWand BMI (r = 0.557 and 0.423, respectively). Regarding the CNR of the liver,MVshowed the strongest inverse correlation (r = 0.279), although the correlation efficiency was weak compared with other correlations. Conclusions: Among various body habitus factors, MV showed the strongest association with image noise and CNR in the hepatic arterial phase using 80-kVp CT.
| Original language | English |
|---|---|
| Pages (from-to) | 401-406 |
| Number of pages | 6 |
| Journal | Journal of Computer Assisted Tomography |
| Volume | 41 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2017 Jan 1 |
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Keywords
- Arterial phase
- Body mass index
- Body size
- Computed tomography
- Image quality
- Liver
- Low tube voltage
- Muscle volume
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
Cite this
Low-tube voltage computed tomography during hepatic arterial phase : The effect of body habitus on image quality. / Park, Yang Shin; Lee, Chang-Hee; Lee, Jongmee; Choi, Jae Woong; Kim, Kyeong Ah; Park, Cheol Min.
In: Journal of Computer Assisted Tomography, Vol. 41, No. 3, 01.01.2017, p. 401-406.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Low-tube voltage computed tomography during hepatic arterial phase
T2 - The effect of body habitus on image quality
AU - Park, Yang Shin
AU - Lee, Chang-Hee
AU - Lee, Jongmee
AU - Choi, Jae Woong
AU - Kim, Kyeong Ah
AU - Park, Cheol Min
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Purpose: This study aimed to evaluate the impact of body habitus factors on image quality of low-tube voltage computed tomography (CT) during the hepatic arterial phase. Materials and Methods: Ninety-seven patients (66 men, 31 women; age range, 26-78 years) who underwent clinically indicated liver dynamic CTexamination were enrolled in the study. Analysis with 80-kVp CT and intermediate tube current (277-337 mA) was performed in the late hepatic arterial phase using a 320-detector row scanner with adaptive iterative dose reduction 3-dimensional reconstruction. Patient body habitus was measured using body weight (BW), body mass index (BMI), lateral width (LW) of the abdomen, and muscle volume (MV) of the abdominalwall. On hepatic arterial phase, the mean image noise and contrast-to-noise ratio (CNR) for the aorta and liver were assessed. The correlations between body habitus factors and image quality parameters were evaluated. Results: In all patients, MV showed the strongest correlation with image noise, followed by BWand LW(r = 0.684, 0.570, and 0.555, respectively). The BMI showed the fourth strongest correlation with image noise among all body habitus factors (r = 0.377). With respect to CNR of the aorta, MV and BWshowed the strongest inverse correlation (r = 0.590 and 0.600, respectively), followed by LWand BMI (r = 0.557 and 0.423, respectively). Regarding the CNR of the liver,MVshowed the strongest inverse correlation (r = 0.279), although the correlation efficiency was weak compared with other correlations. Conclusions: Among various body habitus factors, MV showed the strongest association with image noise and CNR in the hepatic arterial phase using 80-kVp CT.
AB - Purpose: This study aimed to evaluate the impact of body habitus factors on image quality of low-tube voltage computed tomography (CT) during the hepatic arterial phase. Materials and Methods: Ninety-seven patients (66 men, 31 women; age range, 26-78 years) who underwent clinically indicated liver dynamic CTexamination were enrolled in the study. Analysis with 80-kVp CT and intermediate tube current (277-337 mA) was performed in the late hepatic arterial phase using a 320-detector row scanner with adaptive iterative dose reduction 3-dimensional reconstruction. Patient body habitus was measured using body weight (BW), body mass index (BMI), lateral width (LW) of the abdomen, and muscle volume (MV) of the abdominalwall. On hepatic arterial phase, the mean image noise and contrast-to-noise ratio (CNR) for the aorta and liver were assessed. The correlations between body habitus factors and image quality parameters were evaluated. Results: In all patients, MV showed the strongest correlation with image noise, followed by BWand LW(r = 0.684, 0.570, and 0.555, respectively). The BMI showed the fourth strongest correlation with image noise among all body habitus factors (r = 0.377). With respect to CNR of the aorta, MV and BWshowed the strongest inverse correlation (r = 0.590 and 0.600, respectively), followed by LWand BMI (r = 0.557 and 0.423, respectively). Regarding the CNR of the liver,MVshowed the strongest inverse correlation (r = 0.279), although the correlation efficiency was weak compared with other correlations. Conclusions: Among various body habitus factors, MV showed the strongest association with image noise and CNR in the hepatic arterial phase using 80-kVp CT.
KW - Arterial phase
KW - Body mass index
KW - Body size
KW - Computed tomography
KW - Image quality
KW - Liver
KW - Low tube voltage
KW - Muscle volume
UR - http://www.scopus.com/inward/record.url?scp=84996615367&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84996615367&partnerID=8YFLogxK
U2 - 10.1097/RCT.0000000000000519
DO - 10.1097/RCT.0000000000000519
M3 - Article
C2 - 27879528
AN - SCOPUS:84996615367
VL - 41
SP - 401
EP - 406
JO - Journal of Computer Assisted Tomography
JF - Journal of Computer Assisted Tomography
SN - 0363-8715
IS - 3
ER -