Low-tube voltage computed tomography during hepatic arterial phase: The effect of body habitus on image quality

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)401-406
Number of pages6
JournalJournal of Computer Assisted Tomography
Volume41
Issue number3
DOIs
Publication statusPublished - 2017 Jan 1

Fingerprint

Tomography
Liver
Noise
Muscles
Body Mass Index
Aorta
Abdomen
Body Weight

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

@article{81eb70f11e12422d9cc155c52b0b59b2,
title = "Low-tube voltage computed tomography during hepatic arterial phase: The effect of body habitus on image quality",
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.",
keywords = "Arterial phase, Body mass index, Body size, Computed tomography, Image quality, Liver, Low tube voltage, Muscle volume",
author = "Park, {Yang Shin} and Chang-Hee Lee and Jongmee Lee and Choi, {Jae Woong} and Kim, {Kyeong Ah} and Park, {Cheol Min}",
year = "2017",
month = "1",
day = "1",
doi = "10.1097/RCT.0000000000000519",
language = "English",
volume = "41",
pages = "401--406",
journal = "Journal of Computer Assisted Tomography",
issn = "0363-8715",
publisher = "Lippincott Williams and Wilkins",
number = "3",

}

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 -