Feasibility of a fixed scan delay technique using a previous bolus tracking technique data for dynamic hepatic CT

Abstract Objective To compare the quality of contrast enhancement and hepatic CT images acquired using bolus tracking technique at two different time points and those acquired with fixed scan delay technique using a previous bolus tracking data. Materials and methods Fifty patients who underwent 3 d...

Full description

Saved in:
Bibliographic Details
Published in:European journal of radiology 2012-11, Vol.81 (11), p.2996-3001
Main Authors: Takumi, Koji, Fukukura, Yoshihiko, Shindo, Toshikazu, Kumagae, Yuichi, Tateyama, Akihiro, Kamiyama, Takuro, Nakajo, Masayuki
Format: Article
Language:English
Subjects:
Algorithms
Bolus tracking
Carcinoma, Hepatocellular - diagnostic imaging
Contrast Media - administration & dosage
Feasibility Studies
Female
HCC
Humans
Iodine - administration & dosage
Liver Neoplasms - diagnostic imaging
Male
Radiographic Image Enhancement - methods
Radiographic Image Interpretation, Computer-Assisted - methods
Radiology
Reproducibility of Results
Sensitivity and Specificity
Tomography, X-Ray Computed - methods
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Abstract Objective To compare the quality of contrast enhancement and hepatic CT images acquired using bolus tracking technique at two different time points and those acquired with fixed scan delay technique using a previous bolus tracking data. Materials and methods Fifty patients who underwent 3 different hepatic CT exams (25-s fixed injection of 600 mg iodine (I)/kg or 100 mL of 370 mg I/mL nonionic contrast medium) were enrolled. The first and second exams were performed with a bolus tracking technique. The third exam was performed with a fixed scan delay technique using the first exam data. Differences in attenuation values in the abdominal organs were examined and evaluated visually on hepatic arterial phase images. Results There was no significant difference in the mean 50-HU threshold times between the first and second bolus tracking exams with intra-patient differences between them (1.3 ± 0.9 s). No significant intra-patient differences were noted in organ attenuation and visual evaluation on hepatic arterial phase images between the 3 exams. Conclusion The fixed scan delay technique using a previous bolus tracking data is feasible for hepatic CT exams to follow up hepatocellular carcinoma.
ISSN:0720-048X
1872-7727
DOI:10.1016/j.ejrad.2012.02.022