Dual-source dual-energy CT angiography with virtual non-enhanced images and iodine map for active gastrointestinal bleeding: Image quality, radiation dose and diagnostic performance

Highlights • GIB is a common gastrointestinal emergency with a high mortality rate. • Detection and localization of GIB source are important for imaging modality. • DSDECTA using a dual-phase scan protocol is clinically feasible. • DSDECTA with VNE and iodine map images can diagnose the active GIB s...

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Bibliographic Details
Published in:European journal of radiology 2015-05, Vol.84 (5), p.884-891
Main Authors: Sun, Hao, Hou, Xin-Yi, Xue, Hua-Dan, Li, Xiao-Guang, Jin, Zheng-Yu, Qian, Jia-Ming, Yu, Jian-Chun, Zhu, Hua-Dong
Format: Article
Language:English
Subjects:
Adolescent
Adult
Aged
Angiography, Digital Subtraction - instrumentation
Angiography, Digital Subtraction - methods
Area Under Curve
Contrast Media
Dual-source dual-energy CT
Endoscopy, Gastrointestinal
Feasibility Studies
Female
Gastrointestinal bleeding
Gastrointestinal Hemorrhage - diagnostic imaging
Gastrointestinal Hemorrhage - pathology
Humans
Iodine
Iodine map
Male
Middle Aged
Portal Vein - diagnostic imaging
Portal Vein - pathology
Predictive Value of Tests
Radiation Dosage
Radiation dose
Radiographic Image Interpretation, Computer-Assisted
Radiography, Dual-Energy Scanned Projection - methods
Radiology
ROC Curve
Severity of Illness Index
Signal-To-Noise Ratio
Tomography, X-Ray Computed - methods
Virtual non-enhance
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Description
Summary:Highlights • GIB is a common gastrointestinal emergency with a high mortality rate. • Detection and localization of GIB source are important for imaging modality. • DSDECTA using a dual-phase scan protocol is clinically feasible. • DSDECTA with VNE and iodine map images can diagnose the active GIB source accurately. • DSDECTA can reduce radiation dose compared with conventional CT examination in GIB.
ISSN:0720-048X
1872-7727
DOI:10.1016/j.ejrad.2015.01.013