Stomach virtual non-enhanced CT with second-generation, dual-energy CT: a preliminary study

To compare the true non-enhanced (TNE) and virtual non-enhanced (VNE) data sets in patients who underwent gastric preoperative dual-energy CT (DECT) and to evaluate potential radiation dose reduction by omitting a TNE scan. A total of 74 patients underwent gastric DECT. The mean CT values, length, i...

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Bibliographic Details
Published in:PloS one 2014-11, Vol.9 (11), p.e112295-e112295
Main Authors: Shi, Lei, Yan, Fuhua, Pan, Zilai, Liu, Bo, Liu, Huanhuan, Wang, Baisong, Zhang, Huan, Yu, Yingyan
Format: Article
Language:English
Subjects:
Abdomen
Adult
Aged
Aged, 80 and over
Aorta
Computed tomography
Contrast agents
Datasets
Diagnostic systems
Drug dosages
Energy
Female
Gastric cancer
Humans
Image quality
Iodine
Liver
Lymph nodes
Male
Medical imaging
Medicine
Medicine and Health Sciences
Middle Aged
Patients
Quality
Radiation
Radiation Dosage
Radiography, Dual-Energy Scanned Projection - methods
Scanners
Statistical analysis
Stomach
Stomach cancer
Stomach Neoplasms - diagnostic imaging
Studies
Tomography
Tomography, X-Ray Computed - methods
Tumors
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Summary:To compare the true non-enhanced (TNE) and virtual non-enhanced (VNE) data sets in patients who underwent gastric preoperative dual-energy CT (DECT) and to evaluate potential radiation dose reduction by omitting a TNE scan. A total of 74 patients underwent gastric DECT. The mean CT values, length, image quality and effective radiation doses for VNE and TNE images were compared. There was no statistical difference in maximal thickness of gastric tumors and maximal diameter of enlarged lymph nodes among the TNE and VNE images (P>0.05). The mean CT value differences between TNE and VNE were statistically significant for all tissue types, except for aorta attenuation measurements (P
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0112295