Dual-energy perfusion CT of non-diseased lung segments using dual-source CT. Correlation with perfusion SPECT
Creators
- 1. Yamaguchi Univ., Graduate School of Medicine, Ube, Yamaguchi (Japan)
- 2. Yamaguchi Univ., Hospital, Ube, Yamaguchi (Japan)
- 3. St Hill Hospital, Ube, Yamaguchi (Japan)
Description
The purpose of this study was to determine the utility of dual-energy perfusion CT (DEpCT) of non-diseased lung segments, using dual-source CT, in comparison with perfusion single-photon emission computed tomography (SPECT). 28 patients (18 male and 10 female; mean age 63 years; age range 18-86 years) underwent DEpCT and SPECT within a 3-day interval. The presence and location of perfusion defects in each segment of the lungs were evaluated. Perfusion defects were noted in 7 of 361 segments (1.9%) by DEpCT and in 19 of 361 segments (5.3%) by perfusion SPECT. DEpCT was in good agreement with perfusion SPECT for 338 of 361 segments (93.6%). Intraobserver agreement was also good, ranging from 93.4 to 93.6% (κ=0.64-0.75, p<0.01). For non-diseased lung segments, DEpCT correlated well with SPECT. (author)
Additional details
Publishing Information
- Journal Title
- Japanese Journal of Radiology (Print)
- Journal Volume
- 31
- Journal Issue
- 2
- Journal Page Range
- p. 99-104
- ISSN
- 1867-1071
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 44084741
- Subject category
- S62: RADIOLOGY AND NUCLEAR MEDICINE;
- Descriptors DEI
- ALBUMINS; BLOOD SERUM; CARCINOMAS; CAT SCANNING; CHEST; FISTULAE; IMAGE PROCESSING; IOPAMIDOL; LUNGS; MAMMARY GLANDS; PATIENTS; RESPIRATION; SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY; TECHNETIUM 99
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BIOLOGICAL MATERIALS; BLOOD; BLOOD PLASMA; BODY; BODY FLUIDS; COMPUTERIZED TOMOGRAPHY; CONTRAST MEDIA; DIAGNOSTIC TECHNIQUES; DISEASES; EMISSION COMPUTED TOMOGRAPHY; GLANDS; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MATERIALS; NEOPLASMS; NUCLEI; ODD-EVEN NUCLEI; ORGANIC COMPOUNDS; ORGANS; PATHOLOGICAL CHANGES; PROCESSING; PROTEINS; RADIOISOTOPES; RESPIRATORY SYSTEM; TECHNETIUM ISOTOPES; TOMOGRAPHY; YEARS LIVING RADIOISOTOPES