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Effect of thin overlapping reconstruction on the attenuation of small (< or = 3 cm) renal cysts in the nephrographic phase of MDCT: a phantom study

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dc.contributor.authorKim, Sun Ho-
dc.contributor.authorKim, Seung Hyup-
dc.date.accessioned2009-10-01T02:56:15Z-
dc.date.available2009-10-01T02:56:15Z-
dc.date.issued2006-12-05-
dc.identifier.citationKorean J Radiol 2006;7(4):275-80.en
dc.identifier.issn1229-6929 (Print)-
dc.identifier.issn2005-8330 (Electronic)-
dc.identifier.urihttp://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=17143031-
dc.identifier.urihttp://hdl.handle.net/10371/10004-
dc.descriptionRoMEO에 미등재en
dc.description.abstractOBJECTIVE: To evaluate the effect of thin overlapping reconstruction on the attenuation of small (< or =3 cm) renal cysts in the nephrographic phase of multidetector CT (MDCT). MATERIALS AND METHODS: We scanned a phantom kidney containing spheres of various sizes (10, 20, and 30 mm) using both 4- and 16-channel MDCT scanners, and reconstructed images with various slice thickness (T, mm) and intervals (I, mm). The attenuation increase (AI) was measured for each sphere in 240-HU diluted solution of contrast material and compared with the attenuation in 35-HU solution. RESULTS: On the 4-channel MDCT, thin overlapping reconstruction (T/I = 3/1, compared with 5/5) lowered the AI as much as 17 HU in the 10 mm-sphere and 6 HU in the 20 mm-sphere (p < 0.05). Thin slicing alone was also effective; however overlapping alone was not. On the 16-channel MDCT, AI in the 10 mm-sphere was significantly lower than on the 4-channel MDCT with T/I = 5/5 (p < 0.05), however thinner slicing or overlapping did not affect the attenuation significantly in all of the spheres. CONCLUSION: The effect of thin overlapping reconstruction on minimizing falsely elevated attenuation in the nephrographic phase was significant only in cysts < or = 20 mm on the 4-channel MDCT.en
dc.language.isoen-
dc.publisherThe Korean Radiological Societyen
dc.subjectContrast Mediaen
dc.subjectIohexol/analogs & derivatives/diagnostic useen
dc.subject*Radiographic Image Interpretation, Computer-Assisteden
dc.subjectKidneyen
dc.subjectCysten
dc.subjectComputed tomographyen
dc.subjectPseudoenhancementen
dc.titleEffect of thin overlapping reconstruction on the attenuation of small (< or = 3 cm) renal cysts in the nephrographic phase of MDCT: a phantom studyen
dc.typeArticleen
dc.contributor.AlternativeAuthor김선호-
dc.contributor.AlternativeAuthor김승협-
dc.identifier.doi10.3348/kjr.2006.7.4.275-
Appears in Collections:
College of Medicine/School of Medicine (의과대학/대학원)Radiology (영상의학전공)Journal Papers (저널논문_영상의학전공)
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