HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text All Versions of this Article: 2282011554v1 228/2/389    most recent Submit a response Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Toledo, N. S. G. Articles by Mies, S. Search for Related Content PubMed PubMed Citation Articles by Toledo, N. S. G. Articles by Mies, S.

Right Hemidiaphragmatic Mobility: Assessment with US Measurement of Craniocaudal Displacement of Left Branches of Portal Vein¹

¹ From the Liver Unit (N.S.G.T., P.C.B.M., O.I.P., S.M.) and Department of Radiology (S.K.K.), University of São Paulo Medical School, Brazil. Received September 19, 2001; revision requested November 26; final revision received November 25, 2002; accepted December 19. Supported by FAPESP grant 99/10418-3. Address correspondence to N.S.G.T., R. Luxemburgo, 113-CEP, 86046-410 Londrina, Brazil (e-mail: tolecosta@hotmail.com).

PURPOSE: To evaluate the correlation and agreement between ultrasonographic (US) measurement of craniocaudal displacement of the left intrahepatic branches of the portal vein and radiographic measurement of right hemidiaphragmatic mobility.

MATERIALS AND METHODS: Fifty-one patients with indications for abdominal angiography or percutaneous cholangiography prospectively underwent radiographic evaluation of right hemidiaphragmatic mobility and B-mode US measurement of craniocaudal displacement of the left intrahepatic branches of the portal vein. US was performed by using a 3.5-MHz convex transducer in a right subcostal position with a longitudinal orientation. Statistical analyses were performed by using linear regression, paired Student t test, and Bland-Altman analyses.

RESULTS: The correlation between the US and radiographic measurements was found to be linear: hemidiaphragmatic mobility = (-1.562 + 1.032) x portal vein branch displacement (r = 0.651, P < .001). The mean craniocaudal displacement of the intrahepatic branches of the portal vein measured at US was 35.2 mm ± 10.7 (SD). The mean right hemidiaphragmatic mobility measured at radiography was 34.8 mm ± 17.0. The mean difference between the two measurements was not statistically significant (0.4 mm ± 12.9, P = .807).

CONCLUSION: US measurement of craniocaudal displacement of the left intrahepatic branches of the portal vein can be used for indirect assessment of right hemidiaphragmatic mobility.

© RSNA, 2003

Index terms: Diaphragm, 66.12989, 66.155, 66.91 • Hepatic veins, US, 957.12989 • Liver, US, 761.12989 • Ultrasound (US), physics, 761.12989, 957.12989

This article has been cited by other articles:

				N. S. G. Toledo, S. K. Kodaira, P. C. B. Massarollo, O. I. Pereira, J. C. Dalmas, G. G. Cerri, and C. A. Buchpiguel Left Hemidiaphragmatic Mobility: Assessment With Ultrasonographic Measurement of the Craniocaudal Displacement of the Splenic Hilum and the Inferior Pole of the Spleen J. Ultrasound Med., January 1, 2006; 25(1): 41 - 49. [Abstract] [Full Text] [PDF]