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

This Article Figures Only Full Text Full Text (PDF) 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 Bakker, J. Articles by Beek, F. J. A. Search for Related Content PubMed PubMed Citation Articles by Bakker, J. Articles by Beek, F. J. A.

Renal Volume Measurements: Accuracy and Repeatability of US Compared with That of MR Imaging¹

¹ From the Departments of Radiology (J.B., M.O., R.K., F.J.A.B.) and Nephrology (J.J.B.), University Hospital Utrecht, Heidelberglaan 100, 3584 CX Utrecht, the Netherlands; the Department of Radiology, University of Virginia Health Sciences Center, Charlottesville (E.E.d.L.); and the Julius Centre for Patient Oriented Research, University Utrecht, the Netherlands (K.G.M.M.). Received March 31, 1998; revision requested June 16; revision received August 27; accepted January 20, 1999. Address reprint requests to J.B.

PURPOSE: To determine the accuracy and repeatability of ultrasonography (US) with the ellipsoid formula in calculating the renal volume.

MATERIALS AND METHODS: The renal volumes in 20 volunteers aged 19–51 years were determined by using US with the ellipsoid formula and magnetic resonance (MR) imaging with the voxel-count method by two independent observers for each modality. The observers performed all measurements twice, with an interval between the first and second examinations. The voxel-count method was the reference standard. Repeatability was evaluated by calculating the SD of the difference (method of Bland and Altman).

RESULTS: Renal volume was underestimated with US by 45 mL (25%) on average. A comparable underestimation was found when the ellipsoid formula was applied to MR images. This indicates that the inaccuracy of US renal volume measurements (a) occured because the kidney does not resemble an ellipsoid and (b) was not primarily related to the imaging modality. Intra- and interobserver variations in US volume measurements were poor; the SD of the difference was 21–32 mL. For comparison, the SD of the difference in reference-standard measurements was 5–10 mL.

CONCLUSION: Use of US with the ellipsoid formula is not appropriate for accurate and reproducible calculation of renal volume.

Index terms: Kidney, MR, 81.121416 • Kidney, US, 81.12989, 81.92 • Magnetic resonance (MR), volume measurement, 81.121416 • Ultrasound (US), comparative studies, 81.12989

This article has been cited by other articles:

				H. C. Kim, D. M. Yang, S. H. Lee, and Y. D. Cho Usefulness of Renal Volume Measurements Obtained by a 3-Dimensional Sonographic Transducer With Matrix Electronic Arrays J. Ultrasound Med., December 1, 2008; 27(12): 1673 - 1681. [Abstract] [Full Text] [PDF]

				P.-H. Vivier, M. Dolores, I. Gardin, P. Zhang, C. Petitjean, and J.-N. Dacher In Vitro Assessment of a 3D Segmentation Algorithm Based on the Belief Functions Theory in Calculating Renal Volumes by MRI Am. J. Roentgenol., September 1, 2008; 191(3): W127 - W134. [Abstract] [Full Text] [PDF]

				S J Gandy, K Armoogum, R S Nicholas, T B McLeay, and J G Houston A clinical MRI investigation of the relationship between kidney volume measurements and renal function in patients with renovascular disease Br. J. Radiol., January 1, 2007; 80(949): 12 - 20. [Abstract] [Full Text] [PDF]

				B. Cheong, R. Muthupillai, M. F. Rubin, and S. D. Flamm Normal Values for Renal Length and Volume as Measured by Magnetic Resonance Imaging Clin. J. Am. Soc. Nephrol., January 1, 2007; 2(1): 38 - 45. [Abstract] [Full Text] [PDF]

				G. Zerbini, R. Bonfanti, F. Meschi, E. Bognetti, P. L. Paesano, L. Gianolli, M. Querques, A. Maestroni, G. Calori, A. Del Maschio, et al. Persistent Renal Hypertrophy and Faster Decline of Glomerular Filtration Rate Precede the Development of Microalbuminuria in Type 1 Diabetes Diabetes, September 1, 2006; 55(9): 2620 - 2625. [Abstract] [Full Text] [PDF]

				W. L. Henrich, R. L. Clark, J. P. Kelly, V. M. Buckalew, A. Fenves, W. F. Finn, J. I. Shapiro, P. L. Kimmel, P. Eggers, L. E. Agodoa, et al. Non-Contrast-Enhanced Computerized Tomography and Analgesic-Related Kidney Disease: Report of the National Analgesic Nephropathy Study J. Am. Soc. Nephrol., May 1, 2006; 17(5): 1472 - 1480. [Abstract] [Full Text] [PDF]

				S. W. Farraher, H. Jara, K. J. Chang, A. Hou, and J. A. Soto Liver and Spleen Volumetry with Quantitative MR Imaging and Dual-Space Clustering Segmentation Radiology, October 1, 2005; 237(1): 322 - 328. [Abstract] [Full Text] [PDF]

				S. W. van den Dool, M. N. Wasser, J. W. de Fijter, J. Hoekstra, and R. J. van der Geest Functional Renal Volume: Quantitative Analysis at Gadolinium-enhanced MR Angiography--Feasibility Study in Healthy Potential Kidney Donors Radiology, July 1, 2005; 236(1): 189 - 195. [Abstract] [Full Text] [PDF]

				L. Hermoye, I. Laamari-Azjal, Z. Cao, L. Annet, J. Lerut, B. M. Dawant, and B. E. Van Beers Liver Segmentation in Living Liver Transplant Donors: Comparison of Semiautomatic and Manual Methods Radiology, January 1, 2005; 234(1): 171 - 178. [Abstract] [Full Text] [PDF]

				E Widjaja, J W Oxtoby, T L Hale, P W Jones, P N Harden, and I W McCall Ultrasound measured renal length versus low dose CT volume in predicting single kidney glomerular filtration rate Br. J. Radiol., September 1, 2004; 77(921): 759 - 764. [Abstract] [Full Text] [PDF]

				H. S. Teh, E. S. Ang, W. C. Wong, S. B. Tan, A. G. S. Tan, S. M. Chng, M. B. K. Lin, and J. S. K. Goh MR Renography Using a Dynamic Gradient-Echo Sequence and Low-Dose Gadopentetate Dimeglumine as an Alternative to Radionuclide Renography Am. J. Roentgenol., August 1, 2003; 181(2): 441 - 450. [Abstract] [Full Text] [PDF]