J Vet Sci.  2008 Dec;9(4):415-419. 10.4142/jvs.2008.9.4.415.

Ultrasonographic evaluation of renal dimension and resistive index in clinically healthy Korean domestic short-hair cats

• Park IC
• Lee HS
• Kim JT
• Nam SJ
• Choi R
• Oh KS
• Son CH
• Hyun C

• KMID: 1104918
• DOI: http://doi.org/10.4142/jvs.2008.9.4.415

Abstract

Renal length, height, width, resistive index (RI), size of cortex, and medulla were determined by renal ultrasonography in 50 healthy Korean domestic short-hair cats. In the sagittal plane, the renal length was 3.83 +/- 0.51 cm (mean +/- SD) in the left kidney and 3.96 +/- 0.48 cm in the right kidney, whereas the renal height was 2.42 +/- 0.27 cm in the left kidney and 2.36 +/- 0.28 cm in the right kidney. In the transverse plane, the renal height was 2.42 +/- 0.28 cm in the left kidney and 2.38 +/- 0.27 cm in the right kidney, whereas the renal width was: 2.65 +/- 0.35 cm in the left kidney and 2.63 +/- 0.31 cm in the right kidney. In the dorsal plane, the renal length was 3.84 +/- 0.53 cm in the left kidney and 3.97 +/- 0.54 cm in the right kidney, whereas the renal width was 2.65 +/- 0.34 cm in the left kidney and 2.66 +/- 0.33 cm in the right kidney. There were no significant differences (p > 0.05) among the same structure sizes measured in different planes. In the sagittal plane, the size of the renal cortex was 0.47 +/- 0.08 cm in the left kidney and 0.47 +/- 0.08 cm in the right kidney, whereas of the size of the renal medulla was 0.55 +/- 0.30 cm in the left kidney and 0.50 +/- 0.07 cm in the right kidney. RI evaluated by pulsed wave Doppler sonography was 0.52 +/- 0.05 in the left kidney and 0.55 +/- 0.05 in the right kidney. The actual renal dimensions determined by gross examination were not statistically different from those determined by ultrasonography. Furthermore the renal dimensions and RI were statistically correlated to the body weight of cats.

Keyword

kidney; Korean domestic cat; renal size; resistive index; ultrasonography

MeSH Terms

Animals
Cats/*anatomy & histology
Female
Kidney/*ultrasonography
Korea
Male

Figure

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  Fig. 1 Determination of renal length and height on the sagittal plane. When two bright parallel bars formed by cross sectioned pelvic diverticulum were clearly visible, the renal length and height were measured. L: length, H: height, C: cortex, M: medulla.

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  Fig. 2 Determination of renal length and height on the transverse plane. When the "C"-sign of the renal crest was clearly visible, the renal length and height were measured. H: height, W: width.

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  Fig. 3 Determination of renal length and height on the dorsal plane. L: length, W: width.

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  Fig. 4 Resistive index (RI) was measured by using pulsed wave Doppler echocardiography.

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