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Chinese Journal of Medical Ultrasound (Electronic Edition) ›› 2015, Vol. 12 ›› Issue (07): 559-563. doi: 10.3877/cma.j.issn.1672-6448.2015.05.013

Special Issue:

• Genitourinary Ultrasound • Previous Articles     Next Articles

Preliminary application of virtual touch tissue quantification imaging in diagnosis of IgA nephropathy

Xiaoning Liang1, Ruijun Guo1,(), Shuo Li1, Ying Zhang1, Yan Zhang1, Hong Sun1   

  1. 1. Department of Ultrasound, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
  • Received:2014-09-17 Online:2015-07-01 Published:2015-07-01
  • Contact: Ruijun Guo
  • About author:
    Corresponding authors: Guo Ruijun, Email:

Abstract:

Objective

To evaluate the value of virtual touch quantization (VTQ) imaging in diagnosis of IgA nephropathy.

Methods

The clinical data of 85 patients with IgA nephropathy were analyzed, who were treated in Capital Medical University Affiliate Beijing Chaoyang Hospital from December 2013 to July 2014. The patients who was with critical condition, unable to cooperate and with other pathological types were excluded. Finally 108 kidneys of IgA nephropathy with mesangial cell hyperplasia in 54 cases were included into the study. Meanwhile 108 kidneys in 54 volunteers who took the health physical examination in our hospital were taken as healthy controls. VTQ was performed in middle part of kidney and the measurements of shear wave velocity (SWV) was recorded. The mean SWV of renal parenchyma and collecting system was compared in different groups.

Results

The mean SWV measurement of renal parenchyma and collecting system in control group were (2.13±0.13) m/s, (1.15±0.02) m/s; the results in IgA nephropathy group were (3.07±0.62) m/s, (1.12±0.29) m/s. The mean SWV of renal collecting system was lower than that of renal parenchyma (t=-14.481, P<0.001). The mean SWV of renal parenchyma and collecting system in IgA Nephropathy group was higher than that in control group (t=-54.01, P<0.001). The renal parenchyma VTQ value positively correlated with the degree of renal insufficiency for patients with chronic kidney disease (CKD) (F=798.70, P<0.001). The interlobular arterial resistance index (RI) increased gradually with CKD stage, but no statistical differences were found.

Conclusion

In terms of early diagnosis and clinical staging, VTQ technology has some diagnostic value in evaluation of renal parenchymal damage for patients with IgA nephropathy.

Key words: Ultrasonography, Kidney failure, chronic, Nephrosis, Glomerulonephritis, IGA

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