Optimal needle size for renal biopsy: in vitro and in vivo evaluation.

Mostbeck, G.; Wittich, G R; Derfler, Kurt; Ulrich, W; Walter, Reinhard; Herold, C.; Haller, J.Alex; Tscholakoff, D

doi:10.1148/radiology.173.3.2813792

Cited by 35 publications

(21 citation statements)

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“…However, these scores do not correlate with creatinine values and histologic findings. Although focal infarcts are somewhat better delineated with POS than with COl, the conspicuity of biopsy-related AV fistulas on PDS is inferior to that obtained with COL A B Figure 5 Postbtopsy AV fistula demonstroted by PDS (A) and COl (8). Using PDS, renal allogr,lft demonstrates score 0 (cortical bJushl.…”

Section: Resultsmentioning

confidence: 96%

Power Doppler versus color Doppler imaging in renal allograft evaluation.

Turetschek

Našel²,

Wunderbaldinger³

et al. 1996

Journal of Ultrasound in Medicine

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The purpose of this study was to evaluate the impact of PDS compared to conventional CDI in the followup of 72 renal allograft patients. Renal allograft vascularization, assessed by PDS and COl, was scored from 0 to 4, where 0 was the cortical "blush" and 4 was residual central perfusion. These scores were correlated with the resistive index, serum creatinine levels, hematocrit, and, in 35 cases, biopsy results. PDS scores of renal perfusion were one grade lower than CDI scores in 59 of 72 patients and two grades lower in two of 72 patients. A statistically significant correlation was found between PDS scores and the R enal transplantations are performed with increasing frequency, which has Jed to a greater demand for the detection of vascu- Address correspondence and reprint requests to K. Turetschek, MD, Department of Radiology, University of Vienna, Wahringerglirtel18·20, 1090 Vienna, Austria. RI (r2 = 0.6, P < 0.05). However, no significant correlation was found between PDS scores and creatinine levels or hematocrit values. PDS scores are not related to histologic findings in renal allograft dysfunction. Overall, five biopsy-related arteriovenous fistulas were detected, two of which were missed on the initial PDS examination. In conclusion, PDS provides more complete visualization of the renal allograft vessel tree than CDI. However, biopsy-related arteriovenous fistulas are better seen by CDI. KEY WORDS: Ultrasonography, comparative studies; Power Doppler sonography; Kidney, transplantation. lar complications associated with these grafts.J-3 COl has been shown to be an accurate and reliable noninvasive technique for the evaluation of the hemodynamic characteristics of renal transplants.l CDI is based on the mean Doppler frequency shift, whereas PDS calculates the integrated energy of all flow signals.4 This energy is proportional to the area under the Doppler power spectrum. It has been demonstrated in native kidneys that visualization of even the most peripheral parts of the renal vessel tree by PDS is superior to CDJ.4,S Because some pathologic processes of renal allografts, such as acute rejection, affect primarily the capillary bed and small vessels, earlier and easier detection of hemodynamic alterations might be expected with PDS as compared to CDI. This could permit early treatment of these patients. Thus, our study was performed to compare PDS to CDI in the postoperative follow-up of renal allografts.

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Section: Resultsmentioning

confidence: 96%

Power Doppler versus color Doppler imaging in renal allograft evaluation.

Turetschek

Našel²,

Wunderbaldinger³

et al. 1996

Journal of Ultrasound in Medicine

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“…However, the present study demonstrated that there still remain several points to be further improved. 8,9 In 394 renal biopsies, 10 patients (2.5%) needed an extended rest period in bed. Macrohematuria, which occurred in 29 patients (7.4%), was transient (5.8%) or long-lasting (1.5%).…”

Section: Discussionmentioning

confidence: 99%

Risk factors for bleeding complications in percutaneous renal biopsy

2005

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“…A great deal of controversy exists concerning the size of the needle that should be used for renal biopsy (3,8,11,13,15,17,20,21,25,(29)(30)(31)(32)35). To our knowledge no comparative studies of the Biopty Instrument dealing with the use of 1.2-mm versus 2.0-mm needles in terms of diagnostic yield and rate of complications have been published.…”

Section: Discussionmentioning

confidence: 99%

Ultrasound-Guided Renal Biopsy with Biopsy Gun Technique — Efficacy and Complications

et al. 1995

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One hundred and thirty-one ultrasound-guided renal biopsies performed in 127 patients with automated spring-loaded biopsy technique were evaluated. Adequate tissue for histologic diagnosis was obtained in 92% of the procedures (94% of the patients). The mean glomerular yield was 16.8 glomeruli. Complications were seen in 21% of the patients, 18% having minor and 3% having major complications. Patients with severe hypertension had significantly more complications than the rest of the patients. The rate of complications in patients who had 3 or 4 biopsy passes was not increased compared to patients who had one or 2 biopsy passes. Thus, this study indicates that the risk of complications and the safety of the procedure is not influenced by increasing the number of biopsy passes in order to obtain representative specimens.

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Optimal needle size for renal biopsy: in vitro and in vivo evaluation.

Cited by 35 publications

References 0 publications

Power Doppler versus color Doppler imaging in renal allograft evaluation.

Power Doppler versus color Doppler imaging in renal allograft evaluation.

Risk factors for bleeding complications in percutaneous renal biopsy

Ultrasound-Guided Renal Biopsy with Biopsy Gun Technique — Efficacy and Complications

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