Comparison of direct radionuclide cystography and voiding direct cystography in the detection of vesicoureteral reflux

Sükan, Aysun; Bayazıt, Aysun Karabay; Ki̇bar, Mustafa; Noyan, Aytül; Soyupak, Süreyya; Yapar, Zeynep; Anarat, Ali

doi:10.1007/bf03006667

Cited by 31 publications

(17 citation statements)

References 12 publications

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“…There were no false-negatives detected by iMRVC, giving a high sensitivity, but 3 renal units were considered positive on iMRVC where they were negative on MCUG, giving a 78% specificity. There are several possible reasons for this discrepancy, whether technical or physiological: VUR may be a transient phenomenon, as techniques such as DRC have different sensitivity to MCUG [24], and repeated bladder filling/voiding cycles increases VUR detection: a second cycle can increase VUR detection by between 12% (CEUS [29]) and 20% (during MCUG [7,9]). The sensitivity of a single-cycle MCUG may be low, but many centres (including ours) perform only one cycle due to concerns about dose, at the expense of potential false-negative results [6], despite three cycles advised in recent European recommendations [30].…”

Section: Discussionmentioning

confidence: 96%

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Interactive magnetic resonance voiding cystourethrography (iMRVC) for vesicoureteric reflux (VUR) in unsedated infants: a feasibility study

et al. 2011

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Section: Discussionmentioning

confidence: 96%

“…Direct Radionuclide Cystography (DRC) gives a 10-fold lower radiation burden to the gonads than MCUG, allows continuous recording during the study and may be more sensitive in a younger age group than MCUG [24]. However, like CEUS and iMRVC, DRC requires bladder catheterisation and therefore a trauma and infection risk.…”

Section: Discussionmentioning

confidence: 98%

Interactive magnetic resonance voiding cystourethrography (iMRVC) for vesicoureteric reflux (VUR) in unsedated infants: a feasibility study

et al. 2011

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“…In the diagnosis of VUR the most important modality is voiding cystoureterogram however,, this is an invasive method with high radiation dose. Direct radionuclide cystography is a sensitive method and has lower radiation dose compared to voiding [7] however,, do not provide anatomical detail thus not preferred as first imaging method in the male patients at the first diagnosis. In a recent comparative study the direct radionuclide methods has been found to be more correlated with DMSA findings and clinical results [8].…”

Section: Discussionmentioning

confidence: 99%

Ureter Visualization on Tc-99m DMSA Scintigraphy in Pediatric Patients

Kara¹,

Zp²,

Mk³

2017

J Kidney

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Purpose: The aim of this study is to investigate possible reasons of ureter visualization on Tc-99m DMSA scintigraphy. Methods:The planar static renal scintigraphies of pediatric patients (n=2290) who attended for any reason between January 2009 and May 2015 were analyzed retrospectively by the same nuclear medicine physician. In our analysis 15 patients (12 Male (M), 3 Female (F); 0-12, mean: 4 ± 3, 8 years old) were included in the study due to bilateral or unilateral ureter visualization on Tc-99m DMSA scintigraphy. Results:In the visual assessment of scintigraphies, there were 7 patients with bilateral visualization and 8 patients (right in 4 patients, left in 4 patients) with unilateral. Additionally increased background activity was observed in two patients. Cortical defects and/or atrophy of kidneys were observed in 10 (66%) of the patients. The background pathology in these patients were posterior urethral valve (n=3), neurogenic bladder due to meningomyelocele (n=4), vesicoureteral reflux (n=3), urethral atresia (n=2), ureterovesical obstruction (n=1) and unknown (n=2). Conclusion:Ureter visualization on Tc-99m DMSA imaging usually accompanies severe kidney damage and ureteral or bladder pathology. Additionally this finding may point out the patients who could not be corrected completely by the surgical way but this issue has to be evaluated by future studies.

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“…It neither tries to endorse nor contradict the already established features and roles of VCUG or conventional DRC. [9–11]…”

Section: Discussionmentioning

confidence: 99%

Vesicoureteric reflux: Evaluation by bladder volume graded direct radionuclide cystogram

Agrawal¹,

Rangarajan²,

Kamath³

et al. 2009

J Indian Assoc Pediatr Surg

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Aim:Evaluation of vesicoureteric reflux (VUR) in children by bladder volume graded direct radionuclide cystogram (BVG DRC). This technique allows detection of VUR at different bladder volume grades.Materials and Methods:In this prospective study, 33 patients (66 renal units) with suspected vesicoureteric reflux were subjected to a voiding cystourethrogram (VCUG) and BVG DRC. The patients were assessed further with radioisotope renal scans for renal cortical scars.Results:Twenty-two patients and 36 renal units were found to have VUR in either of the reflux studies. A VCUG was able to detect 20 units (55.50%) and a BVG DRC was able to detect 35 units (97.2%). A VCUG had a test accuracy of 77.8% and a BVG DRC had a test accuracy of 98.6%. There was a positive correlation between bladder volume grades and scarring on a DMSA scan.Conclusions:Like a conventional DRC, BVG DRC is a sensitive and an accurate test. It gives additional information on the reflux phenomenon with respect to bladder filling. The bladder volume graded technique is better than conventional DRC for grading of VUR.

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Comparison of direct radionuclide cystography and voiding direct cystography in the detection of vesicoureteral reflux

Cited by 31 publications

References 12 publications

Interactive magnetic resonance voiding cystourethrography (iMRVC) for vesicoureteric reflux (VUR) in unsedated infants: a feasibility study

Interactive magnetic resonance voiding cystourethrography (iMRVC) for vesicoureteric reflux (VUR) in unsedated infants: a feasibility study

Ureter Visualization on Tc-99m DMSA Scintigraphy in Pediatric Patients

Vesicoureteric reflux: Evaluation by bladder volume graded direct radionuclide cystogram

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