Can Freehand Elastosonography Be an Alternative to Renal Scintigraphy in Pediatric Vesicoureteral Reflux Cases?

2018 ◽  
Vol 29 (05) ◽  
pp. 470-474
Author(s):  
Bilge Karabulut ◽  
Gulsah Bayram ◽  
Can Ihsan Oztorun ◽  
Burak Ozcift ◽  
Tuğrul Hüseyin Tiryaki
Keyword(s):  
Vesicoureteral Reflux ◽  
Scar Formation ◽  
Lower Pole ◽  
Renal Scar ◽  
Differential Function ◽  
Renal Scan ◽  
Significant Difference ◽  
Recorded Data ◽  
Dmsa Scan ◽  
Scan Data

Introduction Detecting renal scar is important in pediatric patients with vesicoureteral reflux (VUR) for deciding on treatment option. The aim of this study is to detect whether freehand elastosonography technique could be an alternative to dimercaptosuccinic acid (DMSA) scan in determining renal scar formation. Materials and Methods Between November 2015 and April 2016, 25 VUR patients, age ranging from 3 to 17 years admitted to our clinic, had urinary ultrasound and elastosonography, and data of approximately 147 renal region were recorded. Data were upper, middle, and lower pole renal parenchymal thickness and echogenicities obtained by ultrasound and these poles strain target (ST), strain reference (SR), and strain index (SI) values obtained by freehand elastosonography. DMSA scan data (differential function and upper, middle, and lower pole parenchymal scar formation) were recorded. Results Scar formation and more than 10% reduction in differential function in renal scan were statistically higher in renal regions in which parenchymal thinning and echogenicity increase was detected by ultrasound. There was no elastosonographic data difference between renal units with and without differential function decrease. Also, there was no elastosonographic data difference between renal units with and without scar formation. Conclusion In this study, we could not find any significant difference in term of tissue tension values (ST and SI) measured by freehand elastosonography between renal units with and without scar formation in renal scan.

scholarly journals Study of DMSA (99mTc-dimercaptosuccinic acid) scan disorders in children 1-12 years with first acute pyelonephritis and its association with vesicoureteral reflux

2018 ◽  
Vol 6 (3) ◽  
pp. 751
Author(s):  
Majid Vafaie ◽  
Javad Zare-noghabi ◽  
Hadiseh Bahri
Keyword(s):  
Vesicoureteral Reflux ◽  
Acute Pyelonephritis ◽  
Renal Scarring ◽  
High Sensitivity ◽  
Cross Sectional ◽  
Significant Difference ◽  
Febrile Uti ◽  
Dimercaptosuccinic Acid Scan ◽  
Dmsa Scan ◽  
Negative Urine Culture

Background: Acute pyelonephritis and vesicoureteral reflux are one of the main causes of renal scarring in children, which can lead to serious complications such as hypertension and chronic renal failure. The aim of this study was to evaluate the scan disorders in children aged 1-12 years with acute pyelonephritis and its relation with ureteral bladder reflux.Methods: This retrospective cross-sectional descriptive study was conducted on all patients who had been diagnosed with febrile UTI for 4 years (2012-2015) in Ardebil's Children's Hospital. Information about 99mTc-DMSA scan and ultrasonography and cystoyurethrography of patients were extracted from the files and then analyzed by statistical methods inSPSS.19.Results: 148 children (9 boys and 139 girls) with a range of 1 to 12 years old (mean age of 52.34±4.34 months) were included in the study. Of these, 123 patients were subjected to cystoyurethrography after a negative urine culture. A 99mTc-DMSA scan report in the acute phase of the disease was abnormal in 80.4% of the children. VCUG and RNC tests were performed in 123 patients, in 70 (57%) normal cases, and in 53 cases (43%) of urinary reflux. The incidence of reflux with abnormal 99mTc-DMSA scan was 42%. There was no significant correlation between the prevalence of reflux in patients with abnormal 99mTc-DMSA scan in two groups of 1-4 years old and more than 4 years old. No significant difference was found in patients with abnormal scan in responding to treatment and comparing fever after admission in patients with normal 99mTc-DMSA.Conclusions: The results indicate high prevalence of reflux in patients with acute pyelonephritis. Due to the high sensitivity of the scan to detect pyelonephritis and, Pyelonephritis.

Adding Renal Scan Data Improves the Accuracy of a Computational Model to Predict Vesicoureteral Reflux Resolution

2008 ◽  
Vol 180 (4S) ◽  
pp. 1648-1652 ◽  
Author(s):  
Kenneth G. Nepple ◽  
Matthew J. Knudson ◽  
J. Christopher Austin ◽  
Moshe Wald ◽  
Antoine A. Makhlouf ◽  
...  
Keyword(s):  
Computational Model ◽  
Vesicoureteral Reflux ◽  
Renal Scan ◽  
Scan Data

scholarly journals Renal scar formation and kidney function following antibiotic-treated murine pyelonephritis

2017 ◽  
Vol 10 (11) ◽  
pp. 1371-1379 ◽  
Author(s):  
Patrick D. Olson ◽  
Lisa K. McLellan ◽  
Alice Liu ◽  
Kelleigh L. Briden ◽  
Kristin M. Tiemann ◽  
...  
Keyword(s):  
Kidney Function ◽  
Scar Formation ◽  
Renal Scar

scholarly journals Influence of the background activity region selection on the measurement of glomerular filtration rate using the Gates method

2008 ◽  
Vol 65 (10) ◽  
pp. 729-732 ◽  
Author(s):  
Marija Dopudja ◽  
Boris Ajdinovic ◽  
Ljiljana Jaukovic ◽  
Marijana Petrovic ◽  
Zoran Jankovic
Keyword(s):  
Glomerular Filtration Rate ◽  
Glomerular Filtration ◽  
Filtration Rate ◽  
Background Activity ◽  
Accurate Method ◽  
Lateral Side ◽  
Lower Pole ◽  
Region Selection ◽  
Significant Difference ◽  
51Cr Edta

Background/Aim. The most frequent method for the assessment of glomerular filtration rate GFR) in clinical practice is clearance of creatinine, clearance of chromium-51 radiolabelled ethylene diamine tetraacetic acid (51Cr-EDTA) and clearance of technetium-99m radiolabelled diethylene triamine pentaacetic acid (99mTc-DTPA). The Gates method for glomerular filtration rate assessment is based on distribution of 99mTc-DTPA in the kidney 2-3 minute after its applying. Calculation of GFR is corrected for the background and depth of the kidney and finally expressed as a percentage of the net injected counts. This value of GFR highly correlates with biexponential model as the most accurate method for the assessment of GFR. The aim of this study was to determine the influence of different background sites on GFR rate assessment using the Gates method. Methods. We analysed 50 patients who were divided into two groups: the group of healthy subjects (21 subjects, mean age 47.38 yrs) and the group of subjects with unilateral kidney damage (29 subjects, mean age 39.79 yrs). Three different background activity regions were chosen: a region drawn below the lower pole of each kidney, region drawn by the lateral side of each kidney and region drawn around the whole kidney. Results. Gromerular filtration rate calculated by the use of a region under the lower pole is statistically significantly higher than GFR calculated using a region by the lateral side and around the whole kidney (p < 0.0001). Glomerular filtration rate calculated using the region by the lateral side and region around the whole kidney did not show statistically significant difference (p > 0.05). Conclusion. The selection of background activity region has a significant influence on GFR rate measured by the Gates method. It is recommended to use only one method for choosing the region of background activity.

T-Scan as a Patient Education Tool

2015 ◽  
pp. 672-704
Author(s):  
John R. Droter, DDS
Keyword(s):  
Patient Education ◽  
Teaching And Learning ◽  
Dental Health ◽  
Recorded Data ◽  
Scan Data ◽  
Education Tool ◽  
Teaching Learning ◽  
Effective Teaching And Learning

The T-Scan is an effective patient education tool for illustrating existing occlusal pathology. It presents complex occlusal information in a visual format that is easily understood. The T-Scan applies to all stages of the teaching/learning process because its recorded data forms the framework upon which a doctor/patient discussion can begin regarding the patient's occlusal disease manifestations, the potential benefit of treatments, and the risks of not undergoing corrective treatment. When used as part of an educational strategy, the T-Scan can lead the patient to accept procedures that would benefit their long-term dental health. This chapter outlines the four stages of creating optimum dental health, the steps required to perform effective teaching and learning, the differing styles of teaching and learning utilized in educational forums, and how to best employ the technique of Feature, Function, and Benefit. A case study illustrates how T-Scan data can educate a patient about their own occlusal problems.

T-Scan as an Education Tool

2020 ◽  
pp. 1316-1356
Author(s):  
John R. Droter, DDS
Keyword(s):  
Potential Benefit ◽  
Teaching And Learning ◽  
Dental Health ◽  
Case Examples ◽  
Recorded Data ◽  
Scan Data ◽  
Education Tool ◽  
Teaching Learning ◽  
Effective Teaching And Learning

The T-Scan is an effective patient and doctor education tool for illustrating existing occlusal pathology, as it presents complex occlusal force and timing information in a visual format that is easily understood. The T-Scan applies to all stages of the teaching/learning process because its recorded data forms the framework upon which a doctor/patient discussion can begin regarding the patient's occlusal disease manifestations, the potential benefit of treatments, and the risks of not undergoing corrective treatment. When used as part of an educational strategy, the T-Scan can lead the patient to accept procedures that would benefit their long-term dental health. Chapter 19 outlines the four stages of creating optimum dental health, the steps required to perform effective teaching and learning, the differing styles of teaching and learning utilized in educational forums, and how to best employ the technique of Feature, Function, and Benefit. A few case examples illustrate how T-Scan data can educate a patient about their own occlusal problems, while describing both normal and abnormal occlusal function to a dentist.

scholarly journals Surgical Reimplantation for the Correction of Vesicoureteral Reflux following Failed Endoscopic Injection

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Boris Chertin ◽  
Ksenia Prosolovich ◽  
Sagiv Aharon ◽  
Ofer Nativ ◽  
Sarel Halachmi
Keyword(s):  
Success Rate ◽  
Vesicoureteral Reflux ◽  
Endoscopic Treatment ◽  
Endoscopic Procedure ◽  
Ureteral Reimplantation ◽  
Endoscopic Injection ◽  
Stable Function ◽  
Renal Scan

Purpose. In recent years, endoscopic injection became the procedure of choice for the correction of vesicoureteral reflux in the majority of the centers. Unfortunately, endoscopic treatment is not always successful and sometimes requires more than one trial to achieve similar results to that of an open reimplantation surgery. Our aim of this study is to evaluate the feasibility and success rate of open ureteral reimplantation following failed endoscopic procedure.Patients and Methods. During 2004–2010, we evaluated 16 patients with persistent vesicoureteral reflux (grades II–IV) following failed endoscopic treatment. All patients underwent open ureteral reimplantation. All patients were followed with an ultrasound 6 weeks following surgery and every 6 months thereafter for an average of 22 months. Voiding cystography was performed at 3 months after surgery.Results. During unilateral open ureteral reimplantation, the implanted deposit from previous procedures was either excised, drained, or incorporated into the neotunnel with the ureter. Vesicoureteral reflux was resolved in all patients with 100% success rate. No new hydronephrosis or signs of obstruction developed in any of the patients. qDMSA renal scan was available in 8 patients showing improvement of function in 5 and stable function in 3, and no new scars were identified.Conclusions. Open ureteral reimplantation is an excellent choice for the correction of failed endoscopic treatment in children with vesicoureteral reflux.

Sign in / Sign up

Export Citation Format

Share Document