scholarly journals Diagnostic facilities of methods of ultrasound diagnostics in urolithiasis in children

2019 ◽  
Vol 19 (3) ◽  
pp. 138-143
Author(s):  
I. V. Dvoryakovskiy ◽  
A. V. Akopyan ◽  
Galina M. Dvoryakovskaya ◽  
S. A. Ivleva ◽  
S. N. Zorkin ◽  
...  
Keyword(s):  
Color Doppler ◽  
Main Criterion ◽  
Acoustic Structure ◽  
Acoustic Shadow ◽  
Ultrasonic Methods ◽  
Ultrasound Study ◽  
Ultrasound Diagnostics ◽  
Ct Density ◽  
Central Department ◽  
Acoustic Structure Quantification

There are presented data of the integrated ultrasound (US) examination of 85 children with urolithiasis (IBC) at the age of from 3 months up to 17 years. In traditional ultrasound study (in gray scale mode), the main criterion for the presence of stone - distal acoustic «shadow» was evaluated in dependence on its intensity from 0 to 4 scores. When using color Doppler mapping (CDM) there was established the existence of flaring artifact (FA), which occurred in the reflection of the ultrasonic wave from the reflective stone structure. According to the density index (DI) the presence and density of calculus were detected with the use of Acoustic Structure Quantification (ASQ) methodology for quantifying the structure. The obtained data were compared with data of computed tomography (CT). It has been established that in case of the presence of the «shadow» accounted of 4 scores, FA has been clearly defined, DI ranged from 5,5 to 6,8, CT indices exceed 1100-1500 Hu. When the severity of the «shadow» was of 3 scores, FA remained to be intensive, DI was in the range of 3,5-5,5 and CT density ranged from 800 to 1100 Hu. «Shadow» at 2 scores came from the central department of calculus, FA spectrum corresponded to its width, DI ranged from 3,5 to 2,0 and CT radiodensity - 250 to 800 Hu. Weak «shadow» at 1 score corresponds to a low density stone, FA was narrow, DI ranged from 2,0 to 1,5. At 0 score DI was less than 0,9 and easily permitted ultrasound through. Established patterns indicate to the feasibility of the integrated use of ultrasonic methods in the evaluation of the density of the stone in preparing the patient for performing remote lithotripsy.

scholarly journals Possibilities of Multiparametric Ultrasound Study with Contrast Enhanced in the Diagnostics of Cistic Kidney Lesions

2021 ◽  
Vol 4 (3) ◽  
pp. 35-43
Author(s):  
R. A. Kadyrleev ◽  
S. S. Bagnenkо ◽  
E. A. Busko ◽  
E. V. Kostromina ◽  
L. N. Shevkunov ◽  
...  
Keyword(s):  
Color Doppler ◽  
Renal Cysts ◽  
Color Doppler Imaging ◽  
Doppler Imaging ◽  
Cystic Kidney ◽  
Gray Scale ◽  
Ultrasound Study ◽  
Contrast Enhanced ◽  
Contrast Ultrasound

Purpose: To compare the capabilities and evaluate the effectiveness of gray-scale B-mode, Doppler mapping and contrast enhanced in the assessment of cystic renal lesions.Material and methods: Ultrasound examination (US) was performed in 61 patients with cystic kidney formations (category Bosniak ≥ II). Cysts of categories Bosniak ≥ III were histologically verified, rest (categories II–IIF) were under follow up. All patients underwent gray-scale ultrasound, color Doppler imaging and contrast enhanced (CEUS).Results: The efficiency of the B mode was: sensitivity 55.6 %; specificity 72.1 %; accuracy 62.3 %, in the CDI mode these indicators were 52.8; 80.1; 63.9 %, respectively. Contrast ultrasound significantly increased the capabilities of the method, and also made it possible to evaluate cystic formations according to the Bosniak criteria with indicators of the effectiveness of the method up to 100.0; 92.0; 96.7 %, respectively.Conclusions: CEUS demonstrated high informative value in the assessment of renal cystic formations in comparison with native ultrasound and Doppler modes, and therefore the technique should be considered as promising for inclusion in the algorithm of examination of complex renal cysts. 

Acoustic Structure Quantification Ultrasound Software Proves Imprecise in Assessing Liver Fibrosis or Cirrhosis in Parenchymal Liver Diseases

2014 ◽  
Vol 40 (12) ◽  
pp. 2811-2818 ◽  
Author(s):  
Christiane Krämer ◽  
Natalie Jaspers ◽  
Dirk Nierhoff ◽  
Kathrin Kuhr ◽  
Andrea Bowe ◽  
...  
Keyword(s):  
Liver Fibrosis ◽  
Liver Diseases ◽  
Acoustic Structure ◽  
Parenchymal Liver ◽  
Acoustic Structure Quantification

scholarly journals Pediatric renal pseudotumour

2020 ◽  
pp. 20200088
Author(s):  
David Ola ◽  
Ravikumar Hanumaiah ◽  
Anand Majmudar
Keyword(s):  
Renal Mass ◽  
Surgical Intervention ◽  
Color Doppler ◽  
Hypertensive Crisis ◽  
Kidney Injury ◽  
Renal Ultrasound ◽  
Ultrasound Study ◽  
Normal Renal Parenchyma ◽  
History Of ◽  
The Right

We present a case of 6-year-old female with history of respiratory distress who went into respiratory failure requiring intubation. Patient was subsequently found to be in hypertensive crisis with hyponatremic hypochloremic metabolic acidosis and acute kidney injury. Renal ultrasound was performed to find the cause of hypertension. The ultrasound study demonstrated lobulated isoechoic to hyper echoic mass-like lesion in the middle and lower pole of the right kidney with increased vascularity on Color Doppler examination. The renal mass was finally diagnosed as a pseudotumour, representing hypertrophied portion of the spared normal renal parenchyma in otherwise atrophic right kidney. Diagnosis was made using a combination of US, MRI, DMSA and CT angiography thus avoiding unnecessary surgical intervention.

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