Emergency CT usage rate soars for urinary stones

The overall usage rate of emergency CT for patients with suspected urinary...Read more on AuntMinnie.comRelated Reading: Did Image Gently reduce CT use for kidney stones? Which modality works best for diagnosing kidney stones? AI gives one-stop shopping for urinary stone evaluation Ultrasound should be 1st choice for suspected kidney stones Iterative reconstruction cuts CT dose for urinary stone disease
Source: AuntMinnie.com Headlines - Category: Radiology Source Type: news

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Sound waves can be shaped into tweezers that can drag small objects around inside the body and potentially remove kidney stones
Source: New Scientist - Health - Category: Consumer Health News Source Type: research
Authors: Ali S, Sirota E, Ali H, Bezrukov E, Okhunov Z, Bukatov M, Letunovskiy A, Grygoriev N, Taratkin M, Vovdenko S, Afyouni A, Alyaev Y Abstract Objective: We sought to improve the educational and pre-operative training on various stages of percutaneous nephrolithotomy (PCNL) under fluoroscopic and ultrasound guidance. We developed a three-dimensional (3D) printed simulator (3D-printed PCNL model) for urological trainees.Methods: 40 s year urology residents were randomly assigned into two groups, completing PCNL surgical steps on a URO Mentor™ surgical simulator (Group A) or on our new 3D-printed PC...
Source: Scandinavian Journal of Urology - Category: Urology & Nephrology Tags: Scand J Urol Source Type: research
Conclusions: US-guided MPCNL showed an excellent SFR and low complication rate in the management of pediatric patients with upper ureteral and renal stones. PMID: 32401098 [PubMed - as supplied by publisher]
Source: Journal of Investigative Surgery - Category: Surgery Tags: J Invest Surg Source Type: research
Authors: Karve PM, Duddu R, Tierney J, Dei K, Hsi R, Byram B Abstract We perform finite element modeling of pulse-echo ultrasound of a hard inclusion in a soft tissue to gain a better understanding of B-mode image brightness characteristics. We simulate a pressure wave emitted by an ultrasound transducer through the inclusion-tissue medium by prescribing suitable boundary conditions, and collect the scattered wave response to simulate the behavior of the transducer array used for pulse-echo ultrasound. We form B-mode images from simulated channel data using standard delay and sum beamforming. We establish the accur...
Source: Ultrasonic Imaging - Category: Radiology Tags: Ultrason Imaging Source Type: research
A 52-year-old female presented with non-tender, firm subcutaneous nodules along both shins that had been ongoing for 2 years (Supplementary Figure  S1). She had undergone bariatric surgery for intestinal bypass 36 years earlier and had been on hemodialysis for 8 years. The kidney ultrasound revealed multiple renal stones at the time of dialysis initiation. She has no evidence of cardiomyopathy, hepatic dysfunction, or retinopathy. The plain f ilms of bilateral lower extremities demonstrated multiple calcified nodules about 3–5 mm in diameter (Supplementary Figure S2).
Source: Kidney International - Category: Urology & Nephrology Authors: Tags: Nephrology Image Source Type: research
This study aimed to investigate the efficacy and safety of febuxostat in patients with radiolucent nephrolithiasis. MATERIALS AND METHODS: From March 2016 to June 2018, data of 96 patients with radiolucent nephrolithiasis and hyperuricemia who referred to the Third Affiliated Hospital of Sun Yat-sen University were retrospectively analyzed. These patients were divided into allopurinol 300mg/d (control), febuxostat 40mg/d (F40) and 80mg/d (F80) groups respectively. All patients took potassium citrate as a combination treatment and had been followed up for at least 6 months. Before treatment and on the day of the 1st, 3...
Source: Urology Journal - Category: Urology & Nephrology Authors: Tags: Urol J Source Type: research
CONCLUSIONS: The choice of approach depends on different factors such as stone size, density and location in accordance with upper urinary tract alterations, kidney anatomy and operator experience. The choice of a retrograde, percutaneous or lap/robot approach should be carefully selected evaluating upper urinary tract anatomy and stone features. PMID: 32298068 [PubMed - as supplied by publisher]
Source: Minerva Urologica e Nefrologica - Category: Urology & Nephrology Tags: Minerva Urol Nefrol Source Type: research
CONCLUSION: PI-DJS during PCNL allowed for a reliable and stable reflux from the bladder into the renal pelvis to produce an artificial hydronephrosis without the formation of microbubbles, unlike conventional ureteral catheters. PMID: 32309876 [PubMed - as supplied by publisher]
Source: Urology Journal - Category: Urology & Nephrology Authors: Tags: Urol J Source Type: research
Objectives The aim of this study was to examine computed tomography (CT) and ultrasound (US) utilization trends in incident and prevalent pediatric emergency department (ED) urolithiasis patients before and after imaging guideline release. Methods We reviewed imaging modalities for children with 2 or more ED encounters between January 1, 2006, and September 1, 2013, for urolithiasis using the Pediatric Health Information System database. Z scores compared the proportion of patient encounters receiving CT and US before (January 1, 2006, to December 31, 2010) and after (January 1, 2011, to September 1, 2013) the release...
Source: Pediatric Emergency Care - Category: Emergency Medicine Tags: Original Articles Source Type: research
The color Doppler ultrasound twinkling artifact has been found to improve detection of kidney stones with ultrasound; however, it appears on only ∼60% of stones. Evidence from ex vivo kidney stones suggests twinkling arises from microbubbles stabilized in crevices on the stone surface. Yet it is unknown whether these bubbles are present on stones in humans. Here, we used a research ultrasound system to quantify twinkling in humans with kidn ey stones in a hyperbaric chamber. Eight human patients with non-obstructive kidney stones previously observed to twinkle were exposed to a maximum pressure of 4 atmospheres absolut...
Source: Ultrasound in Medicine and Biology - Category: Radiology Authors: Tags: Clinical Note Source Type: research
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