Zenon Pogorelic^1,2, Christopher Neumann², Miro Jukic¹

Canadian Journal of Urology, Vol.26, No.6, pp. 10026-10032, 2019

Abstract Introduction: The aim of this study was to investigate demographic and clinical characteristics and outcomes of the treatments of the patients with an unusual presentation of testicular torsion (TT) and to clarify their peculiarities.
Material and methods: From January 1999 until December 2017, the case records of 149 patients who underwent surgery for TT were retrospectively reviewed. Out of that number, 25 patients were identified with unusual presentation of an acute scrotum (14 patients who presented with abdominal pain only, and 11 who presented with testicular torsion in the inguinal canal).
Results: The median age of all children… More >

Haitong Zhao¹, Yi Li¹, Shouhua Luo^1,*

Molecular & Cellular Biomechanics, Vol.16, No.4, pp. 265-273, 2019, DOI:10.32604/mcb.2019.07381

Abstract The ring artifacts introduced by the defective pixels with non-linear responses in the high-resolution detector, have a great impact on subsequent processing and quantitative analysis of the reconstructed images. In this paper, a multistep method is proposed to suppress the ring artifacts of micro CT images, which firstly locates the positions of the defective pixels in the sinogram, and then corrects the corresponding value in the projections. Since the defective pixels always appear as vertical stripes in the sinogram, a horizontal curve is derived by summing the pixel values along vertical direction, thus the abrupt… More >

Wei Chen^{1, 2}, Tingzhu Sun^{1, 2}, Fangming Bi^{1, 2, *}, Tongfeng Sun^{1, 2}, Chaogang Tang^{1, 2}, Biruk Assefa^{1, 3}

Journal of New Media, Vol.1, No.1, pp. 35-44, 2019, DOI:10.32604/jnm.2019.05803

Abstract Image restoration is an image processing technology with great practical value in the field of computer vision. It is a computer technology that estimates the image information of the damaged area according to the residual image information of the damaged image and carries out automatic repair. This article firstly classify and summarize image restoration algorithms, and describe recent advances in the research respectively from three aspects including image restoration based on partial differential equation, based on the texture of image restoration and based on deep learning, then make the brief analysis of digital image restoration More >

Taha A. Abdel-Meguid^1,2, Hisham A. Mosli¹, Hasan Farsi¹, Ahmad Alsayyad¹, Abdulmalik Tayib¹, Moataz Sait¹, Ahmad Abdelsalam^1,3

Canadian Journal of Urology, Vol.25, No.2, pp. 9273-9280, 2018

Abstract Introduction: To evaluate the efficacy and safety of intraprostatic injections of onabotulinumtoxinA (onaBoNT-A) to treat refractory chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS).
Materials and methods: Prospective two-group controlled study. Treatment group included adult men with refractory category-III nonbacterial CP/CPPS who underwent transurethral intraprostatic injections of onaBoNT-A (200 U). Control group included comparable patients who underwent cystoscopy only. Primary outcome was the proportion of 6-point responders (≥ 6 points reduction of total score of National Institutes of Health-Chronic Prostatitis Symptom Index [NIH-CPSI]) at 3 months. Secondary outcomes included proportions of quality of life (QoL) responders (≤ 2 points… More >

Austin J. Lee¹, Jonathan G. Yabes², Nathan Hale³, Ronald L. Hrebinko³, Jeffrey R. Gingrich³, Jodi K. Maranchie³, Mina M. Fam³, Robert M. Turner II³, Benjamin J. Davies³, Bruce Ben-David⁴, Bruce L. Jacobs³

Canadian Journal of Urology, Vol.25, No.2, pp. 9255-9261, 2018

Abstract Introduction: Multimodal analgesia is an effective strategy for managing postoperative pain and reducing opioid dependence. The quadratus lumborum block (QLB) and paravertebral block (PVB) are two regional anesthesia techniques that enhance multimodal pain management. In this study, we aimed to compare the efficacy of these two approaches in patients undergoing radical cystectomy. Materials and methods: A retrospective review was conducted on patients who underwent radical cystectomy between 2014 and 2016. Patients were divided into two groups based on the type of regional anesthesia received: bilateral continuous paravertebral blocks (n = 125) or bilateral single-shot quadratus lumborum blocks… More >

Alice Crane, Jessica Lloyd, Daniel A. Shoskes

Canadian Journal of Urology, Vol.25, No.2, pp. 9250-9254, 2018

Abstract Introduction: The UPOINT phenotyping system has proven effective in classifying patients with urologic pelvic pain syndromes in a clinically meaningful way and guiding multimodal therapy. While highly successful in men with chronic prostatitis/chronic pelvic pain syndrome (CPPS), its utility is more limited in patients with interstitial cystitis/painful bladder syndrome (IC/PBS). This is because all IC/PBS patients, by definition, exhibit urinary and organ-specific symptoms. Furthermore, the AUA guidelines recommend a sequential tiered approach to treatment rather than the concurrent multimodal strategy used in UPOINT. Therefore, we aimed to modify the UPOINT system to make it more practical… More >

Karen M. Doersch¹, G. Luke Machen², Kim H. Thai², John Sung², Marawan M. El Tayeb²

Canadian Journal of Urology, Vol.25, No.6, pp. 9596-9600, 2018

Abstract Introduction: Stent placement is a common procedure for addressing obstructive uropathy. However, lack of operating room (OR) availability can substantially delay this procedure. In this study, we sought to assess the feasibility, safety, and efficacy of this procedure in a clinical setting using nitrous oxide (N₂O) and local anesthesia.
Materials and methods: Patients included in this study included those who were determined to need management of urinary obstruction with a JJ (“double J”) stent and had their procedure performed in the clinic procedure suite with N₂O anesthesia.
Results: We present a case series of 565 patients undergoing ureteral stent… More >

Soham Dasgupta¹, Megan Stark², Sonal Bhatt³, Peter Fischbach¹, Shriprasad Deshpande¹

Congenital Heart Disease, Vol.13, No.6, pp. 1058-1063, 2018, DOI:10.1111/chd.12681

Abstract Introduction: A cardiac cause is an extremely rare etiology of pediatric chest pain. Despite its low sensitivity/specificity, exercise stress testing (EST) is widely used to determine the prognosis in patients with suspected/established coronary disease. We aimed to look at the utility of a combined cardiopulmonary EST in the evaluation of pediatric patients with chest pain.
Methods: After institutional review board approval, a retrospective chart review was performed of all pediatric patients who were referred for an EST for chest pain from January 2014 to 2017. Patients with incomplete records, severe congenital heart disease, and a prior EST… More >

Susan F. Saleeb¹, Sarah R. McLaughlin², Dionne A. Graham², Kevin G. Friedman¹, David R. Fulton¹

Congenital Heart Disease, Vol.13, No.1, pp. 46-51, 2018, DOI:10.1111/chd.12539

Abstract Objective: Using a Standardized Clinical Assessment and Management Plan (SCAMP) for pediatric patients presenting to clinic with chest pain, we evaluated the cost impact associated with implementation of the care algorithm. Prior to introduction of the SCAMP, we analyzed charges for 406 patients with chest pain, seen in 2009, and predicted 21% reduction of overall charges had the SCAMP methodology been used. The SCAMP recommended an echocardiogram for history, examination, or ECG findings suggestive of a cardiac etiology for chest pain.
Design: Resource utilization was reviewed for 1517 patients (7-21 years) enrolled in the SCAMP from July… More >

Adam J. Rensing¹, Anand Mohapatra¹, Aaron M. Potretzke¹, Jennifer K. Sehn², Robert S. Figenshau¹

Canadian Journal of Urology, Vol.24, No.1, pp. 8673-8675, 2017

Abstract Lymphoepithelioma-like carcinoma (LELC) is a rare finding in the upper urinary tract. The presenting clinical findings mimic those of other more common upper-tract tumors, such as urothelial carcinoma. Preoperative imaging has not been shown to reliably predict the diagnosis of LELC. This tumor can be misdiagnosed as a reactive inflammatory lesion or lymphoma if the proper immunohistochemical stains for cytokeratin are not used. More >