Xiaorui Zhang^1,3,*, Jiali Duan¹, Lifeng Zhu², Ladislav Kavan³

CMC-Computers, Materials & Continua, Vol.57, No.3, pp. 505-519, 2018, DOI:10.32604/cmc.2018.01842

Abstract Puncture is a common operation in surgery, which involves all kinds of tissue materials with different geometry and mechanical properties. As a new cross-disciplinary research area, Virtual Surgery (VS) makes simulation of soft tissue in puncture operation possible in virtual environment. In this paper, we introduce a VS-based puncture system composed by three-layer soft tissue, simulated with spherical harmonic function (SHF), which is covered with a force mesh, constructed by mass spring model (MSM). The two models are combined together with a parameter of SHF named surface radius, which provides MSM with real-time deformation data… More >

Igor Sorokin¹, Murthy Chamarthy², Jeffrey A. Cadeddu^1,2

Canadian Journal of Urology, Vol.24, No.1, pp. 8679-8683, 2017

Abstract Percutaneous radiofrequency ablation has seen increased utilization secondary to the rising incidence of renal cell carcinoma. This has been shown to be an effective and durable treatment especially in the elderly comorbid patient. In this article, we describe our technique and factors related to successful outcomes. More >

Andrew A. Pridjian, Adam Sharbaugh, Amar Raval, David McGinnis

Canadian Journal of Urology, Vol.24, No.1, pp. 8676-8678, 2017

Abstract We present a rare case of fibrous pseudotumor of the tunica vaginalis. Discussion includes identification, histopathologic findings and management. Proper understanding and preoperative identification of this benign disease allows for an organ-sparing surgical approach. More >

Raunak D. Patel, Colton Walker, Daniel J. Canter

Canadian Journal of Urology, Vol.24, No.1, pp. 8670-8672, 2017

Abstract Diffuse large B-cell lymphomas (DLBCL) are the most common lymphomas worldwide. They also appear to be the most common primary retroperitoneal lymphomas, but this presentation is relatively uncommon in the literature. Retroperitoneal masses, including lymphomas, often present with nonspecifc symptoms and laboratory values, necessitating radiographic assessment and consideration of mass biopsy prior to the initiation of treatment. Here we present a case of a primary retroperitoneal DLBCL as well as a review of the clinical presentation, imaging fndings, and differential diagnosis of such tumors. More >

Jamil S. Syed¹, Cayce B. Nawaf¹, James Rosoff¹, Campbell Bryson¹, Kevin A. Nguyen¹, Alfredo Suarez-Sarmiento¹, Maria Serrano², Adam S. Kibel⁴, Peter Humphrey³, Brian Shuch¹, Adebowale J. Adeniran³

Canadian Journal of Urology, Vol.24, No.2, pp. 8759-8764, 2017

Abstract Introduction: Evidence has demonstrated that tumor size is related to adverse oncologic outcomes in small renal tumors (≤ 4 cm). We evaluated the association of adverse pathologic features (APF) with tumor size and survival in patients with a small renal mass (SRM).
Materials and methods: We retrospectively reviewed the pathologic characteristics of 380 surgically resected SRMs from a single institution. APFs included lymphovascular invasion, coagulative necrosis, sarcomatoid/rhabdoid features, papillary type II histology, and perinephric fat/renal sinus invasion. The number and type of APFs were compared with tumor size. Survival analysis was performed using the Kaplan-Meier method.
Results: There… More >

Izak Faiena¹, Alexandra Tabakin¹, Jeffrey Leow², Neal Patel¹, Parth K. Modi¹, Amirali H. Salmasi¹, Benjamin I. Chung³, Steven L. Chang², Eric A. Singer¹

Canadian Journal of Urology, Vol.24, No.5, pp. 8990-8997, 2017

Abstract Introduction: Data on the utilization of open, laparoscopic and robotic adrenalectomy on a national level is limited.
Materials and methods: Data on patients who underwent open, laparoscopic, or robotic adrenalectomy for benign or malignant disease in the US from 2003-2013 were extracted using ICD-9 codes from the Premier Hospital Database. Surgeon specialty, patient demographics, hospital characteristics, and complications were compared. Data were analyzed using univariate and multivariable logistic regression analyses.
Results: A total of 8,831 adrenalectomies were performed for benign and malignant tumors. There was no significant difference in rate of adrenalectomy with regards to comorbidities, insurance status,… More >

Lindsay Wilde¹, Praveen Mehrotra², Jean Hoffman-Censits¹

Canadian Journal of Urology, Vol.24, No.6, pp. 9145-9147, 2017

Abstract A 73-year-old male with a remote history of renal cell carcinoma presented with an asymptomatic left ventricular mass. Biopsy of the mass revealed a late recurrence of his renal cell carcinoma. Given the size and location of the mass, resection was not possible. Treatment with pazopanib was initiated with good clinical response. More >

Amir Faghri, Yuwen Zhang

Frontiers in Heat and Mass Transfer, Vol.8, pp. 1-1, 2017, DOI:10.5098/hmt.8.41

Abstract This article has no abstract. More >

R. Srinivasa Raju^a,*, G. Jithender Reddy^b , G. Anitha^a

Frontiers in Heat and Mass Transfer, Vol.8, pp. 1-12, 2017, DOI:10.5098/hmt.8.27

Abstract In the present study, consider an influence of chemical reaction on an unsteady MHD free convective, viscous dissipative Casson fluid flow over a vertically inclined plate in presence of magnetic field, heat and mass transfer. The modeling equations are converted to dimensionless equations, then solved through finite element technique. Computations were performed to analyze the behavior of fluid velocity, temperature, concentration and induced magnetic field on the inclined vertical plate with the variation of emerging physical parameters. Compared the present results with earlier reported studies for correctness and applicability of finite element technique. This model More >

E. Kumaresan, A .G. Vijaya Kumar^*

Frontiers in Heat and Mass Transfer, Vol.8, pp. 1-7, 2017, DOI:10.5098/hmt.8.9

Abstract A study has been carried out to analyse an unsteady free convective chemically reacting, MHD Visco-elastic fluid (Walter’s liquid-B model) flow past an infinite vertical plate in the presence of thermal radiation with uniform temperature and species diffusion. The dimensionless governing partial differential equations are solved by using Laplace transform technique. The effects of different physical parameters like visco-elastic parameter, chemical reaction parameter, Magnetic field parameter, thermal Grashof number, mass Grashof number and time are discussed by plotting the velocity profiles for both cooling  (G_r ＞0, G_m ＞ 0) and heating of the plate (G_r ＜ More >