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https://www.readbyqxmd.com/read/28108975/3d-printed-soft-tissue-physical-models-of-renal-malignancies-for-individualized-surgical-simulation-a-feasibility-study
#1
Michael M Maddox, Allison Feibus, James Liu, Julie Wang, Raju Thomas, Jonathan L Silberstein
To construct patient-specific physical three-dimensional (3D) models of renal units with materials that approximates the properties of renal tissue to allow pre-operative and robotic training surgical simulation, 3D physical kidney models were created (3DSystems, Rock Hill, SC) using computerized tomography to segment structures of interest (parenchyma, vasculature, collection system, and tumor). Images were converted to a 3D surface mesh file for fabrication using a multi-jet 3D printer. A novel construction technique was employed to approximate normal renal tissue texture, printers selectively deposited photopolymer material forming the outer shell of the kidney, and subsequently, an agarose gel solution was injected into the inner cavity recreating the spongier renal parenchyma...
January 20, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28105904/increasing-use-of-ctpa-for-the-investigation-of-suspected-pulmonary-embolism
#2
Sidharth Sharma, Christopher D Lucas
OBJECTIVES: Pulmonary embolism (PE) is a frequently suspected life-threatening condition that often presents with non-specific signs and symptoms. There is concern that increased availability of computerized tomography pulmonary angiogram (CTPA) is resulting in overuse in the diagnostic workup of patients presenting with cardio-respiratory symptoms. We therefore aimed to determine whether use of CTPA was increasing over time within our institution, with a consequent decrease in the diagnostic yield of PE...
January 20, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28101723/role-of-high-resolution-computerized-tomography-chest-in-identifying-tubercular-etiology-in-patients-diagnosed-as-eales-disease
#3
Ranju Kharel Sitaula, Vandana Iyer, Veena Noronha, Parthopratim Dutta Majumder, Jyotirmay Biswas
BACKGROUND: The high resolution computerized tomography of chest is an important diagnostic imaging tool to identify any pulmonary tubercular lesion. It's role in Eales' disease to identify any possible association with pulomonary tuberculosis has not been studied earlier. So, this study was conducted to assess the role of high resolution computerized tomography (HRCT) chest in identifying tuberculous etiology in Eales' disease. RESULTS: It was a retrospective study conducted at a tertiary care eye hospital in South India between January 2009 and October 2014 were included...
December 2017: Journal of Ophthalmic Inflammation and Infection
https://www.readbyqxmd.com/read/28101187/severe-pneumonia-due-to-infection-with-candida-krusei-in-a-case-of-suspected-middle-east-respiratory-syndrome-a-case-report-and-literature-review
#4
Mingming Tan, Junwei Wang, Peiyang Hu, Bin Wang, Wanghua Xu, Jiao Chen
Candida krusei (C. krusei) pneumonia is a rare infection that is frequently associated with a poor outcome. The present study reports an unusual case of C. krusei pneumonia that was initially suspected to be a Middle East respiratory syndrome (MERS) case. A 64-year-old Saudi Arabian male patient was admitted to our hospital with complaints of cough and dyspnea that persisted for 6 days. The patient presented fever (oral temperature, 38.5°C) and slight tachypnea (25 respirations/min). A chest computerized tomography demonstrated unclear lung fields, diffuse pathological changes in the two lungs and multiple lymphadenectasis in the retrocaval and para-aortic arch area...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28101154/minimally-invasive-open-nephrectomy-on-children-with-multicystic-dysplastic-kidney
#5
Dongchuan Feng, Xiaoyu Zhu, Fang Sun, Tongsheng Ma, Yuan Li, Shujing Chen
The aim of the study was to summarize the preliminary experience of minimally invasive open nephrectomy operation on children with multicystic dysplastic kidney (MCDK). A retrospective review was performed on the clinical materials of the 15 children that had accepted consecutive minimally invasive open nephrectomies during the previous 2 years. The enrolled children were diagnosed with unilateral MCDK under computed tomography, emission computerized tomography and ultrasound and no anomaly in the contralateral functioning kidney was found...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28098768/preventive-effects-of-drinking-hydrogen-rich-water-on-gingival-oxidative-stress-and-alveolar-bone-resorption-in-rats-fed-a-high-fat-diet
#6
Toshiki Yoneda, Takaaki Tomofuji, Muneyoshi Kunitomo, Daisuke Ekuni, Koichiro Irie, Tetsuji Azuma, Tatsuya Machida, Hisataka Miyai, Kouhei Fujimori, Manabu Morita
Obesity induces gingival oxidative stress, which is involved in the progression of alveolar bone resorption. The antioxidant effect of hydrogen-rich water may attenuate gingival oxidative stress and prevent alveolar bone resorption in cases of obesity. We examined whether hydrogen-rich water could suppress gingival oxidative stress and alveolar bone resorption in obese rats fed a high-fat diet. Male Fischer 344 rats (n = 18) were divided into three groups of six rats each: a control group (fed a regular diet and drinking distilled water) and two experimental groups (fed a high-fat diet and drinking distilled water or hydrogen-rich water)...
January 13, 2017: Nutrients
https://www.readbyqxmd.com/read/28098103/relation-of-fibroblast-growth-factor-23-and-cardiovascular-calcification-in-end-stage-kidney-disease-patients-on-regular-hemodialysis
#7
Tarek Zakaria El Baz, Osama Ahmed Khamis, Osama Ashry Ahmed Gheith, Salama Saad Abd Ellateif, Abdallah Mahmoud Abdallah, Hussein Chahine Abd El Aal
More than half of deaths in end-stage kidney disease (ESKD) patients are due to cardiovascular disease. Elevated fibroblast growth factor 23 (FGF-23) was found to be associated with mortality in hemodialysis (HD) patients and correlates with peripheral calcification. Aortic calcification is associated with coronary artery calcification. Both aortic and peripheral vascular calcifications were associated with mortality in chronic kidney disease. We aimed to investigate the relation between intact FGF-23 and cardiovascular calcification in patients with ESKD who were maintained on regular HD...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28095900/post-stroke-dementia-a-comprehensive-review
#8
REVIEW
Milija D Mijajlović, Aleksandra Pavlović, Michael Brainin, Wolf-Dieter Heiss, Terence J Quinn, Hege B Ihle-Hansen, Dirk M Hermann, Einor Ben Assayag, Edo Richard, Alexander Thiel, Efrat Kliper, Yong-Il Shin, Yun-Hee Kim, SeongHye Choi, San Jung, Yeong-Bae Lee, Osman Sinanović, Deborah A Levine, Ilana Schlesinger, Gillian Mead, Vuk Milošević, Didier Leys, Guri Hagberg, Marie Helene Ursin, Yvonne Teuschl, Semyon Prokopenko, Elena Mozheyko, Anna Bezdenezhnykh, Karl Matz, Vuk Aleksić, DafinFior Muresanu, Amos D Korczyn, Natan M Bornstein
Post-stroke dementia (PSD) or post-stroke cognitive impairment (PSCI) may affect up to one third of stroke survivors. Various definitions of PSCI and PSD have been described. We propose PSD as a label for any dementia following stroke in temporal relation. Various tools are available to screen and assess cognition, with few PSD-specific instruments. Choice will depend on purpose of assessment, with differing instruments needed for brief screening (e.g., Montreal Cognitive Assessment) or diagnostic formulation (e...
January 18, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28094088/usefulness-of-multiparametric-computerized-tomography-findings-in-the-differential-diagnosis-of-stroke-mimics-of-epileptic-origin-a-preliminary-study
#9
R López Ruiz, S Quintas, P Largo, M de Toledo, M T Carreras, A Gago-Veiga, R Manzanares, J Vivancos
OBJECTIVE: Thirty percent of the patients for whom code stroke is activated have stroke mimics, the most common being epilepsy. Our purpose was to evaluate the usefulness of multiparametric CT for differentiating between seizure-related symptoms and vascular events. MATERIAL AND METHODS: We conducted a retrospective observational study; data were gathered prospectively during one year. We studied multiparametric CT images of patients admitted following code stroke activation and finally diagnosed with epilepsy...
January 13, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28093344/unusual-intracerebral-presentation-of-a-myxoid-neurofibroma-a-case-report
#10
Marcos Devanir Silva da Costa, Karina Hoshino, João Norberto Stavale, Oreste Paulo Lanzoni, Sergio Cavalheiro, Manoel Antonio Paiva Neto
BACKGROUND: Neurofibromas are benign nerve sheath tumors that usually affect peripheral nerves and are related to Neurofibromatosis type 1; however, they have not been described as a cause of intraparenchymal brain tumor. CASE DESCRIPTION: We report a case of intracranial myxoid neurofibroma in a 19-year-old female patient manifested as an intense and progressive cephalea, followed by nausea, vomiting, and photo- and phonophobia. Computerized tomography and magnetic resonance imaging showed an extent expansive left frontoparietal parafalcine/parasagittal tumor...
January 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28092782/an-intestinal-carcinoid-causing-transient-jejunal-intussusception-in-an-adult-a-case-report
#11
Yagan Pillay
INTRODUCTION: Transient jejunal intussusception in an adult is a rare clinical finding as reported in the English literature. The diagnosis is usually a matter of exclusion given the extremely rare nature of this medical condition. PRESENTATION OF THE CASE: A young female presented to our hospital with abdominal pain and distention of six months duration. The episodes were intermittent in nature and resolved with conservative management. The aetiology remained obscure until a computerized tomography(CT) scan diagnosed a small bowel intussusceptionIntraoperatively a small bowel tumour was identified and resected...
January 3, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28090445/population-reference-range-for-developmental-lumbar-spinal-canal-size
#12
James F Griffith, Junbin Huang, Sheung-Wai Law, Fan Xiao, Jason Chi Shun Leung, Defeng Wang, Lin Shi
BACKGROUND: Considerable variability exists in normal developmental lumbar spinal canal size. This impacts the likelihood of neural compromise. Spinal canal development is complete by 17 years. As diseases incurred thereafter do not knowingly affect the developmental size of the spinal canal, it is reasonable to use a selected population undergoing abdominopelvic computed tomography (CT) examination to determine developmental lumbar spinal canal size. METHODS: Study approval was granted by the Clinical Research Ethics Committee...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28090224/computerized-tomography-guided-paracentesis-an-effective-alternative-to-bedside-paracentesis
#13
Vinaya Gaduputi, Hassan Tariq, Chaitanya Chandrala, Sailaja Sakam, Naeem Abbas, Sridhar Chilimuri
BACKGROUND: Ascites remains the most common cause of hospitalization among patients with decompensated cirrhosis. Paracentesis is a relatively safe procedure with low complication rates. Computerized tomography (CT)-guided therapeutic paracentesis could be a safe and effective alternative to unaided or aided (ultrasonogram-guided) bedside paracentesis. In this retrospective study, we aimed to compare the efficacy, safety, and cost-effectiveness of CT-guided paracentesis with bedside paracentesis...
February 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28089887/ureteral-stone-diameter-on-computerized-tomography-coronal-reconstructions-is-clinically-important-and-underreported
#14
Mustafa Kadihasanoglu, Tracy Marien, Nicole L Miller
OBJECTIVES: The aim of this study is to compare the maximum stone diameter of ureteral stones in the coronal plane to the axial and determine the clinical significance of the coronal diameter. METHODS: A retrospective chart review was performed on patients seen in clinic between September 2013 and November 2015.Patients were included if they had a history of ureteral stone noted on CT performed with coronal reconstructions. Patients were excluded if they had multiple ureteral stones, history of upper urinary tract abnormalities, need for urgent intervention, or no follow-up...
January 12, 2017: Urology
https://www.readbyqxmd.com/read/28089421/microbiology-and-treatment-of-brain-abscess
#15
REVIEW
Itzhak Brook
Brain abscess is a focal pyogenic infection of the brain's parenchyma. The most frequent intracranial locations (in descending order of frequency) are: frontal-temporal, frontal-parietal, partial, cerebellar, and occipital lobes. The major predisposing factors are: an associated contiguous focus of infection, trauma, and hematogenous spread from a distant focus. The microbial etiology depends on the site of the primary infection; the patient's age, underlying condition, and immune status; and the geographic location...
January 12, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28081128/radiation-exposure-from-diagnostic-imaging-in-a-cohort-of-pediatric-transplant-recipients
#16
Alexandra Seal, Michael Hawkes, Ravi Bhargava, Michelle Noga, Jutta Preiksaitis, Curtis Mabilangan, Joan Robinson
Recipients of solid organ transplants (SOT) have extensive diagnostic imaging (DI). The purpose of this study was to quantify this exposure. Children from northern Alberta with SOTs at Stollery Children's Hospital, Edmonton, Alberta January 1, 2006, to July 31, 2012, were included. Effective doses of radiation were estimated using published norms for DI performed post-transplant up to October 16, 2014. The 54 eligible children had 6215 DI studies (5628 plain films, 293 computerized tomography (CT) scans, 149 positron emission topography (PET) -CT scans, 47 nuclear medicine scans and 98 cardiac catheterizations)...
2017: PloS One
https://www.readbyqxmd.com/read/28079847/relationship-between-abnormalities-on-high-resolution-computerized-tomography-pulmonary-function-and-bronchoalveolar-lavage-in-progressive-systemic-sclerosis
#17
Gulfidan Cakmak, Tuba Selcuk Can, Sule Gundogdu, Canan Akman, Hande Ikitimur, Benan Musellim, Gul Ongen
:  Introduction and aim: Progressive systemic sclerosis (pSS) is a multisystemic connective tissue disease characterized by fibrosis of the skin and internal organs including lung. The mechanisms that leads to progressive lung fibrosis in scleroderma remain obscure. In this study, we aimed to investigate the correlation between HRCT findings and patients' clinical and functional status and the degree of alveolitis based on the BAL resultsMaterials and methods: 65 patients with pSS were evaluated...
December 23, 2016: Sarcoidosis, Vasculitis, and Diffuse Lung Diseases: Official Journal of WASOG
https://www.readbyqxmd.com/read/28077892/accuracy-of-conventional-diagnostic-methods-for-identifying-structural-changes-in-patients-with-focal-epilepsy
#18
Nazim Dakaj, Jera Kruja, Fisnik Jashari, Dren Boshnjaku, Nexhat Shatri, Kamber Zeqiraj
BACKGROUND: Epilepsy is a neurological disorder characterized by abnormal firing of nerve impulses in the brain. AIM: This study aims to investigate the frequency of appearance of pathological changes in conventional examination methods (electroencephalography-EEG, brain computerized tomography -CT or brain magnetic resonance imaging - MRI) in patients with epilepsy, and relationship between clinical manifestations and localization of changes in CT or MRI. METHODS: In this study we have included 110 patients with focal epilepsy who fulfilled the inclusion criteria out of 557 initially diagnosed patients...
October 2016: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28077378/peripheral-skeleton-bone-strength-is-positively-correlated-with-total-and-dairy-protein-intakes-in-healthy-postmenopausal-women
#19
Claire Durosier-Izart, Emmanuel Biver, Fanny Merminod, Bert van Rietbergen, Thierry Chevalley, François R Herrmann, Serge L Ferrari, René Rizzoli
BACKGROUND: Bone mineral content (BMC) and bone mineral density (BMD) are positively correlated with dietary protein intakes, which account for 1-8% of BMC and BMD variances. However, the relation between bone strength and microstructure, which are variables that are not captured by areal bone mineral density (aBMD), and dietary protein intakes, particularly from specific dietary sources, has not been clearly established. OBJECTIVE: We investigated the association between the peripheral skeleton-predicted failure load and stiffness, bone microstructure, and dietary protein intakes from various origins (animal, divided into dairy and nondairy, and vegetable origins) in healthy postmenopausal women...
January 11, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28072751/duodenal-plexiform-fibromyxoma-as-a-cause-of-obscure-upper-gastrointestinal-bleeding-a-case-report
#20
Demetrios Moris, Evangelia Spanou, Stavros Sougioultzis, Nikolaos Dimitrokallis, Polyxeni Kalisperati, Ioanna Delladetsima, Evangelos Felekouras
RATIONALE: We are reporting the first-to our knowledge-case of duodenal Plexiform Fibromyxoma causing obscure upper gastrointestinal bleeding. PATIENT CONCERNS: Plexiform fibromyxoma triggered recurrent upper gastrointestinal bleeding episodes in a 63-year-old man who remained undiagnosed, despite multiple hospitalizations, extensive diagnostic workups and surgical interventions (including gastrectomies), for almost 17 years. DIAGNOSES-INTERVENTIONS: During hospitalization for the last bleeding episode, an upper gastrointestinal endoscopy revealed an intestinal hemorrhagic nodule...
January 2017: Medicine (Baltimore)
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