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Jang W Yoon, Sara Ganaha, Clarence Watridge
BACKGROUND: Congenital agenesis of the inferior vena cava (IVC) can lead to the development of a prominent venous collateral system within and around the spine due to the development of venous collaterals. Surgery on such patients can harbor the risk of catastrophic bleeding or decompensation of a delicate venous drainage pattern during spinal manipulation or even epidural exploration. CASE DESCRIPTION: A 49-year old man with a congenital agenesis of the IVC presented with signs and symptoms of an L5 radiculopathy...
March 12, 2018: World Neurosurgery
Xiaopeng Yang, Jae Do Yang, Hong Pil Hwang, Hee Chul Yu, Sungwoo Ahn, Bong-Wan Kim, Heecheon You
BACKGROUND AND OBJECTIVE: The present study developed an effective surgical planning method consisting of a liver extraction stage, a vessel extraction stage, and a liver segment classification stage based on abdominal computerized tomography (CT) images. METHODS: An automatic seed point identification method, customized level set methods, and an automated thresholding method were applied in this study to extraction of the liver, portal vein (PV), and hepatic vein (HV) from CT images...
May 2018: Computer Methods and Programs in Biomedicine
C T Bahadir, G C Ecemis, H Atmaca
PURPOSE: The aim of this study was to investigate the possible association of insulin-like growth factor-1 (IGF-1) with the pathogenesis of non-functioning adrenocortical adenomas (NFAs). METHODS: This study included 50 female patients (mean age 54 years) with NFAs, 55 patients (mean age 48 years; 20 male, 35 female) with acromegaly and 38 female control subjects (mean age 58 years). Body mass index (BMI) and waist circumference (WC) of the subjects were recorded and blood samples for IGF-1 were taken...
March 14, 2018: Journal of Endocrinological Investigation
Xuan Du, Wen Lu, Zijun Lu, Xinyu Shao, Chunhong Hu, Bimin Shi
Background: To study the effectiveness of exenatide with metformin and sequential treatment with exenatide and glargine added to metformin and their influence on insulin sensitivity and adipose distribution. Methods: 20 newly diagnosed obese type 2 diabetic patients were enrolled, and 2-month washout treatment of metformin, 6-month exenatide treatment, and 6-month glargine treatment were administrated sequentially accompanied with previous metformin. Glucolipid metabolic parameters were compared among groups...
2018: Journal of Diabetes Research
Furkan Diren, Serra Sencer, Tayfun Hakan
Objective: Arteriovenous malformation (AVM) is the most common form of intracranial vascular malformations in adults. Intracranial pediatric AVMs are rare. AVM located in the vicinity of the brain stem in children are even more rare. Case report: This study reports a rare case of acute obstructive hydrocephalus following aqueductal stenosis caused by an unruptured grade IV perimesencephalic arteriovenous malformation. An 11-year-old boy admitted to the hospital with progressive headache, nausea and vomiting throughout a month...
2018: Open Neuroimaging Journal
A Skiada, C Lass-Floerl, N Klimko, A Ibrahim, E Roilides, G Petrikkos
The diagnosis and treatment of mucormycosis are challenging. The incidence of the disease seems to be increasing. Hematological malignancies are the most common underlying disease in countries with high income and uncontrolled diabetes in developing countries. Clinical approach to diagnosis lacks sensitivity and specificity. Radiologically, multiple (≥10) nodules and pleural effusion are reportedly associated with pulmonary mucormycosis. Another finding on computerized tomography (CT) scan, which seems to indicate the presence of mucormycosis, is the reverse halo sign...
April 1, 2018: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
Marco Tubaro
No abstract text is available yet for this article.
February 2018: Journal of Cardiovascular Medicine
William Becker, Philippe Hujoel, Burton E Becker
BACKGROUND: Numerous studies indicate implants placed immediately after extraction or with minimally invasive procedures have excellent long-term success and survival rates. There is general agreement that implants must be stable after implant placement. This study evaluated implant stability changes from the time of implant placement to second stage (prior to restoration). Resonance frequency analysis (RFA) was determined for two commercially available units (Osstell, Osstell USA, Columbia, MD and Penguin, Penguin Integration Diagnostics, Sweden)...
March 13, 2018: Clinical Implant Dentistry and related Research
Cristiano Tomasi, Mauro Donati, Denis Cecchinato, Isacco Szathvary, Enrico Corrà, Jan Lindhe
OBJECTIVE: To examine if (i) characteristics of the fresh extraction socket site influenced subsequent dimensional alterations and (ii) placement of deproteinized bovine mineral in the socket affected volumetric change during healing. MATERIALS AND METHODS: Twenty seven subjects and 28 extraction sites were included. Immediately after the removal of the tooth and after 6 months of healing, stone and virtual models of the jaw were produced. A cone beam computerized tomography scan was obtained immediately after extraction and the thickness of the buccal bone wall at the extraction site was measured...
March 13, 2018: Clinical Oral Implants Research
Benito Velayos, L Del Olmo, L Merino, M Valsero, J M González
INTRODUCTION: The development of novel mechanical endoscopic closure systems allows now the management of some gastrointestinal fistula types in a minimally invasive way. However, the correct location of the fistulous tract is essential to achieve successful endoscopic closure. CASE REPORT: A 69-year-old woman with high risk for surgery presented with recurrent cystitis, pneumaturia, and enteruria 2 months after medical-treated diverticulitis. Computerized tomography demonstrated colovesical fistula but colonoscopy could not locate the fistulous opening...
March 12, 2018: International Journal of Colorectal Disease
Navid Pourtaheri, Bahman Guyuron
PURPOSE: To correlate the location and size of supraorbital notches (SON) and foramen (SOF) with migraine headache symptoms in a migraine patient population. METHODS: A retrospective review was performed on consecutive patients who were candidates for frontal migraine surgery with available preoperative computed tomography (CT) images of the face/perinasal sinuses. The supraorbital anatomy from CT images was analyzed and correlated with presenting migraine headache symptoms...
February 14, 2018: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
Connie L Parks, Keith L Monson
This study employed an automated facial recognition system as a means of objectively evaluating biometric correspondence between a ReFace facial approximation and the computed tomography (CT) derived ground truth skin surface of the same individual. High rates of biometric correspondence were observed, irrespective of rank class (Rk ) or demographic cohort examined. Overall, 48% of the test subjects' ReFace approximation probes (n=96) were matched to his or her corresponding ground truth skin surface image at R1 , a rank indicating a high degree of biometric correspondence and a potential positive identification...
February 27, 2018: Forensic Science International
Lorna G Keenan, Kathy Rock, Aini Azmi, Osama Salib, Charles Gillham, Orla McArdle
INTRODUCTION: Previous studies have investigated the anatomical distribution of para-aortic lymph nodes (PAN) in patients with cervical cancer. However, an atlas for accurate clinical target volume (CTV) delineation has yet to be defined. The purpose of this study was to design and verify a computerized tomography (CT) atlas to provide guidance for contouring the PAN CTV in patients with cervical cancer. MATERIALS AND METHODS: This prospective study included 21 cervical cancer patients (design cohort) with 39 pathological PAN identified on (18)F-FDG PET-CT...
March 6, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
Udaya Ralapanawa, Thilak Jayalath, Dhanusha Senadhira
BACKGROUND: Acute pancreatitis is an inflammatory condition with varying severity and a range of local and systemic complications. Here we report a patient with acute necrotizing pancreatitis complicated with a true non ST elevation myocardial infarction. CASE PRESENTATION: A 58 year old lady was admitted to our unit with acute onset epigastric pain and vomiting for 4 h duration. Following admission she complained of retrosternal tightening type of a chest pain...
March 9, 2018: BMC Research Notes
Galinos Barmparas, Deven C Patel, Nikhil T Linaval, Navpreet K Dhillon, Kavita A Patel, Daniel R Margulies, Eric J Ley
BACKGROUND: The presence of an abdominal seatbelt sign (ASBS) following a motor vehicle collision (MVC) is associated with a high risk for occult intraabdominal injury, prompting imaging studies and a prolonged period of clinical observation. The aim of this study was to determine how a negative computerized tomography (CT) of the abdomen/pelvis (A/P) can serve in the safe disposition of these patients. Our hypothesis was that in the setting of a negative CT, the presence of occult intra-abdominal injuries requiring a delayed intervention is extremely unlikely...
March 8, 2018: Journal of Trauma and Acute Care Surgery
Pedro Martinez-Seijas, Luis A Díaz-Galvis, Josué Hernando, Ignacio O Leizaola-Cardesa, Antonio Aguilar-Salvatierra, Gerardo Gómez-Moreno
BACKGROUND: Over the years, many materials have been used in orbital reconstruction and cranioplasty. Among the materials in current use, polymethyl methacrylate (PMMA) offers a high degree of compatibility with human tissue. OBJECTIVE: This work describes a new, custom-made, 3D printing-aided, prosthetic fabrication process for orbital and/or cranial reconstruction using PMMA. METHODS: On the basis of information obtained from computerized tomography scanning processed in Digital Imaging and Communication in Medicine format and exported to treatment planning software, a 3D prosthesis master model was designed and digitally printed...
March 8, 2018: Journal of Craniofacial Surgery
Szu-Ying Tsai, Shan-Ying Wang, Yu-Chien Shiau, Yen-Wen Wu
Hypertrophic cardiomyopathy (HCM) is an often under-diagnosed cause of left ventricular hypertrophy (LVH). It affects 1/500 of the population, is the most commonly inherited cardiovascular disorder, and can present in apical, concentric, or septal forms. Although most patients are asymptomatic, sudden cardiac death can be the initial presentation of HCM. By retrospectively enrolling patients suspected of having three different types of HCM in the absence of epicardial coronary stenosis, we aimed to examine systolic and diastolic dysfunction and perfusion abnormalities using both Doppler echocardiography and state-of-the-art gated single-photon emission computerized tomography (SPECT) myocardial perfusion imaging (MPI) with a cadmium-zinc-telluride camera and thallium-201...
March 8, 2018: Scientific Reports
İlker Burak Arslan, Sinan Uluyol, Erhan Demirhan, Süreyya Hikmet Kozcu, Yeliz Pekçevik, İbrahim Çukurova
Objective: The risk factors for the development of retention cysts of the maxillary sinuses (RCMs) are not clear, although RCMs are common findings on radiographic images. This study was conducted to evaluate the correlation between RCMs and other nasal-paranasal anomalies and to demonstrate the possible effects of these anomalies on the development of RCMs. Methods: In the study, paranasal sinus computerized tomography (PNsCT) images from 5166 patients were retrospectively reviewed...
December 2017: Turkish Archives of Otorhinolaryngology
Naoyuki Fujita, Mitsuhiro Tambo, Yuichi Terado, Michio Fujita, Takatsugu Okegawa, Kikuo Nutahara
We report a case of a vesicoenteric fistula arising from an adenocarcinoma of ectopic pancreatic tissue in a Meckel diverticulum in a 58-year-old man. The patient suffered from refractory micturition pain and increased urinary frequency. Computerized tomography with a contrast agent showed a ring-shaped enhanced mass near the dome of the urinary bladder. Magnetic resonance imaging showed a cystic mass close to the urinary bladder with partly irregular wall and fistula formation to the urinary bladder. Surgical findings showed a Meckel diverticulum in the ileum, which formed a fistula with the urinary bladder, and Meckel diverticulectomy and partial cystectomy were performed...
January 2018: Case Reports in Oncology
Nicholas Farkas, Vasha Kaur, Arun Shanmuganandan, John Black, Chantal Redon, Adam E Frampton, Nicholas West
Introduction: Gallstone sigmoid ileus is a rare although serious complication of cholelithiasis resulting in large bowel obstruction. The condition accounts for 4% of all gallstone ileus patients. There are no recognized management guidelines currently. Management strategies range from minimally invasive endoscopy and lithotripsy to substantial surgery. We aim to identify trends when managing patients with gallstone sigmoid ileus to help improve outcomes. Methods: Literature searches of EMBASE, Medline and by hand were conducted...
March 2018: Annals of Medicine and Surgery
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