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https://www.readbyqxmd.com/read/28528493/clinical-investigation-of-chronic-subdural-hematoma-with-impending-brain-herniation-on-arrival
#1
Hiroaki Matsumoto, Hiroaki Hanayama, Takashi Okada, Yasuo Sakurai, Hiroaki Minami, Atsushi Masuda, Shogo Tominaga, Katsuya Miyaji, Ikuya Yamaura, Yasuhisa Yoshida
Chronic subdural hematoma (CSDH) with brain herniation signs is rarely seen in the emergent department. As such, there are few cumulative data to analyze such cases. In this study, we evaluated the clinical features, risk factors, and rates of completion with impending brain herniation on arrival in a cohort study. We analyzed 492 consecutive patients with CSDH between January 2010 and October 2015. First, we analyzed the clinical factors and compared them between patients with or without brain herniation signs on admission...
May 20, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28528479/accuracy-of-a-new-intraoperative-cone-beam-ct-imaging-technique-artis-zeego-ii-compared-to-postoperative-ct-scan-for-assessment-of-pedicle-screws-placement-and-breaches-detection
#2
Virginie Cordemans, Ludovic Kaminski, Xavier Banse, Bernard G Francq, Olivier Cartiaux
PURPOSE: The goal of this study was to compare the accuracy of a novel intraoperative cone beam computed tomography (CBCT) imaging technique with that of conventional computed tomography (CT) scans for assessment of pedicle screw placement and breach detection. METHODS: Three hundred and forty-eight pedicle screws were inserted in 58 patients between October 2013 and March 2016. All patients had an intraoperative CBCT scan and a conventional CT scan to verify the placement of the screws...
May 20, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28528465/contrast-induced-nephropathy-cin-of-patients-with-renal-dysfunction-in-ct-examination
#3
Yasuhiro Fukushima, Hitomi Miyazawa, Junpei Nakamura, Ayako Taketomi-Takahashi, Takayuki Suto, Yoshito Tsushima
PURPOSE: To investigate the incidence and risk factors of contrast induced nephropathy (CIN) after contrast enhanced (CE) computed tomography (CT) in patients with renal dysfunction. MATERIALS AND METHODS: Two hundred sixteen inpatients with estimated glomerular filtration rates (eGFR) <60 ml/min/1.73 m(2) underwent CE CT using iodine doses of 420 or 480 mg I/kg. Data of all enrolled patients was collected for baseline serum creatinine level (SCr), post-CE CT SCr within 3 days after CE CT, and conditions considered risk factors for CIN [renal dysfunction, contrast media dose, advanced age, diabetes mellitus, no intravenous hydration, cardiac dysfunction (left ventricular ejection fraction <60%) and intensive-care unit (ICU) admission]...
May 20, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28528461/novel-imaging-using-a-touchless-display-for-computer-assisted-hepato-biliary-surgery
#4
Yukio Oshiro, Kenoki Ohuchida, Toshiyuki Okada, Makoto Hashizume, Nobuhiro Ohkohchi
PURPOSE: We developed a touchless display system that allows the user to control the medical imaging software via hand gestures in the air. We conducted this study to verify the effectiveness of this novel touchless display system as a tool for assisting with surgical imaging. METHODS: The patient's computed tomography (CT) data are generally observed on a display during surgery. The "Dr. aeroTAP" touchless display system was developed to generate virtual mouse events based on the position of one hand...
May 20, 2017: Surgery Today
https://www.readbyqxmd.com/read/28528454/new-insights-into-pericarditis-mechanisms-of-injury-and-therapeutic-targets
#5
REVIEW
Bo Xu, Serge C Harb, Paul C Cremer
PURPOSE OF REVIEW: This review article aims to provide a contemporary insight into the pathophysiological mechanisms of and therapeutic targets for pericarditis, drawing distinction between autoinflammatory and autoimmune pericarditis. RECENT FINDINGS: Recent research has focused on the distinction between autoinflammatory and autoimmune pericarditis. In autoinflammatory pericarditis, viruses can activate the sensor molecule of the inflammasome, which results in downstream release of cytokines, such as interleukin-1, that recruit neutrophils and macrophages to the site of injury...
July 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28528430/risk-classification-of-highly-sensitive-troponin-i-predict-presence-of-vulnerable-plaque-assessed-by-dual-source-coronary-computed-tomography-angiography
#6
Ting Liu, Guan Wang, Peiling Li, Xu Dai
Patients presenting to the emergency department with acute chest pain, negative conventional troponin and electrocardiogram require serial testing to rule out acute coronary syndrome (ACS). We studied the association of highly sensitive troponin (hsTn) I with vulnerable plaque features as detected by coronary dual source computed tomography angiography (DSCTA) and determined whether hsTn I at the time of presentation combined with early DSCTA could improve classification of patients as high-risk or low risk for ACS...
May 20, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28528370/systematic-radiographic-evaluation-of-three-potential-implantation-sites-for-a-semi-implantable-bone-conduction-device-in-52-patients-after-previous-mastoid-surgery
#7
Bernhard G Weiss, Mattis Bertlich, Rebecka Scheele, Martin Canis, Mark Jakob, Jan M Sohns, Friedrich Ihler
The aim of this study was the evaluation of three localizations for the implantation of a semi-implantable transcutaneous bone conduction device after previous mastoid surgery. This is a retrospective review of electronic datasets of cranial computed tomography studies. The study setting is one tertiary referral center and included 52 consecutive adult patients (60 temporal bones) with a history of mastoid surgery. The intervention was virtual placement of the device with a planning software within the remaining mastoid as well as dorsal of the sigmoid sinus and caudal of the transverse sinus (retrosigmoidal localization) and dorsocranial of the parietomastoid suture and cranial of the transverse sinus (parietal localization)...
May 20, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28528295/a-machine-learning-graph-based-approach-for-3d-segmentation-of-bruch-s-membrane-opening-from-glaucomatous-sd-oct-volumes
#8
Mohammad Saleh Miri, Michael D Abràmoff, Young H Kwon, Milan Sonka, Mona K Garvin
Bruch's membrane opening-minimum rim width (BMO-MRW) is a recently proposed structural parameter which estimates the remaining nerve fiber bundles in the retina and is superior to other conventional structural parameters for diagnosing glaucoma. Measuring this structural parameter requires identification of BMO locations within spectral domain-optical coherence tomography (SD-OCT) volumes. While most automated approaches for segmentation of the BMO either segment the 2D projection of BMO points or identify BMO points in individual B-scans, in this work, we propose a machine-learning graph-based approach for true 3D segmentation of BMO from glaucomatous SD-OCT volumes...
May 6, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28528280/aortic-involvement-in-relapsing-polychondritis
#9
Maëlle Le Besnerais, Laurent Arnaud, Jonathan Boutémy, Boris Bienvenu, Hervé Lévesque, Zahir Amoura, Isabelle Marie
OBJECTIVE: To assess prevalence of aortic involvement in relapsing polychondritis (RP) patients; to evaluate clinical features and long-term outcome of RP patients exhibiting aortitis, aortic ectasia and/or aneurysm. METHODS: 172 RP patients underwent aortic computed tomography (CT)-scan; they were seen in 3 medical centers. RESULTS: 11 patients (6.4%) had aortic involvement, occurring within a median time of 2 years after RP diagnosis. CT-scan showed isolated aortitis (n=2); the 9 other patients exhibited: aortitis and aortic aneurysm (n=2) or ectasia (n=1), isolated aortic aneurysm (n=4) or ectasia (n=2); aortic localizations were as follows: thoracic (n=6), abdominal (n=2), thoracic and abdominal (n=4) aorta...
May 17, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28528150/long-term-prognosis-of-patients-with-intramural-course-of-coronary-arteries-assessed-with-ct-angiography
#10
Aukelien C Dimitriu-Leen, Alexander R van Rosendael, Jeff M Smit, Tessa van Elst, Nan van Geloven, Teemu Maaniitty, J Wouter Jukema, Victoria Delgado, Arthur J H A Scholte, Antti Saraste, Juhani Knuuti, Jeroen J Bax
OBJECTIVES: The aim of the present study was to evaluate, in low-to-intermediate pre-test probability patients who were referred for coronary computed tomography angiography (CTA) and did not show obstructive coronary artery disease (CAD), whether an intramural course of a coronary artery is associated with worse outcome compared with patients without an intramural course of the coronary arteries. BACKGROUND: The prognostic value of an intramural course of the coronary arteries on coronary CTA in patients without obstructive CAD is not well-known...
May 11, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28528146/prognostic-value-of-coronary-ct-angiography-with-selective-pet-perfusion-imaging-in-coronary-artery-disease
#11
Teemu Maaniitty, Iida Stenström, Jeroen J Bax, Valtteri Uusitalo, Heikki Ukkonen, Sami Kajander, Maija Mäki, Antti Saraste, Juhani Knuuti
OBJECTIVES: The purpose of this study was to evaluate the prognostic value of sequential hybrid imaging strategy in which positron emission tomography (PET) perfusion imaging is performed selectively in patients with suspected obstructive coronary artery disease (CAD) on coronary computed tomography angiography (CTA). BACKGROUND: Coronary CTA is an accurate diagnostic test for excluding obstructive CAD. However, the positive predictive value is suboptimal. METHODS: We investigated 864 consecutive symptomatic patients with intermediate probability of CAD who adhered to the sequential imaging approach...
May 15, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28528063/an-involuntary-and-unexpected-treatment-of-nutcracker-esophagus
#12
Diane Mege, Alban Benezech, Henri de Lesquen, Véronique Vitton, Pascal-Alexandre Thomas
A 76-year-old woman complained of painful dysphagia and loss of weight. Esophagoscopy results were negative, whereas computed tomography (CT) disclosed a 25-mm mediastinal tumor without a connection to the esophagus. A diagnosis of nutcracker esophagus was made on high-resolution esophageal manometry. Peroral endoscopic esophageal myotomy failed to improve the symptoms. Right video thoracoscopy allowed resection of the tumor, which looked like a neurogenic tumor of the posterior mediastinum that developed from the right vagus nerve...
June 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28528061/real-time-computed-tomography-highlights-pulmonary-parenchymal-evolution-during-ex%C3%A2-vivo-lung-reconditioning
#13
Edouard Sage, Julien De Wolf, Philippe Puyo, Pierre Bonnette, Matthieu Glorion, Nicolas Salley, Antoine Roux, Ngai Liu, Alain Chapelier
Ex vivo lung perfusion (EVLP) has been developed as a method to reassess and recondition marginal lungs. However, evaluation during procedures is limited to a combination of physiologic variables such as gas exchange, pulmonary mechanics, and pulmonary vascular resistance. The aim of this study was to analyze the feasibility of real-time computed tomographic (CT) imaging to improve the evaluation of the lung during EVLP procedures.
June 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28528057/drains-and-blushes-a-case-of-impaired-venous-drainage-mimicking-pulmonary-torsion
#14
Nazia Alvi, Raju Z Abraham, Philip Alexander, Thomas Betlej, Arun Jagannathan
A 47-year-old woman underwent elective right upper lobectomy with pneumopexy for adenocarcinoma. On postoperative day 2, she had tachycardia, and her chest radiograph, bronchoscopy, and computed tomography chest scan were suspicious for pulmonary torsion. She underwent emergent thoracotomy, and the right middle lobe was not torsed; it was purple, engorged, and not ventilated. The patient did well after right middle lobectomy. We suspect compromised middle lobe pulmonary venous drainage due to angulation after compensatory expansion...
June 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28528021/multicystic-peritoneal-mesothelioma-a-short-review
#15
Chi-Hao Zhang, Ji-Wei Yu, Meng Luo
Multicystic peritoneal mesothelioma (MCPM) is a rare neoplasm, predominantly affecting female patients during their reproductive years. The lesion is usually distributed diffusely in the abdomen and pelvis, but the peritoneum of the pelvic organs is the most common site. MCPM is composed of fluid-filled translucent cysts, connected by varying amounts of fibrous tissue, and lined by a layer of mesothelial cells. Because of the rarity of this disease, the pathogenesis and natural history of MCPM remain poorly understood and continuously debated...
March 31, 2017: Current Problems in Cancer
https://www.readbyqxmd.com/read/28528016/the-influence-of-humeral-neck-shaft-angle-and-glenoid-lateralization-on-range-of-motion-in-reverse-shoulder-arthroplasty
#16
Birgit S Werner, Jean Chaoui, Gilles Walch
BACKGROUND: Recent developments in reverse shoulder arthroplasty (RSA) have focused on changes in several design-related parameters, including humeral component design, to allow for easier convertibility. Alterations in humeral inclination and offset on shoulder kinematics may have a relevant influence on postoperative outcome. This study used a virtual computer simulation to evaluate the influence of humeral neck shaft angle and glenoid lateralization on range of motion in onlay design RSA...
May 17, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28527967/feasibility-and-safety-of-the-transbronchial-access-tool-for-peripheral-pulmonary-nodule-and-mass
#17
Mark R Bowling, Craig Brown, Carlos J Anciano
BACKGROUND: Navigational bronchoscopy and other imaging modalities have improved the ability to evaluate pulmonary nodules/mass. Many of these lesions are located outside the bronchial airway and are difficult to access even with these devices. The Transbronchial Access Tool (Medtronic, Minneapolis, MN) allows the bronchoscopist to create a pathway from the bronchial airway, across the lung parenchyma, and into the target lesion. We are reporting the feasibility and safety of this new device...
May 17, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28527963/clinical-significance-of-spontaneous-pneumomediastinum
#18
Brittany A Potz, Linda H Chao, Thomas T Ng, Ikenna C Okereke
BACKGROUND: Spontaneous pneumomediastinum (SPM) is classified as free air in the mediastinum in the absence of any precipitating cause. It is relatively uncommon, and the clinical significance and risk associated with SPM is not well understood and has not been widely documented in the literature. Our goals were to determine the outcomes of patients who presented with SPM and to determine predictors of severe pathology associated with SPM. METHODS: From 2004 through 2013, a retrospective review was conducted of patients who presented with SPM to our institution...
May 18, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28527929/new-predictors-of-complications-in-carotid-body-tumor-resection
#19
Gloria Y Kim, Peter F Lawrence, Rameen S Moridzadeh, Kate Zimmerman, Alberto Munoz, Kuauhyama Luna-Ortiz, Gustavo S Oderich, Juan de Francisco, Jorge Ospina, Santiago Huertas, Leonardo R de Souza, Thomas C Bower, Steven Farley, Hugh A Gelabert, Marcus R Kret, E John Harris, Giovanni De Caridi, Francesco Spinelli, Matthew R Smeds, Christos D Liapis, John Kakisis, Anastasios P Papapetrou, Eike S Debus, Christian-A Behrendt, Edgar Kleinspehn, Joshua D Horton, Firas F Mussa, Stephen W K Cheng, Mark D Morasch, Khurram Rasheed, Matthew E Bennett, Jean Bismuth, Alan B Lumsden, Christopher J Abularrage, Alik Farber
OBJECTIVE: This study examined the relationship between two new variables, tumor distance to base of skull (DTBOS) and tumor volume, with complications of carotid body tumor (CBT) resection, including bleeding and cranial nerve injury. METHODS: Patients who underwent CBT resection between 2004 and 2014 were studied using a standardized, multi-institutional database. Demographic, perioperative, and outcomes data were collected. CBT measurements were determined from computed tomography, magnetic resonance imaging, and ultrasound examination...
June 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28527853/influence-of-intracanal-materials-in-vertical-root-fracture-pathway-detection-with-cone-beam-computed-tomography
#20
Kamile Leonardi Dutra, Camila Pachêco-Pereira, Eduardo Antunes Bortoluzzi, Carlos Flores-Mir, Manuel O Lagravère, Márcio Corrêa
INTRODUCTION: Investigating the vertical root fracture (VRF) pathway under different clinical scenarios may help to diagnose this condition properly. We aimed to determine the capability and intrareliability of VRF pathway detection through cone-beam computed tomographic (CBCT) imaging as well as analyze the influence of different intracanal and crown materials. METHODS: VRFs were mechanically induced in 30 teeth, and 4 clinical situations were reproduced in vitro: no filling, gutta-percha, post, and metal crown...
May 17, 2017: Journal of Endodontics
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