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Massimo Del Fabbro, Stefano Corbella, Patrick Sequeira-Byron, Igor Tsesis, Eyal Rosen, Alessandra Lolato, Silvio Taschieri
BACKGROUND: When primary root canal therapy fails, periapical lesions can be retreated with or without surgery. Root canal retreatment is a non-surgical procedure that involves removal of root canal filling materials from the tooth, followed by cleaning, shaping and obturating of the canals. Root-end resection is a surgical procedure that involves exposure of the periapical lesion through an osteotomy, surgical removal of the lesion, removal of part of the root-end tip, disinfection and, commonly, retrograde sealing or filling of the apical portion of the remaining root canal...
October 19, 2016: Cochrane Database of Systematic Reviews
Y-C Huang, J Xiao, W Y Leung, W W Lu, Y Hu, K D Luk
Previous human study suggested that fresh-frozen intervertebral disc allograft transplantation can relieve neurological symptoms and restore segmental kinematics. Before wide clinical application, research into the pathophysiology of the postoperative disc allograft is needed. One important question that remains to be answered in disc allografting is the healing process of the host-graft interface and the subsequent change of the endplates. With the goat model for lumbar disc allografting, histology, micro-computed tomography analysis, scanning electron microscopy and energy-dispersive X-ray spectroscopy mapping were applied to evaluate the healing of the host-graft interfaces, the remodelling of subchondral bone, and the changes of the bony and cartilaginous endplates after transplantation...
October 19, 2016: European Cells & Materials
Rohan Chawla, Ravi Bypareddy, Koushik Tripathy, Satya Sudha Daggumili, Ankit Singh Tomar
Congenital retinal macrovessels (CRM) are rarely reported, aberrant, large branches of retinal vessels that can be both arteries and veins; however, they are more commonly veins that cross the horizontal raphe to either supply or drain the macula. In this brief report, the authors discuss optical coherence tomography angiography features of CRM in a 12-year-old male patient presenting with low visual acuity in the right eye since childhood. To the authors' knowledge, this is the first such report published in the literature...
October 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
Rohan Chawla, Kanhaiya Mittal, Rajpal Vohra
The authors report the use of optical coherence tomography angiography (OCTA) (DRI OCT Triton; Topcon, Tokyo, Japan) to localize, characterize, and confirm the presence of a choroidal neovascular membrane in a patient of focal choroidal excavation (FCE) with recent-onset metamorphopsia and visual blurring. En face OCTA images just above the level of the retinal pigment epithelium-Bruch's membrane complex typically showed the presence of a glomerulus-like neovascular network with an adjacent dark area suggestive of a Type 2 choroidal neovascularization (CNV)...
October 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
Michael I Seider, Dilraj S Grewal, Prithvi Mruthyunjaya
Portable, hand-held optical coherence tomography (OCT) revealed three clinically relevant yet not ophthalmoscopically detected or confirmed manifestations of retinoblastoma in a single patient with familial bilateral disease. Specifically, OCT showed new retinal tumors, new vitreous seeds, and tumor recurrence before they could be detected or confirmed by ophthalmoscopy. [Ophthalmic Surg Lasers Imaging Retina. 2016;47:965-968.].
October 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
Ricardo Noguera Louzada, Daniela Ferrara, Eduardo Amorim Novais, Eric Moult, Emily Cole, Mark Lane, James Fujimoto, Jay S Duker, Caroline R Baumal
To describe the appearance of a scleral-derived feeder vessel in a highly myopic eye with secondary choroidal neovascularization (CNV) as visualized on both en face high-speed swept-source (SS) optical coherence tomography angiography (OCTA) prototype, and a commercially available spectral-domain (SD) OCTA, with the corresponding en face and cross-sectional structural OCT images. In this case report, a 60-year-old white male presented with high myopia and secondary CNV in the right eye, previously treated with anti-vascular endothelial growth factor, and was imaged on both SD-OCT and SS-OCT...
October 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
Stefan J Lang, Bertan Cakir, Charlotte Evers, Franziska Ludwig, Clemens A K Lange, Hansjürgen T Agostini
BACKGROUND AND OBJECTIVE: The introduction of optical coherence tomography angiography (OCTA) provides new insights into the retinal vasculature. The aim of this study was to explore the value of OCTA in imaging retinal hemangioblastomas and monitoring laser treatment in patients with von Hippel-Lindau (VHL) disease. PATIENTS AND METHODS: Ten eyes of 10 patients with VHL disease were included in this retrospective case series. All patients underwent complete ophthalmological work-up including OCTA for retinal and optic nerve head hemangioblastoma...
October 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
Yuji Itoh, Daniel Petkovsek, Peter K Kaiser, Rishi P Singh, Justis P Ehlers
BACKGROUND AND OBJECTIVE: To assess the relationship between spectral-domain optical coherence tomography (SD-OCT) features and functional outcomes for diabetic macular edema (DME) undergoing treatment with intravitreal bevacizumab (Avastin; Genentech, South San Francisco, CA). PATIENTS AND METHODS: Institutional review board-approved, retrospective, consecutive case series of eyes receiving intravitreal bevacizumab (1.25 mg) for DME. SD-OCT features were evaluated and correlated with functional response to anti-vascular endothelial growth factor (VEGF) therapy...
October 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
Christiane Al-Haddad, Maamoun Abdul Fattah, Karine Ismail, Ziad Bashshur
BACKGROUND AND OBJECTIVE: To detect changes in the choroidal layer at the macular area in amblyopic eyes. PATIENTS AND METHODS: A cross-sectional study of 50 amblyopic patients (20 strabismic and 30 anisometropic) and 50 controls was done. Cross-sectional images using enhanced depth optical coherence tomography (OCT) were taken. Thicknesses were measured subfoveally and at 1,500 µm nasally, temporally, inferiorly, and superiorly. Submacular corresponding choroidal areas were also computed...
October 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
Luis Schiper, Bluma Linkowski Faintuch, Roberto José da Silva Badaró, Erica Aparecida de Oliveira, Victor E Arana Chavez, Elisangela Chinen, Joel Faintuch
OBJECTIVES: Conventional imaging methods are excellent for the morphological characterization of the consequences of osteonecrosis; however, only specialized techniques have been considered useful for obtaining functional information. To explore the affinity of radiotracers for severely devascularized bone, a new mouse model of isolated femur implanted in a subcutaneous abdominal pocket was devised. To maintain animal mobility and longevity, the femur was harvested from syngeneic donors...
October 1, 2016: Clinics
Felipe P Andrade, Roberto Montoro, Renan Oliveira, Gabriela Loures, Luana Flessak, Roberta Gross, Camille Donnabella, Andrea Puchnick, Lisa Suzuki, Rodrigo Regacini
OBJECTIVES: 1) To verify clinical signs correlated with appropriate cranial computed tomography scan indications and changes in the therapeutic approach in pediatric minor head trauma scenarios. 2) To estimate the radiation exposure of computed tomography scans with low dose protocols in the context of trauma and the additional associated risk. METHODS: Investigators reviewed the medical records of all children with minor head trauma, which was defined as a Glasgow coma scale ≥13 at the time of admission to the emergency room, who underwent computed tomography scans during the years of 2013 and 2014...
October 1, 2016: Clinics
Nathan Elie Frenk, Fernando Sebastianes, Antonio Marcondes Lerario, Maria Candida Barisson Villares Fragoso, Berenice Bilharinho Mendonca, Marcos Roberto de Menezes
OBJECTIVES: To evaluate the safety and long-term efficacy of computed tomography-guided percutaneous ethanol ablation for benign primary and secondary hyperfunctioning adrenal disorders. METHOD: We retrospectively evaluated the long-term results of nine patients treated with computed tomography-guided percutaneous ethanol ablation: eight subjects who presented with primary adrenal disorders, such as pheochromocytoma, primary macronodular adrenal hyperplasia and aldosterone-producing adenoma, and one subject with Cushing disease refractory to conventional treatment...
October 1, 2016: Clinics
Zhi-Gang Chu, Bo Sheng, Meng-Qi Liu, Fa-Jin Lv, Qi Li, Yu Ouyang
OBJECTIVES: To clarify differences between solitary pulmonary inflammatory lesions and peripheral lung cancers with contrast-enhanced computed tomography. METHODS: In total, 64 and 132 patients with solitary pulmonary inflammatory masses/nodules and peripheral lung cancers, respectively, were enrolled in this study. Their computed tomographic findings were summarized and compared retrospectively. RESULTS: Compared with the peripheral lung cancers, the inflammatory lesions were located closer to the pleura (p<0...
October 1, 2016: Clinics
Gleim Dias de Souza, Luciana Rodrigues Queiroz Souza, Ronaldo Máfia Cuenca, Bárbara Stephane de Medeiros Jerônimo, Guilherme Medeiros de Souza, Vinícius Martins Vilela
Introduction: Contrast computed tomography and magnetic resonance imaging are widely used due to its image quality and ability to study pancreatic and peripancreatic morphology. The understanding of the various subtypes of the disease and identification of possible complications requires a familiarity with the terminology, which allows effective communication between the different members of the multidisciplinary team. Aim: Demonstrate the terminology and parameters to identify the different classifications and findings of the disease based on the international consensus for acute pancreatitis ( Atlanta Classification 2012)...
July 2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
Otto Mauro Dos Santos-Rosa, Henrique Simonsen Lunardelli, Marcelo Augusto Fontenelle Ribeiro-Junior
Background: The pyogenic liver abscess has an incidence of 1.1/1,000 habitants. Mortality can reach 100%. The use of less invasive procedures diminish morbidity and hospital stay. Aim: Identify risk factors in patients who underwent percutaneous drainage guided by ultrasound as treatment. Method: Were analyzed 10 patients submitted to the method. Epidemiological characteristics, laboratory markers and imaging exams (ultrasound and CT) were evaluated...
July 2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
Shoaib Faruqi, Nalla Kishore, Richard Bodington, Salim Meghjee, Muthu Thirumaran
AIMS: In this retrospective study we assess the diagnostic yield of computed tomography pulmonary angiogram (CTPA) and the incidence of alterative and incidental diagnoses. METHODS: The results of all CTPA scans performed in our trust over a period of 18 months were reviewed and all diagnoses noted. Data collected was descriptively analysed. RESULTS: A total of 1138 scans were performed (56.5% men, mean age 59 years). A diagnosis of pulmonary embolism (PE) was made in 20...
2016: Acute Medicine
Vladimir Dedovic, Goran Stankovic
Despite permanent improvement in success rate and technical developments, chronic total occlusion (CTO) remains undertreated by percutaneous coronary intervention (PCI). Dedicated CTO operators from Japan, Europe and USA perform these procedures with success rate beyond 90%, but there is still huge gap between this group of specialists and broader population of PCI operators. Recently proposed CTO scores can be used for patients' selection according to the CTO operators' experience. Patients with low CTO score values may be suitable for less experienced operators at the beginning of the CTO PCI learning curve, while more complex CTOs (higher CTO score values) should be differed to CTO experts...
October 19, 2016: Panminerva Medica
Rosa Dolz-Marco, David Sarraf, Vincent Giovinazzo, K Bailey Freund
PURPOSE: To describe multimodal imaging findings of an evolving case of acute posterior multifocal placoid pigment epitheliopathy occurring in a young healthy male. METHODS: Case report of a patient with acute posterior multifocal placoid pigment epitheliopathy including comprehensive systemic and ocular examinations. Ultra-widefield autofluorescence, fluorescein angiography, indocyanine green angiography, and serial optical coherence tomography angiography were performed...
October 18, 2016: Retinal Cases & Brief Reports
Elif B Turkoglu, Sara E Lally, Carol L Shields
PURPOSE: To report a case of choroidal sarcoid granuloma simulating choroidal metastasis in a patient with prostate carcinoma. METHOD: Case report. RESULTS: A 66-year-old man was found to have an asymptomatic choroidal mass in his left eye. He had known history of pulmonary sarcoidosis without systemic involvement and prostate carcinoma without metastasis. On examination, visual acuity was 20/20 in each eye. Anterior segment was normal, without inflammatory sign in either eye...
October 18, 2016: Retinal Cases & Brief Reports
Catherine Mazzola, Lissa C Baird, David F Bauer, Alexandra Beier, Susan Durham, Paul Klimo, Alexander Y Lin, Catherine McClung-Smith, Laura Mitchell, Dimitrios Nikas, Mandeep S Tamber, Rachana Tyagi, Ann Marie Flannery
BACKGROUND: No evidence-based guidelines exist for the imaging of patients with positional plagiocephaly. OBJECTIVE: The objective of this systematic review and evidence-based guideline is to answer the question, Is imaging necessary for infants with positional plagiocephaly to make a diagnosis? METHODS: The National Library of Medicine Medline database and the Cochrane Library were queried with the use of MeSH headings and key words relevant to imaging as a means to diagnose plagiocephaly...
November 2016: Neurosurgery
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