keyword
MENU ▼
Read by QxMD icon Read
search

OsiriX

keyword
https://www.readbyqxmd.com/read/27897414/a-comparative-study-of-software-programmes-for-cross-sectional-skeletal-muscle-and-adipose-tissue-measurements-on-abdominal-computed-tomography-scans-of-rectal-cancer-patients
#1
Jeroen L A van Vugt, Stef Levolger, Arvind Gharbharan, Marcel Koek, Wiro J Niessen, Jacobus W A Burger, Sten P Willemsen, Ron W F de Bruin, Jan N M IJzermans
BACKGROUND: The association between body composition (e.g. sarcopenia or visceral obesity) and treatment outcomes, such as survival, using single-slice computed tomography (CT)-based measurements has recently been studied in various patient groups. These studies have been conducted with different software programmes, each with their specific characteristics, of which the inter-observer, intra-observer, and inter-software correlation are unknown. Therefore, a comparative study was performed...
November 22, 2016: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/27873519/use-of-three-dimensional-curved-multiplanar-reconstruction-images-for-sylvian-dissection-in-microsurgery-of-middle-cerebral-artery-aneurysms
#2
Taek Kyun Nam, Yong Sook Park, Jun Soo Byun, Seung Won Park, Jeong Taik Kwon
PURPOSE: The purpose of this study was to introduce a method of using three-dimensional (3D) curved-multiplanar reconstruction (MPR) images for sylvian dissection during microsurgical treatment of middle cerebral artery (MCA) aneurysms. MATERIALS AND METHODS: Forty-nine patients who had undergone surgery for MCA aneurysms were enrolled. We obtained the 3D curved-MPR images along the sphenoid ridge using OsiriX MD™ imaging software, compared sylvian dissection time according to several 3D MPR image factors, and investigated the correlations between these images and intraoperative findings...
January 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/27856047/stature-estimation-from-the-femur-and-tibia-in-black-south-african-sub-adults
#3
Desiré M Brits, Mubarak A Bidmos, Paul R Manger
Stature estimation can play a role in the positive identification of unknown individuals and as such it is routinely assessed during the examination of adult remains. Unfortunately, this is not a standard procedure when dealing with sub-adult remains due to the general lack of standard procedures for the estimation of sub-adult stature. The aim of this study was therefore to derive regression equations for the estimation of stature in black South African sub-adults. Fifty nine black South African sub-adult males and females, aged 10-17 years, voluntarily participated in the study by undergoing a full body Magnetic Resonance Imaging (MRI) scan...
October 21, 2016: Forensic Science International
https://www.readbyqxmd.com/read/27847843/proximity-of-vital-structures-to-the-clavicle-comparison-of-fractured-and-non-fractured-side
#4
Frans J Mulder, Jos J Mellema, David Ring
BACKGROUND: Previous anatomic and radiological studies have described the relationship of the clavicle to major neurovascular structures in healthy subjects. We were curious about this relationship in patients with a clavicle fracture and if it is different from non-fractured clavicles. METHODS: We retrospectively identified all patients with a clavicle fracture between July 2001 and October 2013 in two level 1 trauma centers. Patients aged 18 years or greater with an acute unilateral clavicle fracture and a chest CT scan in the supine position displaying both clavicles and the complete fracture were included...
October 2016: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/27837185/quantitative-estimation-of-a-ratio-of-intracranial-cerebrospinal-fluid-volume-to-brain-volume-based-on-segmentation-of-ct-images-in-patients-with-extra-axial-hematoma
#5
Ha Son Nguyen, Mohit Patel, Luyuan Li, Shekar Kurpad, Wade Mueller
BACKGROUND: Diminishing volume of intracranial cerebrospinal fluid (CSF) in patients with space-occupying masses have been attributed to unfavorable outcome associated with reduction of cerebral perfusion pressure and subsequent brain ischemia. OBJECTIVE: The objective of this article is to employ a ratio of CSF volume to brain volume for longitudinal assessment of space-volume relationships in patients with extra-axial hematoma and to determine variability of the ratio among patients with different types and stages of hematoma...
November 11, 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27822642/bone-age-estimation-based-on-multislice-computed-tomography-study-of-the-scapula
#6
Florence Nougarolis, Fatima-Zohra Mokrane, Nicolas Sans, Hervé Rousseau, Fabrice Dedouit, Norbert Telmon
Progress in medical imaging has opened new areas of research in forensic anthropology, especially in the context of the study of bone age assessment. The study of bone age has become a useful tool for age estimation at death or age of young adult migrants in an anthropological context. We retrospectively evaluated multislice computed tomography (MSCT) explorations focused on scapulae of 232 individuals (123 males; 109 females) aged between 8 and 30 years old. Computed tomography (CT) scans were viewed in axial and multiplanar reconstructed images using OsiriX 5...
November 7, 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27772794/mri-venous-architecture-of-the-thalamus
#7
Bhanu Gogia, Vinodh A Kumar, Lakshmi S Chavali, Leena Ketonen, Jill Hunter, Sujit S Prabhu, Donald Schomer, L Anne Hayman
PURPOSE: Our purpose is to describe the thalamic veins using a novel approach named venous gliography in cases with primary or secondary gliomas of the thalamus. Venous gliography is defined by authors as a method to visualize veins on MRI Brain T1-weighted post contrast scans containing gliomas which have induced regional venous congestion. METHODS: Routine clinical MR Imaging studies were reviewed to assess the presence of thalamic veins in 29 glioma cases. In addition, confocal reconstruction techniques (Anatom-e and Osirix) were used in cases that had thin sections (1...
November 15, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27766411/post-mortem-ct-hounsfield-unit-profiles-obtained-in-the-lungs-with-respect-to-the-cause-of-death-assessment
#8
Daniel Schober, Nicole Schwendener, Wolf-Dieter Zech, Christian Jackowski
Segmentation of the lungs using post-mortem computed tomography (PMCT) data was so far not feasible due to post-mortem changes such as internal livores. Recently, an Osirix plug-in has been developed allowing automatically segmenting lungs also in PMCT data. The aim of this study was to investigate if the Hounsfield unit (HU) profiles obtained in PMCT data of the segmented lung tissue present with specific behaviour in relation to the cause of death. In 105 PMCT data sets of forensic cases, the entire lung volumes were segmented using the Mia Lite plug-in on Osirix...
October 20, 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27755409/evaluation-of-eyeball-and-orbit-in-relation-to-gender-and-age
#9
Cenk Murat Özer, Ibrahim Ilker Öz, Ismail Şerifoğlu, Mustafa Çağatay Büyükuysal, Çağatay Barut
The orbital aperture is the entrance to the orbit in which most important visual structures such as the eyeball and the optic nerve are found. It is vital not only for the visual system but also for the evaluation and recognition of the face. Eyeball volume is essential for diagnosing microphthalmos or buphthalmos in several eye disorders. Knowing the length of the optic nerve is necessary in selecting the right instruments for enucleation. Therefore, the aim of this study was to evaluate eyeball volume, orbital aperture, and optic nerve dimensions for a morphological description in a Turkish population sample according to gender and body side...
October 14, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27751830/promoting-ossification-of-calvarial-defects-in-craniosynostosis-surgery-by-demineralized-bone-plate-and-bone-dust-in-different-age-groups
#10
M Savolainen, A Ritvanen, J Hukki, P Vuola, J Telkkä, J Leikola
Correction of calvarial defects after calvarial vault reconstruction (CVR) is challenging in craniosynostosis patients of advanced age and typically employs autologous bone. Demineralized bone matrix (DBM) is a potential alternative material for autologous bone, but its use has not been extended to correct calvarial defects. CVR patients operated at the Department of Plastic Surgery, Helsinki University Hospital, during 2008-2010 were retrospectively reviewed. Inclusion criteria of the study were CVR patients who received DBM plate, with or without bone dust, on calvarial defects and who had suitable uncovered defect on the contralateral side as control...
September 20, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27720192/is-anterior-glenoid-bone-block-position-reliably-assessed-by-standard-radiography-a-cadaver-study
#11
P Clavert, G Koch, L Neyton, P Metais, J Barth, G Walch, L Lafosse
BACKGROUND: Standard radiography with an antero-posterior view and Bernageau's glenoid profile view is the method most widely reported in the literature to assess coracoid bone block position and fusion. OBJECTIVE: The aim of this cadaver study was to determine whether the antero-posterior and Bernageau's radiographs provide a reliable and reproducible evaluation of the position of a coracoid bone block and its fixation screws. METHOD: An isolated scapula showing no evidence of osteoarthritis or other abnormalities was used...
October 4, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27704640/vertical-augmentation-of-the-posterior-atrophic-mandible-by-interpositional-grafts-in-a-split-mouth-design-a-human-tomography-evaluation-pilot-study
#12
Eduardo Pinheiro Domingues, Rafael Fernandes Ribeiro, Martinho Campolina Rebello Horta, Flávio Ricardo Manzi, Maurício Greco Côsso, Elton Gonçalves Zenóbio
OBJECTIVE: Using computed tomography, to compare vertical and volumetric bone augmentation after interposition grafting with bovine bone mineral matrix (GEISTLICH BIO-OSS(®) ) or hydroxyapatite/tricalcium phosphate (STRAUMANN(®) BONECERAMIC) for atrophic posterior mandible reconstruction through segmental osteotomy. MATERIAL AND METHODS: Seven patients received interposition grafts in the posterior mandible for implant rehabilitation. The computed tomography cone beam images were analysed with OsiriX Imaging Software 6...
October 4, 2016: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/27701421/cardio-thoracic-ratio-is-stable-reproducible-and-has-potential-as-a-screening-tool-for-hiv-1-related-cardiac-disorders-in-resource-poor-settings
#13
Hanif Esmail, Tolu Oni, Friedrich Thienemann, Nashreen Omar-Davies, Robert J Wilkinson, Mpiko Ntsekhe
BACKGROUND: Cardiovascular disorders are common in HIV-1 infected persons in Africa and presentation is often insidious. Development of screening algorithms for cardiovascular disorders appropriate to a resource-constrained setting could facilitate timely referral. Cardiothoracic ratio (CTR) on chest radiograph (CXR) has been suggested as a potential screening tool but little is known about its reproducibility and stability. Our primary aim was to evaluate the stability and the inter-observer variability of CTR in HIV-1 infected outpatients...
2016: PloS One
https://www.readbyqxmd.com/read/27614793/novel-and-powerful-3d-adaptive-crisp-active-contour-method-applied-in-the-segmentation-of-ct-lung-images
#14
Pedro Pedrosa Rebouças Filho, Paulo César Cortez, Antônio C da Silva Barros, Victor Hugo C Albuquerque, João Manuel R S Tavares
The World Health Organization estimates that 300 million people have asthma, 210 million people have Chronic Obstructive Pulmonary Disease (COPD), and, according to WHO, COPD will become the third major cause of death worldwide in 2030. Computational Vision systems are commonly used in pulmonology to address the task of image segmentation, which is essential for accurate medical diagnoses. Segmentation defines the regions of the lungs in CT images of the thorax that must be further analyzed by the system or by a specialist physician...
September 5, 2016: Medical Image Analysis
https://www.readbyqxmd.com/read/27612284/practical-application-of-anatomy-of-the-oral-cavity-in-forensic-facial-reconstruction
#15
Paulo Eduardo Miamoto Dias, Geraldo Elias Miranda, Thiago Leite Beaini, Rodolfo Francisco Haltenhoff Melani
The oral cavity's importance in defining the facial region makes it a primary feature for forensic facial reconstruction (FFR). The aim of this study is to construct a pattern of reference for dimensions and proportions of the lips and establish parameters that may help estimate the vermilion borders' height dimensions and the mouth's width. By means of cone beam computed tomography, divided into two samples: sample 1 (n = 322; 137 male, 185 female) verified the linear distances delimited by anatomical landmarks in soft tissue...
2016: PloS One
https://www.readbyqxmd.com/read/27599482/canine-atlantoaxial-optimal-safe-implantation-corridors-description-and-validation-of-a-novel-3d-presurgical-planning-method-using-osirix%C3%A2
#16
Guillaume Leblond, Luis Gaitero, Noel M Moens, Alex Zur Linden, Fiona M K James, Gabrielle Monteith, John Runciman
BACKGROUND: Canine ventral atlantoaxial (AA) stabilization is most commonly performed in very small dogs and is technically challenging due to extremely narrow bone corridors. Multiple implantation sites have been suggested but detailed anatomical studies investigating these sites are lacking and therefore current surgical guidelines are based upon approximate anatomical landmarks. In order to study AA optimal safe implantation corridors (OSICs), we developed a method based on computed tomography (CT) and semi-automated three-dimensional (3D) mathematical modelling using OsiriX™ and Microsoft®Excel software...
2016: BMC Veterinary Research
https://www.readbyqxmd.com/read/27593805/the-role-of-osirix-based-virtual-endoscopy-in-planning-endoscopic-transsphenoidal-surgery-for-pituitary-adenoma
#17
Daniel Rotariu, Alexandru Budu, Ziyad Faiyad, Ion Poeata
AIM: Evaluate the role and accuracy of the virtual endoscopy realized using commercially available software, OsiriX, as a method of planning of surgical interventions. MATERIAL AND METHODS: The CTs of 22 patients with pituitary adenomas proposed for endoscopic approach were reconstructed using OsiriX. VE was performed prior surgery to assess the surgical corridor and particular anatomy. We have evaluated the following landmarks: inferior and middle turbinate, sphenoid ostia (SO), choanal arch (Ch), sphenoethmoidal recess (SER), sphenoid septa, sella turcica, carotid prominences and opticocarotid recesses (OCR)...
January 25, 2016: Turkish Neurosurgery
https://www.readbyqxmd.com/read/27593594/fast-and-accurate-liver-volumetry-prior-to-hepatectomy
#18
Toine M Lodewick, Carsten W K P Arnoldussen, Max J Lahaye, Kim M C van Mierlo, Ulf P Neumann, Regina G Beets-Tan, Cornelis H C Dejong, Ronald M van Dam
BACKGROUND: Volumetric assessment of the liver is essential in the prevention of postresectional liver failure after partial hepatectomy. Currently used methods are accurate but time-consuming. This study aimed to test a new automated method for preoperative volumetric liver assessment. METHODS: Patients who underwent a contrast enhanced portovenous phase CT-scan prior to hepatectomy in 2012 were included. Total liver volume (TLV) and future remnant liver volume (FRLV) were measured using TeraRecon Aquarius iNtuition(®) (autosegmentation) and OsiriX(®) (manual segmentation) software by two observers for each software package...
September 2016: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/27586057/influence-of-invisalign-treatment-with-interproximal-enamel-reduction-ier-on-bone-volume-for-adult-crowding-a-retrospective-three-dimensional-cone-beam-computed-tomography-study
#19
Andreas Hellak, Nicola Schmidt, Michael Schauseil, Steffen Stein, Thomas Drechsler, Heike Maria Korbmacher-Steiner
BACKGROUND: The aim of this study was to use three-dimensional datasets to identify associations between treatment for adult crowding using Invisalign and interproximal enamel reduction (IER) and changes in the bone volume. METHODS: A total of 60 digital cone beam computed tomography (CBCT) scans from 30 patients (28 women, two men; 30 CBCTs pretreatment, 30 posttreatment) were examined retrospectively in order to record bone volume three-dimensionally before and after treatment...
2016: BMC Oral Health
https://www.readbyqxmd.com/read/27581227/von-willebrand-factor-and-prekallikrein-in-plasma-are-associated-with-thrombus-volume-in-abdominal-aortic-aneurysms
#20
Qasam M Ghulam, Kim K Bredahl, Jørgen B Gram, Lars Lönn, Jens P Goetze, Henrik H Sillesen, Jonas P Eiberg
OBJECTIVES: Disruption of the endothelial lining may be one of the events linking intraluminal thrombus and abdominal aortic aneurysm growth. In the present study, we examined whether von Willebrand factor activity in plasma, contact proteins of blood coagulation, and inflammatory biomarkers may be associated with intraluminal thrombus volume in search of a biochemical marker of endothelial damage and thrombus size. DESIGN: Prospective study, correlating potential endothelial biomarkers and intraluminal thrombus volume acquired by computed tomography angiography...
August 2016: Vascular and Endovascular Surgery
keyword
keyword
36354
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"