keyword
MENU ▼
Read by QxMD icon Read
search

CTA

keyword
https://www.readbyqxmd.com/read/27904932/-the-reverse-shoulder-arthroplasty-delta-xtend-mid-term-results
#1
S Gruber, C Schoch, M Geyer
BACKGROUND: Reverse shoulder arthroplasty (RSA) has become a frequently used and established treatment for patients with cuff tear arthropathy, increasingly also for patients with fracture sequelae (FS), failed rotator cuff reconstruction and omarthrosis with cuff insufficiency. Since 2007 new generation prostheses, for example Delta Xtend (Depuy, Warsaw, USA), have been used, but few mid-term results have been published. OBJECTIVES: The aim of this study is to report on the outcome after RSA after a mean follow-up of 68 months (range 63-75), to verify the already published, encouraging early results and to learn about the function and pain situation after RSA in the mid-term period...
November 30, 2016: Der Orthopäde
https://www.readbyqxmd.com/read/27903485/endovascular-repair-of-thoraco-abdominal-aortic-aneurysm-in-high-surgical-risk-patients-fenestrated-and-branched-endografts
#2
E Gallitto, M Gargiulo, A Freyrie, C Bianchini Massoni, R Pini, C Mascoli, G L Faggioli, S Ancetti, A Stella
AIM: To report early and mid-term results of endovascular repair of thoraco-abdominal aneurysms (TAAA) by using of Cook-Zenith fenestrated/branched endografts (FB-EVAR) in high-surgical risk patients unfit for open repair (OR). METHODS: Between January 2012 and April 2015, all the patients with TAAA, considered at high-surgical risk for OR and treated by Cook-Zenith FB-EVAR, were prospectively enrolled. Patients were studied using a thoraco-abdominal computer tomography angiography (CTA) and dedicated software for advanced vessels analysis...
November 26, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27903473/treatment-of-type-ii-endoleak-and-aneurysm-expansion-after-evar
#3
Konstantinos G Moulakakis, Christos Klonaris, John Kakisis, Constantine N Antonopoulos, Andreas Lazaris, George S Sfyroeras, George Mantas, Spyridon N Vasdekis, Elias N Brountzos, George Geroulakos
AIM: The management of type II endoleak causing sac enlargement continues to be a topic of debate. The purpose of this study was to examine and compare the outcomes between open surgical technique with sacotomy and suturing of the feeding vessels to interventional embolization in patients with aneurysm sac expansion after EVAR. MATERIAL-METHODS: Inclusion criteria for intervention in patients with prior EVAR and type II endoleak were: asymptomatic expanding aneurysm sac > 5mm between two consecutive follow-up CTA scans, symptomatic aneurysm sac expansion...
November 26, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27903345/-application-of-low-dose-ct-angiography-with-70-kv-in-patients-with-peripheral-arterial-diseases
#4
Y H Duan, G M Lu, J Wu, X C Yang, D D Wu, Z P Cheng, X M Wang
Objective: To assess the image quality, radiation dose and diagnostic efficiency of peripheral arterial CT angiography (CTA) performed at tube voltage of 70 and 120 kV. Methods: Between January 2014 and December 2015, a total of 200 consecutive patients with known or suspected lower extremity arteriosclerosis obliterans (LEASO) underwent CTA.Patients were randomly divided into 2 groups by different scanning protocols.Group A (n=100): 70 kV and 0.8 ml/kg contrast agent, group B (n=100): 120 kV and 100 ml contrast agent...
November 22, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27897042/state-of-the-art-pulmonary-ct-angiography-for-acute-pulmonary-embolism
#5
Moritz H Albrecht, Matthew W Bickford, John W Nance, Longjiang Zhang, Carlo N De Cecco, Julian L Wichmann, Thomas J Vogl, U Joseph Schoepf
OBJECTIVE: Pulmonary CT angiography (CTA) is the imaging modality of choice in suspected acute pulmonary embolism (PE). Current pulmonary CTA techniques involve ever lower doses of contrast medium and radiation along with advanced postprocessing applications to enhance image quality, diagnostic accuracy, and provide added value in patient management. The objective of this article is to summarize these current developments and discuss the appropriate use of state-of-the-art pulmonary CTA...
November 29, 2016: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/27896495/accuracy-of-coronary-computed-tomography-angiography-for-bioresorbable-scaffold-luminal-investigation-a-comparison-with-optical-coherence-tomography
#6
Carlos Collet, Yohei Sotomi, Rafael Cavalcante, Taku Asano, Yosuke Miyazaki, Erhan Tenekecioglu, Pieter Kistlaar, Yaping Zeng, Pannipa Suwanasson, Robbert J de Winter, Koen Nieman, Patrick W Serruys, Yoshinobu Onuma
To establish the accuracy of coronary computed tomography angiography (CTA) for in-scaffold quantitative evaluation with optical coherence tomography (OCT) as a reference. The translucent backbone of the bioresorbable scaffold allow us to evaluate non-invasively the coronary lumen with coronary CTA. In the ABSORB first-in-man studies, coronary CTA was shown to be feasible for quantitative luminal assessment. Nevertheless, a comparison with an intravascular modality with higher resolution has never been performed...
November 28, 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27896450/extremity-cta-for-penetrating-trauma-10-year-experience-using-a-64-detector-row-ct-scanner
#7
Charles G Colip, Varun Gorantla, Christina A LeBedis, Jorge A Soto, Stephan W Anderson
PURPOSE: The purpose of this study is to assess the performance of CT angiography (CTA) in the evaluation of penetrating vascular trauma to the extremities in a large cohort of patients at our level I trauma center. METHODS: A retrospective, IRB-approved review of consecutive CTAs for the evaluation of penetrating trauma to the extremities in 446 patients (M/F = 396:50, mean age = 27 years) from 1/1/2005 to 5/1/2015 was performed. Medical records were reviewed to correlate diagnostic imaging findings with clinical history and subsequent interventions...
November 29, 2016: Emergency Radiology
https://www.readbyqxmd.com/read/27895960/automatic-four-chamber-segmentation-using-level-set-method-and-split-energy-function
#8
Ho Chul Kang, Jeongjin Lee, Juneseuk Shin
OBJECTIVES: In this paper, we present an automatic method to segment four chambers by extracting a whole heart, separating the left and right sides of the heart, and spliting the atrium and ventricle regions from each heart in cardiac computed tomography angiography (CTA) efficiently. METHODS: We smooth the images by applying filters to remove noise. Next, the volume of interest is detected by using k-means clustering. In this step, the whole heart is coarsely extracted, and it is used for seed volumes in the next step...
October 2016: Healthcare Informatics Research
https://www.readbyqxmd.com/read/27894886/utility-of-urgent-computed-tomography-angiography-in-the-setting-of-intraparenchymal-brain-hemorrhage
#9
Omran Kaskar, Larry B Goldstein
BACKGROUND AND PURPOSE: Patients presenting with an intracerebral hemorrhage (ICH) generally have an initial noncontrast computed tomography (NCCT) of the brain. Computed tomography angiography (CTA) can help identify secondary causes of ICH and detect a "spot sign." We hypothesized that performing an urgent CTA in the setting of a presumed primary ICH has only limited utility and did not alter urgent management. METHODS: This was a retrospective study of consecutive patients presenting with a primary ICH identified from the Duke University Stroke Registry from 2010 to 2013 who had an ICH detected on an initial NCCT...
November 25, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27894786/mr-angiography-can-guide-ed-management-of-suspected-acute-aortic-dissection
#10
Gary X Wang, Sandeep S Hedgire, Thang Q Le, Jonathan D Sonis, Brian J Yun, Michael H Lev, Ali S Raja, Anand M Prabhakar
BACKGROUND: Aortic dissection is typically evaluated with computed tomography angiography (CTA). However, the feasibility of using magnetic resonance angiography (MRA) in the ED is unclear. This study examined the indications and outcomes of MRA in suspected aortic dissection evaluation in the ED. METHODS: An IRB approved review identified patients who underwent MRA in the ED for acute thoracic aortic dissection from January 2010 to June 2016. Demographics, clinical assessment, CTA contraindications, outcomes, and ED disposition were analyzed...
November 17, 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27894580/imaging-studies-for-preoperative-planning-of-perforator-flaps-an-overview
#11
REVIEW
Shimpei Ono, Hiromitsu Hayashi, Hiroyuki Ohi, Rei Ogawa
The vascular anatomy of perforators varies between individuals; thus, accurate preoperative assessment of perforators is essential for safely planning perforator flaps. Perforator computed tomographic angiography (P-CTA) with multidetector-row computed tomography (MDCT) is one of the best available methods to precisely reveal the 3-dimensional anatomic details of perforators. The aim of this report is to describe the authors' experience using P-CTA with MDCT for detecting the perforating vessel preoperatively and a step-by-step approach to harvest perforator flaps based on this technique...
January 2017: Clinics in Plastic Surgery
https://www.readbyqxmd.com/read/27893667/abdominal-compartment-syndrome-after-endovascular-repair-for-ruptured-abdominal-aortic-aneurysm-leads-to-acute-intestinal-necrosis-case-report
#12
Xiyang Chen, Jichun Zhao, Bin Huang, Ding Yuan, Yi Yang, Yukui Ma
INTRODUCTION: Abdominal compartment syndrome (ACS) after endovascular repair (EVAR) of rupture abdominal aortic aneurysm (rAAA) is a rare emergency situation, which has a high mortality. However, the progression of ACS is rapid and the diagnosis is usually been delayed, which increase the difficulties in treatment and affect the prognosis. We describe a case of a sever complication (acute intestinal necrosis) resulting from ACS after endovascular repair of rAAA. CLINICAL FINDING: An elderly man, 81 years old, complained a sudden lower abdominal and back pain without any predisposing cause...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27891511/diagnostic-value-of-ct-arthrography-for-evaluation-of-osteochondral-lesions-at-the-ankle
#13
Jan S Kirschke, Sepp Braun, Thomas Baum, Christian Holwein, Christoph Schaeffeler, Andreas B Imhoff, Ernst J Rummeny, Klaus Woertler, Pia M Jungmann
Background. To retrospectively determine the diagnostic value of computed tomography arthrography (CTA) of the ankle in the evaluation of (osteo)chondral lesions in comparison to conventional magnetic resonance imaging (MRI) and intraoperative findings. Methods. A total of N = 79 patients had CTAs and MRI of the ankle; in 17/79 cases surgical reports with statements on cartilage integrity were available. Cartilage lesions and bony defects at talus and tibia were scored according to defect depth and size by two radiologists...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27890849/hybrid-treatment-of-a-suprarenal-aortic-aneurysm-with-an-infrarenal-aorto-bifemoral-surgical-graft-and-a-fenestrated-stent-graft
#14
Sebastian Nagel, Athanasios Katsargyris, Kyriakos Oikonomou, Eric L G Verhoeven
PURPOSE: To report a hybrid technique for the treatment of a suprarenal aortic aneurysm (SAA) in a patient with iliac occlusive disease. Initially an infrarenal aorto-bifemoral surgical graft was implanted, followed by deployment of a fenestrated bifurcated stent-graft at the suprarenal part of the aorta. CASE REPORT: A 69-year old man presented with a 51-mm saccular SAA and iliac occlusive disease with intermittent claudication. Both common iliac arteries had been previously treated with kissing stents...
November 24, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27890839/rupture-of-a-true-profunda-femoris-artery-aneurysm-two-case-reports-and-review-of-the-english-language-literature
#15
Ossama M Reslan, Scott Sundick, Combiz Razayat, Bruce J Brener, Joseph D Raffetto
Profunda femoris artery aneurysms (PFAA) are very rare and easily overlooked because located deeply within thigh muscle. PFAAs have a high rate of rupture in comparison with other peripheral arterial aneurysms, resulting in emergency surgical procedures with significant morbidity. PFAAs is diagnosed with color arterial Doppler ultrasound, although computed tomography angiography (CTA) remains the best imaging method to precisely define the exact site and length of arterial involvement. PFAAs should be treated surgically once diagnosed, even if they are asymptomatic due to the high incidence of complications...
November 24, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27889203/changes-in-renal-anatomy-after-fenestrated-endovascular-aneurysm-repair
#16
B Maurel, Y Lounes, M Amako, D Fabre, A Hertault, J Sobocinski, R Spear, R Azzaoui, T M Mastracci, S Haulon
OBJECTIVE: To assess short- and long-term movement of renal arteries after fenestrated endovascular aortic repair (FEVAR). METHODS: Consecutive patients who underwent FEVAR at one institution with a custom-made device designed with fenestrations for the superior mesenteric (SMA) and renal arteries, a millimetric computed tomography angiography (CTA), and a minimum of 2 years' follow-up were included. Angulation between renal artery trunk and aorta, clock position of the origin of the renal arteries, distance between renal arteries and SMA, and target vessel occlusion were retrospectively collected and compared between the pre-operative, post-operative (<6 months), and last (>12 months) CTA...
November 24, 2016: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27886985/efficacy-of-lens-protection-systems-dependency-on-different-cranial-ct-scans-in-the-acute-stroke-setting
#17
Nika Guberina, Michael Forsting, Adrian Ringelstein
To evaluate the dose-reduction potential with different lens protectors for patients undergoing cranial computed tomography (CT) scans. Eye lens dose was assessed in vitro (α-Al2O3:C thermoluminescence dosemeters) using an Alderson-Rando phantom(®) in cranial CT protocols at different CT scanners (SOMATOM-Definition-AS+(®)(CT1) and SOMATOM-Definition-Flash(®) (CT2)) using two different lens-protection systems (Somatex(®) (SOM) and Medical Imaging Systems(®) (MIS)). Summarised percentage of the transmitted photons: (1) CT1 (a) unenhanced CT (nCT) with gantry angulation: SOM = 103%, MIS = 111%; (2) CT2 (a) nCT without gantry angulation: SOM = 81%, MIS = 91%; (b) CT angiography (CTA) with automatic dose-modulation technique: SOM = 39%, MIS = 74%; (c) CTA without dose-modulation technique: SOM = 22%, MIS = 48%; (d) CT perfusion: SOM = 44%, MIS = 69%...
November 24, 2016: Radiation Protection Dosimetry
https://www.readbyqxmd.com/read/27885414/clinical-implementation-of-an-emergency-department-coronary-computed-tomographic-angiography-protocol-for-triage-of-patients-with-suspected-acute-coronary-syndrome
#18
Brian B Ghoshhajra, Richard A P Takx, Pedro V Staziaki, Harshna Vadvala, Phillip Kim, Tomas G Neilan, Nandini M Meyersohn, Daniel Bittner, Sumbal A Janjua, Thomas Mayrhofer, Jeffrey L Greenwald, Quyhn A Truong, Suhny Abbara, David F M Brown, James L Januzzi, Sanjeev Francis, John T Nagurney, Udo Hoffmann
OBJECTIVES: To evaluate the efficiency and safety of emergency department (ED) coronary computed tomography angiography (CTA) during a 3-year clinical experience. METHODS: Single-center registry of coronary CTA in consecutive ED patients with suspicion of acute coronary syndrome (ACS). The primary outcome was efficiency of coronary CTA defined as the length of hospitalization. Secondary endpoints of safety were defined as the rate of downstream testing, normalcy rates of invasive coronary angiography (ICA), absence of missed ACS, and major adverse cardiac events (MACE) during follow-up, and index radiation exposure...
November 24, 2016: European Radiology
https://www.readbyqxmd.com/read/27885390/ct-angiography-in-the-setting-of-suspected-acute-mesenteric-ischemia-prevalence-of-ischemic-and-alternative-diagnoses
#19
Frank Oliver Henes, Perry J Pickhardt, Andrzej Herzyk, Scott J Lee, Utaroh Motosugi, Thorsten Derlin, Meghan G Lubner, Gerhard Adam, Gerhard Schön, Peter Bannas
PURPOSE: The purpose of the study was to determine the prevalence of ischemic and alternative diagnoses and the diagnostic accuracy of CT angiography (CTA) in the setting of suspected acute mesenteric ischemia (AMI). MATERIAL AND METHODS: We included 959 patients undergoing CTA for the evaluation of suspected AMI. The final clinical diagnosis was used to determine the prevalence of ischemic and alternative diagnoses and to calculate the diagnostic accuracy of CTA...
November 24, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27885318/multiscale-opening-of-conjoined-fuzzy-objects-theory-and-applications
#20
Punam K Saha, Subhadip Basu, Eric A Hoffman
Theoretical properties of a multi-scale opening (MSO) algorithm for two conjoined fuzzy objects are established, and its extension to separating two conjoined fuzzy objects with different intensity properties is introduced. Also, its applications to artery/vein (A/V) separation in pulmonary CT imaging and carotid vessel segmentation in CT angiograms (CTAs) of patients with intracranial aneurysms are presented. The new algorithm accounts for distinct intensity properties of individual conjoined objects by combining fuzzy distance transform (FDT), a morphologic feature, with fuzzy connectivity, a topologic feature...
October 2016: IEEE Transactions on Fuzzy Systems: a Publication of the IEEE Neural Networks Council
keyword
keyword
9663
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"