On multislice computed tomography pulmonary angiography and ventilation/perfusion scanning for the diagnostic work-up of suspected pulmonary embolism
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Pulmonary angiography
Multislice computed tomography
Multislice
Pulmonary vasculature
Multislice computed tomography
Multislice
Coronary artery aneurysm
Left coronary artery
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Background: Electrical pulmonary vein isolation (PVI) has become an effective tool to control atrial fibrillation (AF).Point by point ablation guided by electroanatomical mapping system is a preferable method of achieving it.Most electrophysiology (EP) labs routinely employ some kind of preprocedural imaging to gain insight into PV anatomical variants that could alter the strategy of ablation procedure.On the other hand there is scarce data on correlation of knowledge of pulmonary vein (PV) anatomy on success, duration and safety of the procedure.Methods: From November 2009 till March 2013 we performed 75 AF ablations in General Hospital Zadar, EP lab.All patients underwent preprocedural left atrial and pulmonary veins MSCT angiography using Siemens Somatom 16. 3D reconstructions were made with standard software and operators were aware of the anatomy.Patients were divided into 2 groups depending on anatomical variants of PVs: Group A -standard anatomy in whom all 4 PVs connect to LA with separated ostia and Group B -any other anatomical variant.We then correlated the anatomy with outcomes in terms of success, duration and safety of the ablation procedure. Results:The most common anatomical variant we met in our cohort was a common left trunk in 17% of patients (13/75).Accessory PVs were registered in 14% (11/75).We had a rare case of accessory right PV connecting to LA roof in one patient.The mean procedure duration was 214 ±49 minutes in Group A vs 208 ±44 in Group B (P=0.71).There was no difference in success defined as clinical improvement in AF burden.No patient reported symptoms suggestive of PV stenosis.Conclusions: Variants in PV anatomy in our cohort, as assessed by MCST angiography were as common as described in previously published studies.The presence of common left PV trunk shows a trend toward shortening the overall procedure time but has a same success rate in short term follow up.None of the anatomical variants influenced the safety outcomes.
Multislice computed tomography
Multislice
Computed Tomography Angiography
Single Center
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This paper presents our first experience with multislice computed tomography emphasizing our technical protocols. Between November 1999 and October 2000, 8086 multislice computed tomographic examinations were performed. The choice in collimation, pitch, slice width and increment, multiplanar reconstructions and contrast enhancement were adapted to provide high resolution in the Z axis, high speed acquisitions and low exposure to the patient. Filming and archiving parameters are also detailed. Multislice CT provides excellent 3D imaging with high speed acquisitions and lower doses than previously reported with single slice CT.
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Multislice computed tomography
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Multislice
Multislice computed tomography
Bypass surgery
Computed Tomography Angiography
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CT technology development has always been driven by clinical needs, and the development of multislice CT is no exception. This chapter starts with an explanation of the clinical drivers and then presents different configurations of multislice detector designs. Different ways of performing image reconstructions (2D, 3D, axial, and helical) are then discussed, followed by detailed descriptions of different image artifacts linked to multislice CT.
Multislice
Multislice computed tomography
Helical computed tomography
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Extracted from text ... ROLE OF MULTISLICE COMPUTED
TOMOGRAPHY IN CARDIAC
IMAGING
Non-invasive coronary angiography along with multidetector computed tomography or
magnetic resonance imaging is attracting increasing interest in affluent areas.
ELSJE DIRKS
MB ChB, MMed Rad (D), FCRad (D) (SA)
Radiologist in private practice
Kempton Park
Elsje Dirks received the MB ChB degree in
1996. She worked as a registrar at the
Department of Radiology at the Pretoria
Academic Hospital from 2001 to 2005.
After completing the requirements for FC
Diagnosis Radiology she was admitted as a
Fellow of the Colleges of Medicine of South
Africa in 2004. In 2005 she received ..
Multislice computed tomography
Multislice
Multidetector computed tomography
Computed Tomography Angiography
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Multislice computed tomography
Multislice
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30Jun 2016 Prognosis Of Pulmonary Embolism In The Era Of Multislice CT Pulmonary Angiography. Ghada A Abdel monem , Mai E.M. Khamis , Enass M Khattab , Shimaa Farouk Abdelhai and Ayman R Abdelhai.
Multislice computed tomography
Pulmonary angiography
Multislice
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The developments of equipments and techniques of multislice CT including detectors,tube and data processing system were comprehensively reviewed.The status and prospect of clinical application of multislice CT including CT angiography,CT perfusion and CT virtual endoscopy were also analyzed and expected.Several problems resulted from multislice CT were put forward which must be dealt with urgently.
Multislice computed tomography
Multislice
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