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Archives of Neurology Aug 1986
Topics: Angiography; Humans; Subtraction Technique
PubMed: 3524516
DOI: No ID Found -
Australasian Radiology Mar 2002Procedures in radiology are still very much learnt as an apprenticeship. While there is no substitute for hands-on practice and the one-to-one teaching of an experienced...
Procedures in radiology are still very much learnt as an apprenticeship. While there is no substitute for hands-on practice and the one-to-one teaching of an experienced consultant, it has been our experience that learning is significantly facilitated by the availability of simple, easy-to-follow, relevant notes for pre-reading, especially in the difficult and potentially hazardous area of angiography. However, we have had surprising difficulty in finding an introductory text that is suitable for the teaching of angiography to new, never-seen-it-before trainees. We have therefore developed a short, simple, illustrated manual within our department for introducing angiography to first-year registrars, which we present in this article. We hope trainees will find it of use for providing an overview of the principles and the basic techniques involved prior to beginning formal training in this challenging and rewarding specialty.
Topics: Angiography; Contraindications; Humans
PubMed: 11966604
DOI: 10.1046/j.1440-1673.2001.01008.x -
Revue Medicale de Bruxelles Apr 1986
Topics: Angiography; Aortography; Cerebral Angiography; Coronary Angiography; Humans; Renal Artery
PubMed: 3726344
DOI: No ID Found -
AJNR. American Journal of Neuroradiology 1982
Topics: Angiography; Humans; Radiographic Image Enhancement; Subtraction Technique; Videotape Recording
PubMed: 6810680
DOI: No ID Found -
The American Journal of Nursing Nov 1982
Topics: Angiography; Computers; Humans; Risk; Subtraction Technique
PubMed: 6753585
DOI: No ID Found -
Radiology Aug 1989
Topics: Angiography; Humans; Prospective Studies
PubMed: 2748843
DOI: 10.1148/radiology.172.2.2748843 -
Hong Kong Medical Journal = Xianggang... Apr 2006To assess the clinical applicability, efficacy, and safety of coronary angiography and angioplasty via a transradial approach in local Chinese patients. (Comparative Study)
Comparative Study
OBJECTIVE
To assess the clinical applicability, efficacy, and safety of coronary angiography and angioplasty via a transradial approach in local Chinese patients.
DESIGN
Prospective case series.
SETTING
Regional hospital, Hong Kong.
PATIENTS
All patients undergoing coronary angiography and coronary angioplasty between 1 January and 30 June 2004.
INTERVENTIONS
Transradial coronary angiography and coronary angioplasty.
MAIN OUTCOME MEASURES
Feasibility, success rate, and complications.
RESULTS
A total of 268 coronary angiographies (62% of all coronary angiographies) and 118 coronary angioplasties (48% of all coronary angioplasties) were performed via a transradial approach. The procedural success rate for coronary angiography was 93.7% with a mean duration of 21.8 (standard deviation, 13.5) minutes compared with 17.9 (10.0) minutes for angiography via a femoral approach. Most (99%) patients were free from any complications. Of those patients who underwent elective transradial coronary angiography in the morning, 64% were discharged on the same day. Comparison of data in the first half of the study period with those in the second half revealed a significant increase in the percentage of coronary angiographies performed via a transradial approach (from 52% to 73%, P<0.0001), and an improved procedural success rate (from 91.5% to 95.3%, P=0.1). For transradial coronary angioplasty, the procedural success rate was 98%. A total of 246 lesions (2.08 lesions per patient) were treated with no procedure-related complications.
CONCLUSIONS
Transradial coronary angiography and angioplasty are feasible in a significant proportion of local Chinese patients and achieve a high success rate and low complication rate. It tends to prolong procedural duration, but improves patients' comfort and permits earlier ambulation and discharge. The procedural success rate improves with accumulating experience.
Topics: Aged; Angioplasty, Balloon, Coronary; Coronary Angiography; Feasibility Studies; Female; Humans; Male; Middle Aged; Prospective Studies; Radial Artery; Safety; Treatment Outcome
PubMed: 16603777
DOI: No ID Found -
Neuroradiology Dec 2004Continuous evolution of multi row CT is increasingly making CT angiography a viable imaging modality for assessment of the supraaortic and intracranial vessels as an...
Continuous evolution of multi row CT is increasingly making CT angiography a viable imaging modality for assessment of the supraaortic and intracranial vessels as an anatomically and functionally coherent vascular system. Extended non-invasive examinations with reduced contrast volume have become feasible with the availability of 16 and 64 row MDCT scanners. Prerequisites to obtain high resolution CT angiographies of the head and neck vessels with superior detail include the administration of low contrast volume, high contrast density (400 mg I/ml) contrast media, adequate timing and data acquisition, optimal flow rate (4 ml/s) and saline flushing. Non-invasiveness, delineation of vessel calcification, virtual independence from hemodynamic conditions, and the ability to provide quantification without needing to correct for magnification are all attributes that favour CT angiography over digital subtraction angiography and to some extent even magnetic resonance angiography as an alternative non-invasive technique. CT angiography is established as a modality of choice for the assessment of patients with acute stroke and chronic steno-occlusive disease. CT angiography may indicate the presence of extra- or intracranial acute vessel occlusion and dissection, predisposing atherosclerotic steno-occlusive disease and thus indicate thrombo-embolism or local appositional thrombosis as the principle pathogenic factor. CT angiography is used to assess anatomy, and to depict the presence, location and extent of calcified and non-calcified plaque as a cause of high grade stenosis. Despite relatively limited sensitivity CT angiography is indicated for suspected or confirmed aneurysms that demand further verification of their presence, geometry, or relationship to parent artery branches and osseous anatomic landmarks. Low volume high density contrast media have substantially increased the ability of CT angiography to depict small aneurysms, small branches, and collateral vessels, and to recognize the residual lumen in vessels with high grade stenosis or conditions such as dissection or pseudo-occlusion. Superior detail high resolution CT angiography is thus a viable alternative to DSA, relegating the latter technique to endovascular treatment applications only.
Topics: Angiography; Head; Humans; Neck; Tomography, X-Ray Computed; Vascular Diseases
PubMed: 15645154
DOI: 10.1007/s00234-004-1334-8 -
Journal of Biomedical Optics Aug 2016We developed high-temporal-resolution, full-field optical angiography for use in vascular occlusion tests (VOTs). In the proposed method, undersampled signals are...
We developed high-temporal-resolution, full-field optical angiography for use in vascular occlusion tests (VOTs). In the proposed method, undersampled signals are acquired by a high-speed digital camera that separates the dynamic and static speckle signals. The two types of speckle signal are used to calculate the short-time modulation depth (STMD) of each of the camera pixels. STMD is then used to realize high-temporal-resolution, full-field optical angiography. Phantom and biological experiments conducted and demonstrated the feasibility of using our proposed method to perform VOTs and to study the reaction kinetics in microfluidic systems.
Topics: Angiography; Humans; Microfluidics; Phantoms, Imaging; Vascular Diseases
PubMed: 27490222
DOI: 10.1117/1.JBO.21.8.086002 -
The Journal of Sports Medicine and... Feb 2023This article describes the clinical case of a master athlete, practising triathlon, who came to our Sports Medicine Center to be eligible for competitive sport. The...
This article describes the clinical case of a master athlete, practising triathlon, who came to our Sports Medicine Center to be eligible for competitive sport. The subject, who had a family history of ischemic heart disease, presented a significant lowering of the ST segment in the inferolateral leads on the maximal cycle ergometer exercise test. Inducible myocardial ischemia emerged from the second level investigations. However, it was not confirmed by two coronary angiographies, the second performed after 9 years. The subject remained asymptomatic for the entire duration of the follow-up and in excellent clinical conditions, having never shown adverse events of cardiovascular nature.
Topics: Humans; Exercise Test; Coronary Angiography; Electrocardiography; Heart; Myocardial Ischemia
PubMed: 35816148
DOI: 10.23736/S0022-4707.22.14184-8