Spatial orientation of segments of the coronary arteries evaluated from 100 coronary angiograms

2003 ◽  
Author(s):  
U. Solzbach ◽  
H. Wollschlager ◽  
A. Zeiher ◽  
B. Willer ◽  
A. Philipp ◽  
...  
Keyword(s):  
Coronary Arteries ◽  
Spatial Orientation ◽  
Coronary Angiograms

An angiographic study of coronary arterial disease in children after heart transplantation

1994 ◽  
Vol 4 (1) ◽  
pp. 15-18 ◽  
Author(s):  
Ana Ladeia ◽  
Jérôme Le Bidois ◽  
Jean François Piéchaud ◽  
Jean Philippe Metzger ◽  
Pascal Vouhé ◽  
...  
Keyword(s):  
Heart Transplantation ◽  
Coronary Arteries ◽  
Therapeutic Option ◽  
Arterial Disease ◽  
Separate Analysis ◽  
Myocardial Bridging ◽  
Luminal Diameter ◽  
Coronary Arterial Disease ◽  
Coronary Angiograms

SummaryCoronary angiograms were analyzed in 29 children after heart transplantation. Age at transplantation was one month to 14 years (mean 4.5 years) with follow-up from five months to six years (mean 2.9 years). Immunosuppression was based on cyclosporine and azathioprine; six patients also received maintenance steroids. Coronary angiograms were obtained after giving an intracoronary arterial bolus of nitroglycerin to avoid spasm. Coronary angiograms showed stenoses, luminal irregularities, loss of luminal diameter and obliteration of branches, and one example of myocardial bridging. The review of angiographic recordings in some patients showed a loss of normal motion of coronary arteries which, instead, appeared rigid. No abnormalities were seen in eight patients (28%). Coronary arterial changes were present between six months and four years after transplantation in 15 patients (52%). Isolated loss of normal motion of the coronary arteries was present in six patients (20%). The separate analysis of 15 patients who underwent more than one coronary angiogram showed a progression of lesions in eight cases. Coronary arterial disease is a frequent complication of heart transplantation in children and there is a progression of lesions in a large proportion of patients. Since there is no satisfactory therapy for this complication, heart transplantation should be reserved for children having no other reasonable therapeutic option.

scholarly journals Angiographic profile of coronary arteries in Keralite population

2014 ◽  
Vol 03 (03) ◽  
pp. 143-149
Author(s):  
Apsara M P.
Keyword(s):  
Coronary Artery ◽  
Coronary Arteries ◽  
Right Coronary Artery ◽  
Research Work ◽  
Myocardial Revascularization ◽  
Chi Square ◽  
Circumflex Artery ◽  
Chi Square Test ◽  
The Right ◽  
Coronary Angiograms

Abstract Background and aims: The incidence of Coronary Artery Disease (CAD) has reached alanning proportions in India. The pathological hall mark of CAD is myocardial ischemia resulting from the atherosclerotic narrowing of coronary arteries. In this era of advanced interventions and cardiac surgery, a thorough knowledge of normal and variant anatomy of coronary arteries is of prime significance and of great use both to the clinicians and anatomists. Materials and methods: One hundred coronary angiograms of patients free of disease were studied in detail in different profiles. The data obtained was quantified according to their frequencies. The relation between the length of left main coronary artery and coronary artery dominance was statistically analyzed using the 'Chi Square test for Trend'. Results: This study highlighted some interesting findings such as the origin of Sino- atrial nodal artery from the second segment of right coronary artery in 3% of cases, double right marginal artery in 4% cases. Other variations such as Mouchet's posterior recurrent interventricular artery, origin of circumflex artery from the right coronary artery and abnormal communication between the terminal parts of right coronary artery and circumflex artery were each noticed in 1 % of cases. Conclusions: Coronary arteries and their branches are prone to variations in their course and morphology. Prior knowledge about this is important for the interpretation of coronary angiograms and surgical myocardial revascularization. The present work on normal and variant pattern of coronary arteries will help in gathering momentum to the already advancing research work in this field.

Small Coronary Vessel Disease and Sudden Coronary Death

1989 ◽  
Vol 29 (1) ◽  
pp. 74-77 ◽  
Author(s):  
Elizabeth J. Vanhorn ◽  
Patrick J. Gallagher
Keyword(s):  
Coronary Arteries ◽  
Coronary Vessels ◽  
Hypertensive Heart Disease ◽  
Post Mortem ◽  
Coronary Death ◽  
Left Anterior Descending Artery ◽  
Sudden Coronary Death ◽  
Major Coronary Artery ◽  
Branch Vessel ◽  
Coronary Angiograms

In an attempt to determine the importance of atherosclerosis in medium-sized coronary arteries, the hearts of 20 patients dying of cardiac disease, within 24 hours of the onset of symptoms, were compared with 19 controls. Post-mortem coronary angiograms were performed and the coronary arteries dissected in detail. Severe stenoses, or complete occlusions, were present in 34 of 80 major coronary arteries in the sudden cardiac death (SCD) group and 5 of 76 in the controls. Medium-sized branch vessels were severely stenosed or occluded in 20.5 per cent (37 of 180 vessels) in the SCD group and 6.4 per cent (11 of 171 vessels) in the controls. Forty of the 48 diseased branch vessels arose from the left anterior descending artery. In the SCD group. IS patients died from major coronary artery atheroma, one from hypertensive heart disease and only one from disease of a branch vessel. We conclude that, in most cases of SCD. careful macroscopic examination of the major coronary vessels will provide an adequate explanation for death. Detailed dissection of all medium-sized branch vessels is unlikely to be of value as a routine procedure but, at the very least, pathologists should identify and dissect the first septal and diagonal branches of the left anterior descending artery in every post-mortem.

Spatial orientation of coronary arteries and its implication for breast and thoracic radiotherapy—proposing “coronary strip” as a new organ at risk

2018 ◽  
Vol 194 (8) ◽  
pp. 711-718 ◽  
Author(s):  
Anusheel Munshi ◽  
Nilaxi Khataniar ◽  
Biplab Sarkar ◽  
Moti Lal Bera ◽  
Bidhu Kalyan Mohanti
Keyword(s):  
At Risk ◽  
Coronary Arteries ◽  
Spatial Orientation ◽  
Thoracic Radiotherapy ◽  
Organ At Risk

scholarly journals Prognostic Value of Abnormal Vasoreactivity of Epicardial Coronary Arteries to Sympathetic Stimulation in Patients With Normal Coronary Angiograms

2003 ◽  
Vol 23 (3) ◽  
pp. 495-501 ◽  
Author(s):  
Thomas H. Schindler ◽  
Burkhard Hornig ◽  
Peter T. Buser ◽  
Manfred Olschewski ◽  
Nobuhisa Magosaki ◽  
...  
Keyword(s):  
Coronary Arteries ◽  
Prognostic Value ◽  
Sympathetic Stimulation ◽  
Coronary Angiograms

scholarly journals Iindividually typological and concomitant variability of morphological characteristics of the coronary arteries

2015 ◽  
Vol 22 (4) ◽  
pp. 80-83
Author(s):  
T. S. Zharikova ◽  
V. Y. Milyukov ◽  
V. N. Nikolenko
Keyword(s):  
Coronary Arteries ◽  
Morphological Characteristics ◽  
Developed Countries ◽  
Microsoft Excel ◽  
Main Trunk ◽  
First Order ◽  
Vascular Bed ◽  
Definition Of ◽  
Second Period ◽  
Coronary Angiograms

Cardiovascular diseases are the leading cause of death and disability in the population in most developed countries. The organization of the vascular bed is an objective indicator of the state of the trophic tissue of any organ. The aim is to identify the individually-typological and concomitant variability of morphological characteristics of the coronary arteries in adults of the second period of mature and elderly. Materials and Methods: 161 coronary angiograms were investigated without evidence of pathological changes in coronary arteries of people of both sexes aged 36 to 74 years using the programs «Syngo Fast View», «ImageJ», «Adobe Photoshop CS7», «Microsoft Excel», «SPSS». Results: We identified the indivi-dually-typological and concomitant characteristics of the coronary arteries in people of different ages and sex in norm. Conclusions: Right and left coronary arteries have 3 types for the length of the main trunk (short, medium, long) and types of interposition of the branches of first order: 1 - compact (less than 47.420, less than 45.430), uniform (47.42 - 83.78; 45.43 -82.77), 3 - sparse (more than 83.78, 82.77 or more, respectively) depending on the angle between them (in diastole). Received data about anatomy of coronary arteries allows a more objective approach to the definition of tactics of treatment of cardiac patients.

The Segmentation Method Based on Fusion Algorithm of Transition Region Extraction for Coronary Angiograms

2012 ◽  
Vol 542-543 ◽  
pp. 616-619 ◽  
Author(s):  
Wen Wei Kang ◽  
Xiao Tao Kang ◽  
Bin Liu
Keyword(s):  
Transition Region ◽  
Coronary Arteries ◽  
Segmentation Method ◽  
Fusion Algorithm ◽  
Small Vessels ◽  
Background Elimination ◽  
Local Complexity ◽  
Region Extraction ◽  
Segmentation Image ◽  
Coronary Angiograms

Aiming at the complex background of coronary angiograms, weak contrast between the coronary arteries and the background, a new segmentation method based on transition region extraction is proposed. Firstly, the coronary arteries are extracted by using the local complexity method based on Top-hat. Then the coronary arteries are extracted again by using the local complexity method based on Gaussian filter. Finally, the segmentation image is obtained by fusing two extracted coronary arteries images. The experiments indicate that the proposed method has better performance on the small vessels extraction and background elimination. In addition, the method is valuable for diagnosis and the quantitative analysis of vessels.

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