Congenital coronary anomalies in adults: Comparison of anatomic course visualization by catheter angiography and electron beam CT

2005 ◽  
Vol 66 (1) ◽  
pp. 34-42 ◽  
Author(s):  
Esat Memisoglu ◽  
Gultekin Hobikoglu ◽  
M. Savas Tepe ◽  
Tugrul Norgaz ◽  
Tuba Bilsel
Keyword(s):  
Electron Beam ◽  
Catheter Angiography ◽  
Coronary Anomalies ◽  
Electron Beam Ct ◽  
Congenital Coronary Anomalies

Anomalies of coronary arteries: do we know everything about them ?

2019 ◽  
Vol 22 (6) ◽  
pp. 10-12
Author(s):  
V. E. Sinitsyn
Keyword(s):  
Blood Flow ◽  
Coronary Artery ◽  
Coronary Blood Flow ◽  
Catheter Angiography ◽  
Functional Tests ◽  
Coronary Anomalies ◽  
Coronary Ct ◽  
High Incidence ◽  
Flow Through ◽  
Congenital Coronary Anomalies

The editorial discusses the original article of E.F. Abbasov et al. “Epidemiology anomalies of coronary artery origin and course”. Editorial stresses high incidence of congenital coronary anomalies. It discusses types of such anomalies, their classifications and clinical significance. Myocardial “bridges” are the most frequent anomaly of coronary artery course. This anomaly is benign but in rare cases when obstruction of the coronary blood flow through the tunneled segment of the artery is suspected, use of additional functional tests (studies of myocardial perfusion or coronary blood flow) is recommended. It is important to note that coronary CT-angiography has advantages over traditional catheter angiography in detection of coronary anomalies.

Horseshoe lung: demonstration by electron-beam CT.

1997 ◽  
Vol 70 (837) ◽  
pp. 964-966 ◽  
Author(s):  
M Takahashi ◽  
K Murata ◽  
M Yamori ◽  
M Okuno ◽  
M Nakagawa ◽  
...  
Keyword(s):  
Electron Beam ◽  
Horseshoe Lung ◽  
Electron Beam Ct

Electron-beam CT: The effect of using a correction function on coronary artery calcium quantitation

1999 ◽  
Vol 6 (1) ◽  
pp. 40-48 ◽  
Author(s):  
Lloyd E. Greaser ◽  
Hyo-Chun Yoon ◽  
Richard T. Mather ◽  
Michael McNitt-Gray ◽  
Jonathan G. Goldin
Keyword(s):  
Electron Beam ◽  
Coronary Artery ◽  
Coronary Artery Calcium ◽  
Correction Function ◽  
Electron Beam Ct

scholarly journals Detection of local lung air content by electrical impedance tomography compared with electron beam CT

2002 ◽  
Vol 93 (2) ◽  
pp. 660-666 ◽  
Author(s):  
Inéz Frerichs ◽  
José Hinz ◽  
Peter Herrmann ◽  
Gerald Weisser ◽  
Günter Hahn ◽  
...  
Keyword(s):  
Electron Beam ◽  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Artificial Ventilation ◽  
Correlation Coefficients ◽  
Electron Beam Computed Tomography ◽  
Local Effects ◽  
Impedance Tomography ◽  
Air Content ◽  
Electron Beam Ct

The aim of the study was to validate the ability of electrical impedance tomography (EIT) to detect local changes in air content, resulting from modified ventilator settings, by comparing EIT findings with electron beam computed tomography (EBCT) scans obtained under identical steady-state conditions. The experiments were carried out on six anesthetized supine pigs ventilated with five tidal volumes (Vt) at three positive end-expiratory pressure (PEEP) levels. The lung air content changes were determined both by EIT (Goe-MF1 system) and EBCT (Imatron C-150XP scanner) in six regions of interest, located in the ventral, middle, and dorsal areas of each lung, with respect to the reference air content at the lowest Vt and PEEP, as a change in either local electrical impedance or lung tissue density. An increase in local air content with Vt and PEEP was identified by both methods at all regions studied. A good correlation between the changes in lung air content determined by EIT and EBCT was revealed. Mean correlation coefficients in the ventral, middle, and dorsal regions were 0.81, 0.87, and 0.93, respectively. The study confirms that EIT is a suitable, noninvasive method for detecting regional changes in air content and monitoring local effects of artificial ventilation.

Effects of scanning and reconstruction parameters on image quality in electron-beam CT angiography: Coronary artery phantom study

2000 ◽  
Vol 7 (11) ◽  
pp. 927-933 ◽  
Author(s):  
Bin Lu ◽  
Ruping Dai ◽  
Hua Bai ◽  
Sha He ◽  
ShiLiang Jiang ◽  
...  
Keyword(s):  
Electron Beam ◽  
Coronary Artery ◽  
Image Quality ◽  
Ct Angiography ◽  
Phantom Study ◽  
Electron Beam Ct

Simple single-section method for measurement of left and right atrial volumes with electron-beam CT

1999 ◽  
Vol 6 (8) ◽  
pp. 481-486 ◽  
Author(s):  
Matthew J. Budoff ◽  
Songshou Mao ◽  
ShaoJung Wang ◽  
Hamid Bakhsheshi ◽  
Bruce H. Brundage
Keyword(s):  
Electron Beam ◽  
Right Atrial ◽  
Section Method ◽  
Single Section ◽  
Electron Beam Ct ◽  
Left And Right

A Combination of Hypercholesterolemia and Hypertension Augments an Impairment in Intra-Renal Perfusion Responses

Hypertension ◽  
2000 ◽  
Vol 36 (suppl_1) ◽  
pp. 712-712
Author(s):  
Martin G Rodriguez-Porcel ◽  
James D Krier ◽  
Amir Lerman ◽  
Juan C Romero ◽  
Lilach O Lerman
Keyword(s):  
Risk Factors ◽  
Electron Beam ◽  
Cardiovascular Risk ◽  
Renal Damage ◽  
Detrimental Effect ◽  
Early Stage ◽  
Renal Perfusion ◽  
Target Organ ◽  
Cholesterol Levels ◽  
Electron Beam Ct

P105 The kidney is a target organ for cardiovascular risk factors, such as atherosclerosis and hypertension (HT), and is particularly susceptible to their combination. Even at an early stage, hypercholesterolemia (HC) and HT are individually associated with impaired renal perfusion responses to challenge with vasodilators. However, the effect of combined HC and HT on renal perfusion remains uncertain. To examine this, regional renal perfusion response to the renal vasodilator acetylcholine (Ach) was quantified in 4 groups of pigs, using electron beam CT, after 12 weeks of either normal (n=6), HC diet (n=6), HT (unilateral renal artery stenosis, n=5), or combined HC and HT (HC+HT, n=6). The HC and HC+HT groups had increased cholesterol levels vs. normal and HT (430±82 and 351±52 vs. 71±6 and 83±4 mg/dl, ANOVA p<0.05, respectively). Mean arterial pressure was significantly elevated in HT and HC+HT vs. normal and HC (132±6 and 127±13 vs. 88±5 and 92±6 mmHg, p<0.05, respectively). The combination of HC and HT was associated with a greater impairment in cortical and papillary perfusion responses than HC or HT alone (Table). Medullary perfusion response was not significantly different among the four groups (Table). These results demonstrate that concurrent HC and HT have a greater detrimental effect on renal perfusion responses than HC or HT alone, and that this effect is regionally heterogeneous. These effects may potentially lead to enhanced renal functional impairment and may play a role in the progression of renal damage in HT and atherosclerosis.

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