Coronary Arteries

  Left Anterior Descending Coronary Artery Stenosis
  Stenosi arteria coronaria discendente anteriore 

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A                                                                  B
Left Anterior Descending Stenosis, Color Doppler 

C                                                                  D
Left Anterior Descending Stenosis, Pulsed Doppler 

E                                                                F
Left Anterior Descending Stenosis, Color and Pulsed Doppler 

 

Case # TE0090
  Page 1 of 1  
Age / Sex -- y. / M
Machine Philips Sonos 5500

 

Transd.  Biplane
View Upper esophagus. A: Horizontal plane, short axis at the level of aortic valve. B: As in A, modified to visualize left circumflex artery. 
Abbrev. LA: Left atrium; PA: Pulmonary artery. 

Comments

 A: Baseline exam before coronary artery by-pass surgery. Horizontal arrow points at origin of left main coronary artery from aortic root. Stenosis of proximal anterior descending artery indicated by slight color Doppler aliasing (arrow). B: Left circumflex with color Doppler flow (yellow).  
A: La freccia orizzontale punta all'origine del tronco comune coronarico. Un lieve effetto aliasing color Doppler indica una stenosi del tratto prossimale della discendente anteriore (freccia). B: Arteria circonflessa con flusso color Doppler (giallo). 

 

Transd. Biplane
View Upper Esophagus, as in A. 

Comments

 C: Normal coronary pulsed Doppler flow velocities in left main artery. Velocities are low (30 cm/s) and prevalent in diastole. D: Signficant increase in diastolic velocities (140 cm/s) in proximal anterior descending stenotic segment.
C: Normali velocitą di flusso coronarico (Doppler pulsato) nel tronco comune. Le velocitą sono basse (30 cm/s) e prevalenti in diastole. D: Significativo incremento delle velocitą diastoliche (140 cm/s) nel tratto prossimale stenotico dell'arteria discendente anteriore.

 

 

 

Transd. Biplane
View Upper Esophagus, as in A.  

Comments

 E:Same image as in A, but immediately after coronary artery by-pass grafting; no color Doppler aliasing. F:Pulsed Doppler velocities in proximal left anterior descending artery are reduced (60 cm/s) compared to D.
E: Stessa immagine di A, ma immediatamente dopo intervento di by-pass aorto-coronarico; nessun effetto di aliasing al color Doppler. F: Le velocitą Doppler pulsato nell'arteria discendente anteriore sono ridotte rispetto a D (60 cm/s).

 

 

Web site created/ sito creato:    August 1999
 Updated / aggiornato:      22/03/2006
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Copyright © 1999-2005 by Paolo Barbier

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