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 Notes

As we scan from superior to inferior

  • NOTES OF THE HEART ON CT
    As we start from top to bottom we scan through the PA, aorta, then LA RA, RV and LV
    Ashley Davidoff MD

Scales

Going superior to inferior and clockwise

1st stop Aorta LA 

      • FIRST STOP
        Max AP dimension of the LA in the region of the aorta. At this point the LA looks rectangular
        Ashley Davidoff MD 

2nd Stop
4 chamber

NORMAL VOLUME EVALUATION OF THE ATRIA AND VENTRICULAR CAVITIES ON A GATED CT SCAN
Axial images through the 4 chambers at the level of the A-V valves during diastole (mitral valve open) enables an approximate volume evaluation of the chambers. The atria are approximately the same volumes, and are about 1/3 the volume of the ventricles. The right ventricle (RV) is about 2/3 the volume of the left ventricle (LV)
Ashley Davidoff MD
3rd Stop MPA and Bifurcation
3rd STOP
MPA – Aorta
Ashley Davidoff MD

What to do at each stop

Stop 1

NORMAL LINEAR DIMENSION OF THE LA ON A GATED CT SCAN

Stop 2

 

HOW THE SCALES PROCEED
Clockwise Rotation
NORMAL LINEAR DIMENSION OF THE RIGHT ATRIUM ON A GATED CT SCAN
Axial images through the body of the right atrium (RA) at the level of the tricuspid valve shows a linear dimension of 4.2cms (normal up to about 5cms)
Ashley Davidoff MD
NORMAL LINEAR DIMENSION OF THE RIGHT VENTRICULAR CAVITY ON A GATED CT SCAN

NORMAL LINEAR DIMENSION OF THE LEFT VENTRICULAR CAVITY ON A GATED CT SCAN

NORMAL THICKNESS OF THE LV SEPTUM AND FREE WALL ON A GATED CT SCAN

Get a Sense of Relative Volumes
NORMAL VOLUME EVALUATION OF THE ATRIA AND VENTRICULAR CAVITIES ON A GATED CT SCAN

3rd Stop PA and Aorta
NORMAL LINEAR DIMENSION OF THE MPA AND AORTA ON A GATED CT SCAN

Practice Practice Practice
  • Music
    • LAE
    • RAE
    • RVE
      • RV dilated
      • RVH
    • LVE
      • Dilated LV
      • LVH

 

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