RA Size CT

 

Buzz

  • RA +/- 5cms (post wall to TV)
  • RA flat back
  • RA and LA volume about the same
  • RA are about 1/3 volume of the RV and LV
  • Overall volume
    • RV volume is <2/3 the volume of LV
    • LA and RA are about 1/3 volume of the RV and LV
    • Peak systole volume in LV and RV should = 1/3 of diastolic volume
  • Shapes
    • LA rectangular with flat back
    • RA flat back
    • LV Ovoid with icecream cone shaped cavity
    • RV triangular shaped and septum bulges into it (“punch in the belly”
  • Linear Size
    • LA +/- 4cms (post wall to MV)
    • LV +/-  5cms (transverse) not >6
    • RV +/- 4cms (transverse) not >6
    • RA +/- 5cms (post wall to TV)
  • Wall thickness
    • Measure in diastole
      • LV 1.2 to 1.4cms
      • RV 3-5mms