Sample Question

Question 0

The width of the 2D sector scan has greatest adverse affect on:
A temporal resolution
B lateral resolution
C axial resolution

Answer 0

A temporal

Multiple lines processed slower than single line

Question 1

Compared to fundamental imagining. Use of tissue harmonic imaging has most beneficial effect on:
A temporal resolution
B lateral resolution
C axial resolution

Answer 1

B lateral resolution
TH improves axial and temporal resolution ( reduces nearfield clutter) but helps most with parallel structures,but can exaggerate strong parallel reflector

Question 2

M mode imaging has greatest effect on:
A temporal resolution
B lateral resolution
C axial resolution

Answer 2

A

Time for us sweep only single line, with transmit/ receive cycle 1800/sec

Question 3

Describe cont wave from apex of MVP

Answer 3

From apex: early diastolic e wave then a wave, systole jet high velocity onset mid to late systole

Question 4

? ROA, ? RV , ? RF
Mitral VTI 18.6 CM
Mitral annulus 3.2 CM
MR regurg vel 4.7 CM /sec
Mitral reg VTI 158 CM 
Pisa radius 0.89 CM
Alias vel 0.34

Answer 4

Roa 0.36 CM sq
Rv 57 ml
Rf 38%
Pisa then contin eq for roa, then Rv from roa x VTI , then SV from VTI mv x MVA, the rf from Rv / SV