Q.AC with CT low dose for attenuation correction

Clinical Case

Patient History 

62 years old female with suspicion of Lung Emboli

Acquisition

Ventilation

40 Mbq 99m Tc DTPA

Perfusion

150  MBq 99mTc MAA  .
LEHR collimator,
360° tomo 120 steps of 10sec , 128x128 zoom 1.0  
CT  120  kV, automA  10  mA, 8 mAs
DLP  22,20   mGy-cm,  CTDIvol  0,52 mGy,

Results

Findings 

Matched defects in ventilation and perfusion scan due to interstitial lung diseases.

Conclusion 

No pulmonary embolism