Special Cases
Cocaine Abuse
Case history/ Imaging data
SPECT myocardial perfusion studies were performed twice (shortly after admission, and after one week treatment and cocaine abstinence) using Tc-99m-Sestamibi. Images representing myocardial perfusion were obtained at rest and peak stress.
STUDY 1
(Shortly after admission)
Stress protocol
  • Treadmill / Bruce
    • Duration of stress
  • 12 min
    • Peak heart rate (85%)
  • 70 --> 118 (85%=150)
    		•
    Systolic BP (basal --> peak)
  • 110 --> 120
    		•
    Double product (peak rate x BP)
  • 14,160
    		•
    Reason for termination
  • Chest pain
    • ECG findings
  • 2 mm ST depression
    		•

    STUDY 2
    (Post 1 wk treatment and abstinence from cocaine)
    Stress protocol
  • Treadmill / Bruce
    • Duration of stress
  • 11 min 25 sec
    • Peak heart rate (85%)
  • 70 --> 138 (85%=150)
    		•
    Systolic BP (basal --> peak)
  • 180 --> 130
    		•
    Double product (peak rate x BP)
  • 23,400
    		•
    Reason for termination
  • Fatigue. No chest pain
    • ECG findings
  • Upsloping ST changes
    		•
    IMAGES
    FINDINGS
    IMPRESSION
    (TUTORIAL)
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    Atlas of Myocardial Perfusion SPECT
    © Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
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    Initiated: Nov 19, 1995. Last updated: April 26, 1999.