LV Volume / Pressure Overload

Primary Dilated Cardiomyopathy

FINDINGS

IMPRESSION
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Impression:

  • Marked increased LV volume (3+).

  • Mild increased RV uptake (1+).

  • Minor nonspecific reduced uptake in the anterior and inferior walls (arrows). No ischemia detected.

  • Discrepancy between LV volume and perfusion abnormalities suggestive of LV overload condition (CMP ?, Valve disease ?).

    ECHO

  • Moderate LV and RV enlargement with moderate-to-severe generalized contractile dysfunction. LVEF=20-30%
  • Mild mitral regurgitation (2+) without structural valve abnormality
  • Tricuspid regurgitation (2+)

    Comments:
    Neither the history, or clinical findings that explain the marked LV dilatation and diffuse systolic dysfunction (the MR is considered secondary to LV dilatation in this patient). Thus findings consistent with dilated CMP of unknown etiology, usually classified as primary CMP.


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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.