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Evaluation of advancing the standard valve dysfunction by multidetector-row CT.

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Electrocardiographically gated multidetector-row computed tomography (MDCT) is a valuable tool for diagnosing prosthetic valve dysfunction (PVD) in ATS valves. MDCT accurately identifies abnormalities like masses and aneurysms causing PVD, aiding in treatment decisions.

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Area of Science:

  • Cardiology
  • Radiology
  • Medical Imaging

Background:

  • Prosthetic valve dysfunction (PVD) requires accurate diagnosis.
  • Electrocardiographically gated multidetector-row computed tomography (MDCT) is an emerging imaging modality.

Purpose of the Study:

  • To evaluate the diagnostic utility of MDCT for PVD in ATS valves.
  • To correlate MDCT findings with echocardiography, cineradiography, and surgical findings.

Main Methods:

  • Twenty-four patients with ATS valves underwent MDCT, echocardiography, and cineradiography.
  • MDCT findings were compared with subsequent reoperation results when available.

Main Results:

  • MDCT identified subprosthetic masses in all 5 patients with PVD and in 4 with normal function.
  • MDCT detected annular aneurysms and valvular masses, consistent with reoperation findings.
  • CT attenuation values differentiated between masses, pannus, and thrombus.

Conclusions:

  • MDCT is a reliable diagnostic technique for ATS valve PVD.
  • MDCT can identify the specific abnormalities causing PVD, guiding clinical management.