Lege Artis Medicinae

[Dipyridamole test: comparative evaluation of simultaneous 2D echocardiography and 201TL scintigraphy in ischaemic heart disease]

GRUBER Noémi1, FORSTER Tamás1, VARGA Albert1, ÉDES István1, CSANÁDY Miklós1, MESTER János2, CERNAY László2

MARCH 31, 1992

Lege Artis Medicinae - 1992;2(03)

[Simultaneous 2D echocardiography and 2017 scintigraphy were performed during dipyridamole testing (DT) in 57 patients with suspected IHD. The dipyridamole dose was 0.56 mg/kg/bm in 4 minutes. If no effect was observed, the test was continued from the eighth minute with a dose of 0.28 mg/kg/bm in 2 minutes. 2D echomonitoring of the left ventricular motion using apical views was initiated at the beginning of DT and continued for 7 or 13 minutes in case of the longer test. After 6.5 or 12.5 minutes, 74 MBq 201TI was injected intravenously. Standard planar scintigraphy was performed in 3 views starting within 15 minutes. On the basis of the clinical results, 25 patients were subsequently referred for coronary angiography. The sensitivity, specificity and positive and negative predictive values of 2D echocardiography were 79%,55%,69% and 67%, respectively. The corresponding values for 201TIscintigraphy were 93%, 27%, 62%, and 75%. Where the results of both methods were positive, the combined sensitivity and specificity values were 71% and 73%. The results indicate the suitability of both methods for detecting IHD. Furthermore, they suggest a higher specificity, but lower sensitivity of 2D echocardiogaphy as compared to 201TI scintigraphy. Our observations demonstrate that the com binaton of these 2 techniques is very useful in clinical practice for the evaluation of IHD.]

AFFILIATIONS

  1. II. sz. Belgyógyászati Klinika Szent-Györgyi Albert Orvostudományi Egyetem Szeged
  2. Központi Izotópdiagnosztikai Laboratórium Szent-Györgyi Albert Orvostudományi Egyetem Szeged

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