Comparison Between Myocardial Tomoscintigraphies Using a Semiconductor Camera or a Conventional Camera

This study will be conducted in Nuclear Medicine departments (Nancy Hospital, Bichat Hospital in Paris, Pasteur private hospital in Toulouse), with D.SPECT camera (Cyclopharma). The D.SPECT camera recording will be realized following the conventional camera recording and will not modify the routine programmed examination. Recording times of D.SPECT camera will be maximum 2 minutes for imaging with a strong activity of technetium-99m labeled dye and maximum 4 minutes for imaging with thallium-201 or with a low activity of technetium-99m labeled dye.6 study groups will be analyzed: 4 groups of patients initially doing stress tomoscintigraphy with thallium-201 (group 1) or with technetium-99m labeled dye and then testing 3 principal injection sequences (group 2, 3, 4), and 2 groups of patients initially doing "myocardial viability" assessment with rest tomoscintigraphy with thallium-201 (group 5) or technetium-99m labeled dye.

Recording comparison obtained with 2 cameras will be done according to qualitative and quantitative criteria on image quality and analyzing diagnosis concordance (presence, type and severity of observed abnormalities).

Inclusion criteria

• Understanding and signature of informed consent
• Without any contraindication for tomoscintigraphy and stress techniques according to French Society of Cardiology and Nuclear Medicine criteria, as established for all patients doing this routine examination
• Not in emergency situation and with a stable clinical status (without any sign of heart or coronary failure, without uncontrolled high blood pressure under treatment)
• Having an effective contraception for women of childbearing potential

Exclusion criteria

• Patient under guardianship