French study, multicentrique with the cooperation of several hospital centers . 700 patients (200 in the stage 1 and 500 in the stage 2). Every patient will complete questionnaires in a anonymous way.

Stage 1: evaluation of the score in the population and the evaluation of the improvement of the score after an information more detailed by the educational video.

For that purpose, inclusion on one week with comparison of the score obtained during a classic information with delivery of the sheet of information and during a classic information followed by an information more detailed with educational video.

Check during this stage of the significant improvement of the score with the addition of the educational video literally of information and in the oral information supplied usually within the framework of the current care Evaluation of the number of subject included in the 1 week. Stage 2: Comparison of the patient understanding between 2 groups: 1 group received the information by using the information targeted with educational video (modern information) and the other group the classic information considered as the reference.

Inclusion planned over 2 weeks with for every center 1 week of classic information and 1 week of targeted information, allowing a randomized comparison of the 2 methods.

To limit the biases of inclusions and the effect centers, every center will realize 1 week of every method, according to a specific drawing lots in every center to determine with which information (classic or targeted) the study will begin.

Inclusion Criteria:

• hospitalisation for scheduled coronarography

Exclusion Criteria:

• Coronarographies with general anesthesia.
• Patients not speaking or not reading French, or having linguistic knowledge not allowing the delivery of an appropriate information

patients with scheduled coronarography