wall motion movie show

The gamma camera is activated with the subject's electrocardiogram R wave as an initial signal, and isochronously ingests 16 to 20 frames of blood pool images in one cardiac cycle. The isochronous images of hundreds of cardiac cycles are repeatedly taken, and the images of the same phase are superimposed by a computer to obtain a series of blood pool images of the ventricular end from the end-diastolic phase to the end-systolic phase to the end-diastolic period. They are continuously and repeatedly displayed for movie display, which shows that the image of the heart cavity is periodically reduced and enlarged, and the relaxation of the edge of the image is the movement of the wall of the chamber. The ventricle edges of the end-diastolic and end-systolic phases are outlined by a computer and overlapped to show the movement of the wall of the chamber concisely. Basic Information Specialist Category: Cardiovascular Examination Category: CT Applicable gender: whether men and women apply fasting: not fasting Tips: Relax your body and actively cooperate with your doctor. Normal value The wall motion image is normal and has no specificity. Clinical significance Abnormal results This method is mainly used to observe cardiac function and diagnose coronary heart disease. For example, in patients with myocardial ischemia, the local wall motion is relatively weak after strenuous exercise. The specificity of this performance is very high. The ejection fraction below will not increase significantly after the secondary exercise, and the sensitivity to myocardial ischemia is 90. %the above. Coronary artery lesions can also be roughly located according to the site where the wall motion is low. Myocardial infarction often manifests as low wall motion when it is resting due to local scar formation. The ventricular aneurysm is characterized by no movement of the local ventricular wall or abnormal pulsation at rest, and abnormal pulsation after exercise or more obvious. This method is convenient for observing changes before and after treatment to judge the effect. The people who need to be examined are generally those with poor heart function and coronary heart disease who need to be examined. Precautions Contraindications before examination: Do not eat before imaging examination, do not drink sugary drinks and perform glucose rehydration. Requirements for examination: After injection of imaging drugs, you must keep quiet and avoid exercise, conversation, and chewing. Inspection process The gamma camera is activated with the subject's electrocardiogram R wave as an initial signal, and isochronously ingests 16 to 20 frames of blood pool images in one cardiac cycle. The isochronous images of hundreds of cardiac cycles are repeatedly taken, and the images of the same phase are superimposed by a computer to obtain a series of blood pool images of the ventricular end from the end-diastolic phase to the end-systolic phase to the end-diastolic period. They are continuously and repeatedly displayed for movie display, which shows that the image of the heart cavity is periodically reduced and enlarged, and the relaxation of the edge of the image is the movement of the wall of the chamber. The ventricle edges of the end-diastolic and end-systolic phases are outlined by a computer and overlapped to show the movement of the wall of the chamber concisely. Not suitable for the crowd Inappropriate people: Iodine allergies or serious illness can not accept X-ray angiography.