Myocardial perfusion SPECT scanning


Service description

Study of myocardial perfusion.

Useful test for the study of coronary artery disease. It assesses myocardial perfusion by detecting the existence of coronary obstructions, as well as the permeability of previously placed stents or bypasses.

It usually consists of two parts, one at rest and the other during exercise. The comparison between the two will give the necessary information to make a diagnosis. Exercise, according to the cardiologist's indications, can be performed on a treadmill or with the administration of medication that simulates the conditions.

Preparation for the study

You will have a light meal, fasting for two hours before the appointment time. During the previous 24 hours you will not drink alcohol, coffee, tea or fizzy drinks. You will come to the consultation without metallic objects on your chest (chains, necklaces or medals) and with loose, comfortable clothing, preferably sportswear.

Effort phase

It is performed in the Cardiology Department on a treadmill, under the full responsibility of the assigned cardiologist. Therefore, the cardiologist will adjust any previous treatment and will authorize or deny the realization of the same. Any doubt or symptom resulting from the test should be consulted with him.

When the patient cannot run on the treadmill, the effort will be made with pharmacological stimulation under the supervision of the cardiologist.

Previously in the Nuclear Medicine Department, a vein will be cannulated for the correct administration of the radiopharmaceutical.

Once in the Cardiology Department, the patient will begin to exercise on the treadmill, which will progressively increase in speed and gradient. When the cardiologist considers it appropriate and during the effort, the radiotracer will be administered. The duration is variable, approximately 10 minutes.

The patient will then be taken to the Nuclear Medicine Department, where the catheter will be removed and the Gammacamera will perform the acquisition of images with the SPECT technique. The approximate duration is 10 minutes.

Resting phase

Simpler than the previous one. The preparation will be the same and will be performed on a different day, entirely in Nuclear Medicine. It will consist of the intravenous administration of the radiotracer to subsequently perform the acquisition of images in the gamma camera with the same SPECT technique. The duration of this second test will be approximately 20 minutes. However, before the test, you will have to remain at rest in the waiting room until you are called.

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