…gamma cameras to create tomographic images of the left ventricle. In PET (Positron Emission Tomography), radiotracers emit positrons. When a positron collides with an electron…

…Definition and Clinical Purpose Myocardial perfusion imaging (MPI) with single photon emission computed tomography (SPECT) or positron emission tomography (PET) is a radionuclide based method…

…combination with single photon emission computed tomography (SPECT) or positron emission tomography (PET) to assess myocardial perfusion and blood flow. These imaging modalities are highly…

…repertoire of available methods includes echocardiography, cardiovascular magnetic resonance (CMR), cardiac computed tomography (CT), single photon emission computed tomography (SPECT), positron emission computed tomography (PET…

…recovery of ejection fraction, and survival has been challenged by randomized trials. Relationship between viability and LV recovery Observational studies and positron emission tomography (PET…

Procedurer The insertion itself is rarely the difficult part — it is the confirmation of the position that determines whether the tube is safe. A misplaced…

…the ultrasound machine creates an image of the tissues. Thus, the principle of ultrasound imaging is simple: sound waves are sent into the tissue and…

Procedurer What determines the outcome of an emergency intubation is rarely the laryngoscopy itself but what was done before it: how well the patient was…

…from a previous value of at least 50%. A patient with persistently mildly reduced systolic function. This dynamic nature makes prior imaging particularly important when…

…tip, using the thumb and the forefinger, while remaining fingers stabilize the grip. The transducer tends to glide out of position due to the gel…