[68Ga]Ga-PentixaFor PET/CT in Acute Myocardial Inflammation

Inclusion Criteria: * signed written informed consent * male or female * age ≥ 18 years * patients with suspicion CS (group II) or ICIM (group III) or in their regular follow-up in their first year after HT (group I) * SOC clinical follow-up at the cardiology department in CHUV. Exclusion Criteria: The presence of any one of the following exclusion criteria will lead to exclusion of the participant: * absence of a signed written informed consent * patients aged \< 18 years * claustrophobia * myocardial ischemia in non-invasive perfusion test or coronarography in group II and III * clinically unstable cardiovascular conditions, including: * clinically unstable brady-tachyarrhythmia * severe and symptomatic hypo- or hypertension with documented systolic blood pressure \< 90 mmHg or ≥220 mmHg respectively * cardiogenic shock. * women who are pregnant or breast feeding * intention to become pregnant during the course of the study in group II * previous enrolment into the current study * moderate to severe renal insufficiency (GFR \< 45 mL/min/1,73 m2), with contra-indication to the administration of Gadolinium in group II and III * enrollment of the investigator, his/her family members, employees and other dependent persons * history of any disease or relevant physical or psychiatric condition or abnormal physical finding which may interfere with the study objectives at the investigator judgment * insufficient knowledge of project language, inability to give consent or to follow procedures * the patient makes use of his/her "right not to know" and refuses to be informed about incidental findings