Related by context. Frequent words. (Click for all words.) 63 EKG 61 ECGs 59 echocardiogram 55 electrocardiogram 55 echocardiograms 54 ECG 52 CT scans 51 angiograms 51 MRIs 49 PET scans 49 defibrillators 48 arrhythmias 48 CAT scans 47 cardiac catheterization 47 MRI scans 47 catheterization 47 defibrillator 47 echocardiography 47 spinal tap 46 cardiac 45 chest X rays 45 angiogram 45 biopsies 45 CT scan 45 sudden cardiac death 45 cardiologists 45 diagnoses 44 Defibrillators 44 CAT scan 43 brain scans 43 irregular heartbeats 43 sudden cardiac arrest 43 CT colonography 43 PET scan 43 spirometry 43 radiologists 43 pulse oximetry 43 cath lab 43 angioplasty 43 arrhythmia 42 ultrasound 42 cardiac rehab 42 apnea 42 ultrasounds 42 radiologist 42 biopsy 42 heart murmur 42 cardiologist 42 AEDs 42 noninvasive 41 ventricular fibrillation 41 angiography 41 sleep apnea 41 angioplasties 41 oxygen saturation 41 IVUS 41 obstructive sleep apnea 41 doctors 41 Defibrillator 41 colonoscopy 41 physicals 40 catheter ablation 40 diagnosing 40 automated external defibrillators 40 diagnostic 40 blocked arteries 40 cardiac rehabilitation 40 fMRI 40 accurately diagnose 40 sonography 40 blood glucose 40 coronary disease 40 coronary artery disease 40 cardiopulmonary resuscitation 40 pedometers 40 heart arrhythmia 40 troponin 40 hypertrophic cardiomyopathy 40 automated external defibrillator 40 biofeedback 39 computed tomography 39 stethoscopes 39 diagnose 39 screening mammograms 39 invasive procedures 39 heartbeats 39 Cardiologists 39 heart disease 39 Radiologists 38 mammography 38 defibrillation 38 cardiovascular 38 physicians 38 scans 38 CT scanner 38 syncope 38 beta blockers 38 mammograms 38 EMTs 38 colonoscopies 38 blood sugar