Related by context. Frequent words. (Click for all words.) 70 CT scans 66 CT scan 66 MRIs 66 CAT scan 61 x rays 60 MRI scans 56 X rays 55 scans 54 PET scan 54 echocardiogram 54 PET scans 54 ultrasounds 53 X ray 52 computed tomography 52 CT scanning 52 CT scanner 52 biopsy 51 cardiac catheterization 51 radiographs 50 magnetic resonance imaging 50 MRI 50 biopsies 49 echocardiograms 49 surgeries 49 sonograms 49 x ray 49 ultrasound 48 radiologic 48 chest X ray 48 surgical procedures 48 EKGs 48 sonogram 48 colonoscopy 48 CT scanners 47 chest X rays 47 angiography 47 angiogram 47 workup 47 spinal tap 47 brain scans 47 MRI scan 47 radiation treatments 47 computed tomography CT 46 Scans 46 X ray imaging 46 scan 46 surgery 46 colonoscopies 46 echocardiography 45 tomography 45 fluoroscopy 45 radiation therapy 45 Ultrasound 45 EKG 45 radiologist 44 invasive procedures 44 reconstructions 44 keyhole surgery 44 ultrasound imaging 44 minimally invasive surgery 44 facial reconstruction 43 endoscopes 43 sonography 43 neurosurgeons 43 catheterization 43 imaging 42 PET CT 42 noninvasive 42 radiology 42 chemo treatments 42 diagnosis 42 MR imaging 41 incisions 41 endoscopy 41 PET imaging 41 biopsied 41 doctors 41 ECGs 41 laparoscopic surgery 41 checkups 41 magnetic resonance 41 diagnoses 41 cataract surgery 41 Radiologists 41 SPECT 41 laparoscopy 41 radiography 40 interventional procedures 40 surgeons 40 positron emission tomography PET 40 CT colonography 40 diagnostic tests 40 mammogram 40 autopsies 40 neurosurgery 40 radiosurgery 40 hysterectomy 40 minimally invasive procedures 40 imaging modalities 40 blood transfusions 40 CyberKnife