Related by context. Frequent words. (Click for all words.) 71 MRI 70 magnetic resonance 66 MRI scans 66 MRIs 63 Magnetic Resonance Imaging 63 computed tomography 62 MR imaging 61 positron emission tomography PET 60 ultrasound 60 ultrasound imaging 60 CT scans 59 PET scans 59 echocardiography 59 positron emission tomography 58 CT scan 58 PET imaging 57 computed tomography CT 56 X rays 56 X ray 56 x rays 55 X ray imaging 55 imaging 55 brain scans 55 tomography 54 PET scan 54 angiography 54 sonography 54 MRI scanners 53 CT scanning 53 MRI scan 53 neuroimaging 52 MRI scanner 52 ultrasonography 52 x ray 52 echocardiogram 52 molecular imaging 51 fMRI 51 echocardiograms 51 SPECT 50 CAT scans 50 PET CT 50 imaging scans 49 functional magnetic resonance 49 radiologic 49 Ultrasound 48 diagnostic 48 imaging fMRI 48 CT scanners 47 CAT scan 47 scans 47 CT scanner 47 biomarkers 47 biopsy 47 fluoroscopy 47 radiation therapy 46 angiogram 46 radiographic 45 radiographs 45 An MRI exam 45 imaging modalities 45 electron microscopy 45 microscopy 45 diagnostic tests 45 MRI exam 45 electrocardiograms 45 minimally invasive surgery 45 mammography 45 abnormalities 44 spectroscopy 44 cardiac catheterization 44 endoscopy 44 electrical stimulation 44 perfusion 44 biofeedback 44 histology 44 noninvasive 44 radiography 43 angiograms 43 radiologists 43 anatomic 43 scan 43 biopsies 43 cardiac 43 lumbar spine 43 retinal 43 CT 43 digital mammography 43 arthroscopic 43 arthroscopy 42 radiopharmaceuticals 42 immunohistochemistry 42 virtual colonoscopy 42 Scans 42 diagnostic imaging 42 neurological 42 non invasive 42 IVUS 42 radiosurgery 42 prostate 42 Brain scans 42 histological