Related by context. Frequent words. (Click for all words.) 72 PET scans 66 biopsy 62 CT scan 62 MRI scans 61 positron emission tomography PET 60 MRIs 59 MRI 58 CAT scan 58 brain scans 57 radiation therapy 57 CT scans 56 PET CT 56 angiogram 56 mammogram 56 angiography 56 SPECT 55 biopsies 55 colonoscopy 54 magnetic resonance imaging 54 CAT scans 54 ultrasound 54 MRI scan 54 CT scanning 53 echocardiogram 52 radiotherapy 51 chemo 51 radiologists 51 mammography 51 chest X ray 50 virtual colonoscopy 50 x rays 50 magnetic resonance 50 computed tomography 50 radiologist 50 X ray 49 fMRI 49 digital mammography 49 chemotherapy 49 CT scanner 49 cardiac catheterization 49 tumor 48 x ray 48 dense breasts 48 scans 48 MRI scanner 48 radiation treatments 48 oncologist 48 cancerous tissue 47 imaging 47 lumpectomy 46 computed tomography CT 46 molecular imaging 46 mammograms 46 ultrasound imaging 46 oncologists 46 tumors 46 lung tumors 46 prostate 46 lesion 45 neuroimaging 45 lymphoma 45 IMRT 45 mastectomy 45 catheterization 45 lymph nodes 45 X ray imaging 45 diagnosis 45 radiosurgery 45 chest X rays 45 endoscopy 45 colonoscopies 45 CyberKnife 45 sonography 45 scan 45 brachytherapy 45 Herceptin 45 hysterectomy 45 breast tissue 44 ultrasounds 44 echocardiography 44 stem cell transplant 44 X rays 44 breast tumors 44 tomography 44 lymph node 44 breast biopsy 44 functional magnetic resonance 43 adjuvant chemotherapy 43 metastatic cancer 43 precancerous 43 gemcitabine 43 Mammography 43 cataract surgery 43 cancer 43 Magnetic Resonance Imaging 43 Radiation Therapy 42 hormone therapy 42 cytology 42 glioblastoma 42 ovarian cancer 42 diagnostic