Related by context. Frequent words. (Click for all words.) 55 PET scan 53 positron emission tomography PET 53 PET scans 53 brain scans 52 PET scanning 52 CT computed tomography 52 PET imaging 51 MRI scans 50 heart catheterization 49 Doppler ultrasound 49 transcranial magnetic stimulation 49 fMRI 49 neuroimaging 48 single photon emission 48 fine needle aspiration 48 electrophysiological 48 Positron Emission Tomography PET 48 EEGs 48 CAT scans 47 electroencephalography EEG 47 coronary angiography 46 FDG PET 46 bronchoscopy 46 cystoscopy 46 diffusion tensor imaging 46 myocardial perfusion 46 imaging fMRI 46 echocardiographic 46 femtosecond laser 46 echocardiogram 46 magnetic resonance spectroscopy 46 MR imaging 45 MDCT 45 magnetic resonance imaging 45 sentinel node 45 liver biopsy 45 intensity modulated radiation 45 diagnostically 45 genetically altered mice 45 angiography 45 PET scanners 45 needle biopsy 45 ultrasound exam 45 CT scan 45 biopsy 45 EMDR 45 neuropsychological testing 45 stereotactic 45 myocardial perfusion imaging 44 functional magnetic resonance 44 intravascular ultrasound 44 gamma knife 44 computerized tomography 44 PET scanner 44 ultrasound 44 fMRI scans 44 recurrent prostate cancer 44 CT angiography 44 MRI magnetic resonance 44 radiation therapy 44 Tomography 44 immunohistochemistry 44 Magnetic resonance imaging 44 magnetic resonance MR 44 CAT scan 44 bone marrow biopsy 44 nomogram 44 multimodality 44 electroencephalogram 44 positron emission tomography 44 CT scanning 44 noninvasively 43 electrodes implanted 43 D dimer 43 microarray analysis 43 SPECT 43 DXA 43 minimally invasive techniques 43 breast biopsies 43 nerve conduction 43 Biopsy 43 laser ablation 43 uterine cancers 43 SPECT CT 43 Computed Tomography 43 wavefront 43 x ray imaging 43 angiogram 43 electroencephalogram EEG 43 smaller incisions 43 MRIs 42 Ph.D. postdoctoral fellow 42 sonography 42 MRI 42 magnetic resonance 42 CT scans 42 minimally invasive procedure 42 noninvasive 42 mass spectroscopy 42 warfarin therapy 42 malignant lesions