Related by context. Frequent words. (Click for all words.) 69 electroencephalography EEG 66 optical coherence tomography 66 Doppler ultrasound 65 intravascular ultrasound 65 imaging MRI 64 diffusion tensor imaging 64 optical coherence tomography OCT 63 electrophysiological 63 single photon emission 62 electroencephalography 62 Computed tomography 61 immunohistochemical 61 PET positron emission tomography 61 computerized tomography 60 electromyography 60 voxel 60 Positron Emission Tomography PET 60 electroencephalogram EEG 60 intracardiac 60 near infrared NIR 60 electroencephalogram 60 confocal microscopy 59 magnetic resonance MR 59 Tomography 59 tomography 59 EEGs 59 x ray diffraction 58 Magnetic resonance imaging 58 Intraoperative 58 scintigraphy 58 Sonography 58 colorimetric 58 microscopy techniques 58 noninvasive imaging 58 Radiographic 58 myocardial perfusion 57 SPECT imaging 57 noninvasive 57 fluorescence imaging 57 confocal microscope 57 diffractive 57 imaging fMRI 57 intravascular ultrasound IVUS 57 transvaginal 57 microelectrodes 57 photodynamic therapy PDT 57 immunofluorescence 57 positron emission tomography 57 capacitive sensors 57 MDCT 57 MR imaging 57 transcranial magnetic stimulation 57 noninvasively 57 computed tomography CT scan 56 vascular malformations 56 transurethral resection 56 echocardiographic 56 intravascular 56 non invasively 56 Fluorescence 56 optical microscopy 56 palpation 56 Positron Emission Tomography 56 scanning electron microscopy 56 Raman spectroscopy 56 Perfusion 56 transmission electron microscopy 56 positron emission tomography PET 55 fine needle aspiration 55 Echocardiography 55 stenoses 55 spectrometry 55 Computed Tomography 55 radiotracer 55 physiological parameters 55 multispectral imaging 55 MR spectroscopy 55 thermal ablation 55 force microscopy AFM 55 electrocardiography 55 non invasive 55 somatosensory 55 Ablation 55 Radiographs 55 stereotactic 55 interferometric 55 minimally invasive technique 55 fluoroscopic 55 quantitative PCR 54 fundus 54 Preoperative 54 anatomical structures 54 CT computed tomography 54 metabolomic 54 ultrasonic waves 54 Carotid 54 neuroimaging 54 brachial artery 54 spectral imaging 54 electrocardiographic 54 RF ablation