Related by context. Frequent words. (Click for all words.) 64 spectroscopy 61 spectrometry 61 Positron Emission Tomography PET 60 computed tomography 60 Magnetic resonance imaging 60 magnetic resonance 59 confocal microscopy 59 microscopy 58 imaging 58 electron microscopy 57 fluorescence imaging 57 MR imaging 56 fluorescence microscopy 56 single photon emission 56 ultrasound imaging 56 transmission electron microscopy 56 femtosecond 56 interferometry 56 SPECT 56 x ray imaging 56 Spectroscopy 55 Raman spectroscopy 55 magnetic resonance imaging 55 X ray diffraction 54 X ray imaging 54 laser ablation 54 positron emission tomography PET 54 magnetic resonance spectroscopy 54 scanning electron microscope 54 spectroscopic 54 confocal 53 PET imaging 53 stereotactic 53 DXA 53 synchrotron radiation 53 CT scanning 53 positron emission tomography 52 ESO Very Large Telescope 52 cone beam 52 gamma camera 52 femtosecond laser 52 Fluorescence 52 beamline 52 MDCT 52 voxel 52 laser scanner 52 echocardiography 52 kinematic 52 CT angiography 52 X ray 52 spectrometer 51 ultrasonography 51 ultrasound 51 holography 51 x ray crystallography 51 scanning tunneling microscope 51 Computed Tomography CT 51 noninvasively 51 molecular dynamics 51 crystallography 51 fluoroscopy 51 computed tomography CT 51 coronal 51 sonography 51 transmission electron microscope 51 wavefront 50 Terahertz 50 x ray 50 X ray crystallography 50 fluorescence 50 dosimetry 50 THz 50 imager 50 Microscopy 50 MRI magnetic resonance 50 MRI scanners 49 spatial resolution 49 Ultrasound 49 PET scanner 49 PET scans 49 X ray beam 49 FRET 49 Doppler 49 Magnetic Resonance 49 echocardiographic 49 non invasive 49 mass spectrometry 49 PET scanning 49 photonic crystal 49 CCD camera 49 anisotropy 49 isotropic 48 laser pulses 48 diffraction 48 computational methods 48 gravitational lensing 48 nerve stimulation 48 microfluidic devices 48 spectrometers 48 situ hybridization 48 finite element