Related by context. Frequent words. (Click for all words.) 70 endoscopes 64 endoscopy 60 endoscopic 59 laparoscopy 58 catheter 57 ultrasound 57 fluoroscopy 57 cannula 56 bronchoscopy 54 incision 53 laparoscopic 53 handpiece 53 femtosecond laser 52 abdominal cavity 52 catheters 52 balloon catheter 52 eyepiece 51 cystoscopy 51 esophagus 51 incisions 51 laparoscopic surgery 51 optical microscope 51 surgical instruments 51 CT scanner 51 imager 50 X ray imaging 50 scanning electron microscope 50 minimally invasive procedure 50 ultrasound imaging 49 Endoscopy 49 excimer laser 49 Fujinon 48 minimally invasive 48 Ultrasound 48 minimally invasive surgery 48 ureter 48 CT scanning 48 digital radiography 48 x ray 48 interventional radiologist 48 MRI scanner 47 transmission electron microscope 47 lens 47 Endoscopic 47 interventional radiologists 47 inch incision 47 minimally invasive surgical 47 guidewire 47 X ray 47 duodenum 47 binocular 47 diagnostic ultrasound 47 X ray machine 47 da Vinci Surgical 47 computed tomography CT 46 minimally invasive techniques 46 capsule endoscopy 46 procedure 46 transducer 46 stereotactic 46 invasive procedure 46 electrode 46 imaging 46 electron microscope 46 small intestine 46 laparoscopic procedures 46 angiography 46 rectum 46 fallopian tube 45 PET scanner 45 ultrasound scan 45 tube 45 urethra 45 intestine 45 suture 45 electron beam 45 trachea 45 colon 45 optical fibers 45 CCD camera 45 tomography 45 endoscopic procedures 45 IGRT 44 radiofrequency ablation 44 tubes 44 surgical procedure 44 interventional procedures 44 femtosecond 44 BSGI 44 IntraLase 44 3x optical zoom lens 44 forceps 44 microscopes 44 sigmoidoscopy 44 microsurgery 44 keyhole surgery 44 implant 44 lenses 44 mass spectrometer 44 implantable device 44 intra operative