Related by context. All words. (Click for frequent words.) 68 cardiac catherization 65 cardiac cath 65 interventional catheterization 65 endoscopic retrograde cholangiopancreatography ERCGrant Parpan 64 cerebral angiogram 64 minimally invasive laparoscopic surgery 64 cardiac catheterisation 63 transesophageal echocardiography 63 invasive biopsy 63 pacemaker implantation 63 laparoscopic surgeries 63 laproscopic 63 laparascopic surgery 63 laryngoscope 62 laparotomy 62 craniectomy 62 catheterisation 62 thoracoscopy 62 laparascopic 62 catheterization procedure 62 valve prosthesis 62 gynecological procedures 62 transabdominal 62 CT angiogram 62 abdominal ultrasound 62 endoscopic sinus surgery 62 diagnostic cardiac catheterization 62 laproscopic procedure 62 gynecological surgeries 61 laparoscopic appendectomy 61 balloon dilatation 61 gynecologic procedures 61 heart catheterizations 61 CTs MRIs 61 small keyhole incisions 61 thoracentesis 61 Coronary artery bypass 61 vascular ultrasound 61 scleral buckling 61 fluoroscope 61 diagnostic catheterization 61 caths 61 unblock clogged arteries 61 coronary angiogram 61 laparoscopic colorectal 61 invasive cardiology 61 vascular anatomy 60 coblation 60 excisional 60 gynecologic surgery 60 intracardiac echocardiography ICE 60 Balloon sinuplasty 60 anastomotic devices 60 transcranial Doppler 60 Mohs micrographic surgery 60 thymectomy 60 tonsil removal 60 needle aspiration 60 Carotid artery 60 cath 60 cystoscope 60 tubal ligation reversal 60 nonsurgical procedure 60 TOGA procedure 60 balloon angioplasties 60 urologic gynecologic 60 gastroscope 60 nephrectomies 60 endoluminal 60 keratoplasty 60 arthrography 59 sacrocolpopexy 59 ultrasonographic examination 59 Coronary angioplasty 59 percutaneous drainage 59 catheterization 59 heart cath 59 intubating 59 hemo dialysis 59 scarless 59 Peritoneal dialysis 59 minimally invasive endoscopic 59 inserting catheters 59 Cardiac catheterization 59 implanting pacemaker 59 laminectomies 59 balloon sinuplasty 59 ductal lavage 59 computerized tomography scan 59 Positron emission 59 echo cardiogram 59 orthopedics gastroenterology 59 tracheal intubation 59 diagnostic angiography 59 defective aortic valve 59 gall bladder removal 59 laparoscopic myomectomy 59 intra operatively 59 abdominal aneurysms 59 Doppler ultrasound 59 computerized tomography CT scan 59 bone marrow biopsies 59 extracorporeal circulation 59 microdebrider 59 sympathectomy 59 inserts catheter 59 LDL apheresis 59 presurgery 59 Cystoscopy 59 computerized axial tomography 59 noninvasive painless 59 upper endoscopy 59 vascular stenting 59 colon resection 59 acetabular fractures 59 multidetector CT 59 biceps tenodesis 59 barium swallow 59 sonographically guided 59 endoscopist 59 paracentesis 59 surgical implantation 59 artery embolization 59 gastroscopy 59 intraocular lens implantation 59 sigmoidoscope 59 faulty aortic valve 59 invasive catheter 59 urological procedures 58 coronary artery bypass grafts 58 colonscopy 58 extra corporeal membrane 58 colonoscopic 58 lung biopsies 58 angio 58 distraction osteogenesis 58 extracorporeal membrane oxygenation 58 bone marrow aspiration 58 Endometrial ablation 58 catheters inserted 58 Radio Frequency Ablation 58 cardioverter defibrillator 58 laparoscopic nephrectomy 58 Echocardiograms 58 extubated 58 heart catherization 58 perforated appendicitis 58 limb lengthening 58 single incision laparoscopic 58 pelvic ultrasound 58 laparoscopic technique 58 Angiogram 58 sternal closure 58 Balloon angioplasty 58 atrial ablation 58 coil embolization 58 arterial aneurysms 58 intracavitary 58 arteriotomy 58 Minimally invasive surgery 58 Single Incision Laparoscopic Surgery 58 keyhole incisions 58 root canal therapy 58 Sonography 58 laparoscopic cholecystectomy 58 endoscopic surgical 58 topical anesthesia 58 endoscopy procedure 58 valvuloplasty 58 panoramic x ray 58 thoracic endovascular aortic 58 oxygenator 58 small incision cataract 58 Computerized Axial Tomography 58 upper GI endoscopy 58 ureteroscopy 58 lung biopsy 58 percutaneous catheter 58 cautery 58 Doppler echocardiography 58 fluoroscopic 58 removed laparoscopically 58 biventricular pacemaker 58 Minimally invasive procedures 57 Bronchoscopy 57 computed tomography scans 57 cauterization 57 computed tomographic 57 pre operatively 57 invasive angiography 57 urological gynecological 57 minimally invasive laparoscopic 57 MRIs CTs 57 fasciotomy 57 minimal invasiveness 57 laser lipo 57 musculoskeletal ultrasound 57 orthoscopic surgery 57 Mohs surgery 57 abdominal hysterectomy 57 arteriogram 57 involves implanting 57 CAT Scan 57 implanted pacemaker 57 lumbar fusion 57 port cath 57 vaginal incision 57 endometrial biopsy 57 guided percutaneous 57 sugery 57 mitral valve surgery 57 x ray computed tomography 57 vascular insufficiency 57 endovascular aneurysm repair 57 anastomoses 57 Abdominal ultrasound 57 endoscopic visualization 57 Golfer Ballesteros 57 tenodesis 57 lumbar discectomy 57 Electrocardiogram ECG 57 angioplasty stenting 57 Echocardiogram 57 colonography 57 coronary artery stents 57 retroperitoneal 57 awake craniotomy 57 Fine needle aspiration 57 upper gastrointestinal endoscopy 57 Enhanced External Counterpulsation 57 transoral 57 less invasively 57 neobladder 57 inserting catheter 57 cervical fusion 57 mitral valve replacement 57 implant defibrillator 57 transrectal 57 minimally invasive robotic 57 sinuplasty 57 embolectomy 57 wound vac 57 endoscopic surgical procedures 57 laparoscopic colon 57 minimally invasive gynecologic 57 Ultrasonography 57 performed laparoscopically 57 transthoracic 57 minimally invasive endovascular 57 cerclage 57 xrays 57 adnexal masses 57 computed tomography CT scan 57 decortication 57 related bloodstream infections 57 appendiceal 57 nasogastric tubes 57 intraoperative complications 57 diagnostic modality 57 involves inserting catheter 57 wound debridement 57 electrically stimulates 57 laparoscopic minimally invasive 56 endoscopy suites 56 patients undergoing noncardiac 56 cranioplasty 56 DaVinci robot 56 Tickle Lipo 56 gastrostomy 56 fluoroscopy guided 56 microvascular decompression 56 nerve stimulators 56 echocardiograph 56 anterior spinal 56 AF ablation 56 Cardiac Catheterization Lab 56 laparoscopically 56 MRIs magnetic resonance 56 treat menorrhagia 56 Debridement 56 exploratory laparotomy 56 Dr. Hartzell Schaff 56 iMRI 56 minimally invasive aortic valve 56 total abdominal hysterectomy 56 valve implantation 56 multislice 56 noninvasive imaging 56 underwent angiography 56 less invasive laparoscopic 56 tarsal tunnel 56 percutaneous valve 56 subconjunctival injection 56 PET CT scanning 56 phaco emulsification 56 laparoscopic fundoplication 56 lightly sedated 56 anterior vertebral 56 Zenker diverticulum 56 Arteriovenous 56 cerebral angiography 56 cardiopulmonary bypass CPB 56 FinESS 56 Tracheostomy 56 arterial catheter 56 bimanual 56 computerized tomography scans 56 sonographic guidance 56 Gary Onufer 56 CT fluoroscopy 56 pancreatic resection 56 epidural spinal 56 Minimally invasive 56 electrophysiology procedures 56 cm incision 56 cardiac CT angiography 56 fracture fixation 56 thoracic surgeries 56 Mammosite 56 harmonic scalpel 56 chairside 56 benign lesion 56 treat brain aneurysms 56 cryosurgery freezing 56 orthopedics urology 56 Laparoscopic surgery 56 robotically assisted 56 x ray angiography 56 Xrays 56 electrode pads 56 excisional biopsy 56 diagnostic laparoscopy 56 fundus photography 56 cataract extraction 56 Wittgrove 56 laparoscopes 56 keratectomy 56 Vaser 56 transurethral resection 56 Left Ventricular Assist Device 56 cancerous polyp 56 pulmonary angiography 56 preoperative evaluation 56 urethral stricture 56 X rays ultrasounds 56 clot busting medication 56 abdominal aortic 56 fluoroscopically guided 56 ablations 56 angiography angioplasty 56 abdominal adhesions 56 transesophageal 56 gastric imbrication 56 craniotomy 56 skin abscesses 56 lung resection 56 dissolvable sutures 56 nerve stimulator 56 post operatively 56 stent insertion 56 Coronary angiography 56 Surgical excision 56 knee arthroscopies prostate biopsies 56 extracorporeal shock wave lithotripsy 56 Catheterization 56 Fat grafting 56 insert catheter 56 cardiac perfusion 56 direct laryngoscopy 56 synthetic grafts 56 balloon dilation 56 threading catheter 56 electrophysiology lab 56 Balloon Sinuplasty 55 chiropractic adjustment 55 lumbar spine fusion 55 undergoing laparoscopic surgery 55 functional endoscopic sinus 55 septal defect 55 noninvasive ultrasound 55 laparoscopic partial nephrectomy 55 nerve decompression 55 tomography scan 55 hemodynamically unstable 55 ophthalmoscopy 55 diagnostic mammogram 55 bladeless LASIK 55 Cath Lab 55 esophageal resection 55 laryngoscopy 55 disposable catheter 55 ultra sonography 55 video assisted thoracoscopic 55 abdominal incisions 55 computerized tomographic 55 invasive diagnostic 55 Optomap 55 dilators 55 balloon valvuloplasty 55 fluoroscopic guidance 55 Heartmate II 55 arteriography 55 unclog arteries 55 trabeculectomy 55 prophy 55 orthopedic spinal 55 palpate 55 reopen clogged arteries 55 minimally invasively 55 radical hysterectomy 55 arterial grafts 55 elective PCI 55 canaloplasty 55 discogenic pain 55 cancerous polyps 55 cardiac catheter 55 endovascular procedures 55 aspirators 55 laproscopic surgery 55 neurosurgical procedures 55 Pulmonary artery 55 sterile disposable 55 computed tomographic scan 55 Dr. Robert Spetzler 55 x rays MRIs 55 unblock arteries 55 detect abnormalities 55 color Doppler ultrasound 55 pulmonary artery catheterization 55 tumescent liposuction 55 gallbladder removals 55 Scintigraphy 55 computed tomography CT scanner 55 defibrillator implantation 55 para aortic 55 arthroscopes 55 reimplantation 55 pacemaker implant 55 monitoring disposables endosurgery 55 cardiac catheterization 55 CT computerized tomography 55 postsurgery 55 Balloon Sinuplasty TM 55 pelvic anatomy 55 venipuncture 55 intravascular catheters 55 MRIs CAT scans 55 manometry 55 maxillo facial 55 craniotomies 55 donor nephrectomy 55 Dr. Raymond Onders 55 hysteroscopy 55 cardio pulmonary bypass 55 interventional neuroradiologist 55 intensity modulated 55 stereotactic biopsy 55 hyperbaric oxygen treatment 55 percutaneous coronary 55 endovenous laser therapy 55 Stereotactic radiosurgery 55 surgury 55 lumbar fusions 55 endonasal 55 TRAM flap 55 vitreo retinal 55 x ray mammography 55 orthokeratology 55 PRP injections 55 Atrial Septal Defect ASD 55 septoplasty 55 catheterisation laboratory 55 catherization lab 55 endoscopic retrograde 55 wedge resection 55 Noor Almaleki underwent 55 color Doppler 55 Letterman quintuple bypass 55 bone grafting procedures 55 Nissen fundoplication 55 EKG readings 55 median sternotomy 55 angioplasty procedures 55 Single Incision 55 mammograms ultrasounds 55 artificial sphincter 55 adenoidectomy 55 cancerous nodules 55 tracheotomies 55 nasal endoscopy 55 malpositioned 55 angiographies 55 resonance imaging 55 painless noninvasive 55 3T MRI 55 Coronary CTA 55 gastrointestinal endoscopy 55 ovarian malignancy 55 Dr. Dean Toriumi 55 defibrillator implant 55 thoracoscopic 55 AF ablation procedures 55 mammogram ultrasound 55 EBUS 55 distal anastomosis 55 cardiac ablation procedures 55 undergoing elective cosmetic 55 implantable vascular 55 minimally invasive surgeries 55 abdominal computed tomography 55 clot busting medications 55 Cardiac Cath 55 laparoscopic bariatric surgery 55 HIPEC 55 bronchoscopes 55 X ray mammography 55 colon rectal 55 laser refractive 55 defibrillator pacemaker 55 Abdominoplasty 55 cardioplegic arrest 55 Ileus 55 tomography scans 55 ophthalmoscope 55 chiropractic manipulations 55 laparoscopies 55 radioiodine therapy 55 Duodenal 55 cardiovascular electro physiologist 55 abdominal pelvic 55 intra ocular lens 55 antibiotic impregnated 55 endoscopic surgery 55 Blepharoplasty 55 carotid artery stents 55 transvaginal sonography 55 photon laser 55 Functional Endoscopic Sinus Surgery 55 cardiac catheterization procedure 55 urinary blockage 55 bioartificial 55 dick enlargement 54 reoperations 54 catheter insertion 54 MRIs ultrasounds 54 endothelial keratoplasty 54 posterior cervical 54 Balloon kyphoplasty 54 node dissection 54 HeartNet 54 indwelling catheter 54 catheter inserted 54 Cholecystectomy 54 transapical aortic valve 54 natural orifices 54 carotid stents 54 patent ductus arteriosus 54 prostate TURP 54 spinal epidural 54 Nonsurgical 54 retinal surgeon 54 transcervical 54 venography 54 endoscopy suite 54 VCUG 54 bypass grafting 54 transradial 54 surgical biopsy 54 multislice CT 54 pediatrics obstetrics 54 intubate 54 microsurgical techniques 54 coronary CTA 54 millimeter incision 54 prehospital setting 54 minimally invasive technique 54 diathermy 54 coronary catheterization 54 uterine fibroid embolization 54 postprocedure 54 scalpel blade 54 treated nonsurgically 54 partial nephrectomies 54 Vasclip 54 colonoscopes 54 gynaecologic 54 chemo therapy 54 lumbar puncture 54 inguinal hernia repair 54 liver resection 54 benign biliary strictures 54 directed thrombolysis 54 bariatric procedure 54 arthroscopically 54 IOL implantation 54 craniofacial reconstruction 54 percutaneous biopsy 54 surgery 54 transrectal ultrasound 54 arterial stents 54 da Vinci Robot 54 discectomy 54 recurrent bladder 54 stents pacemakers 54 inserting stent 54 benign prostatic hyperplasia enlarged 54 diverticular 54 Ultrasonographic 54 molar pregnancy 54 unruptured aneurysm 54 rhizotomy 54 pathologic correlation 54 CT angiography CTA 54 aortic coarctation 54 coronary arteriography 54 underwent laparoscopic surgery 54 vaginal hysterectomy 54 Vitrectomy 54 urethroplasty 54 undergo catheterization 54 percutaneous nephrolithotomy 54 capsule endoscope 54 stent graft placement 54 intraductal 54 spinal manipulations 54 lumbar decompression 54 atrial fibrillation ablation 54 pulse ox 54 Y Gastric Bypass 54 eBx 54 SILS procedure 54 pulmonic valve 54 surgical procedure 54 Dural Sealant 54 electrophysiology labs 54 cardiac catheterizations 54 gallbladder removal 54 embolisation 54 hysteroscopic sterilization 54 thermogram 54 chemical peels microdermabrasion 54 lavage 54 hemodynamically stable 54 intracapsular 54 Dacron graft 54 epicardial ablation 54 thoracoscopic lobectomy 54 plication 54 angioplasty stents 54 osteoporotic compression fractures 54 artery bypass 54 MRIs X rays 54 SPECT PET 54 cochlear ear 54 mri 54 CTO recanalization 54 vascular interventional 54 stent implants 54 foam sclerotherapy 54 otologic 54 undergoing elective 54 arthroscopies 54 biliary obstruction 54 cardiograms 54 ECMO machine 54 Sentinel Lymph Node Biopsy 54 esophageal manometry 54 LapBand 54 x rays ultrasounds 54 da Vinci robot 54 surgical biopsies 54 percutaneous intervention 54 valve replacements 54 hip arthroscopy 54 RVOT 54 urodynamics 54 Plymouth Derriford Hospital 54 unsightly veins 54 orthopedics cardiology 54 catheterizations 54 flexible bronchoscope 54 Apollo Hospitals Chennai 54 interventional cardiac catheterization 54 tiny keyhole incisions 54 perforated colons 54 transvenous 54 thoracic aortic aneurysms 54 endoscopic ultrasound 54 corneal flap 54 neuro interventional 54 extracorporeal membrane oxygenation ECMO 54 lumbar intervertebral 54 suction catheter 54 myomas 54 FFR measurement 54 transnasal 54 tissue expander 54 cardiac cath labs 54 endovascular interventions 54 sternotomy 54 electrocardiographs 54 gastrointestinal endoscopic 54 thrombolytic therapy 54 pars plana vitrectomy 54 curettage 54 Computed tomographic 54 hyperbaric treatment 54 chiropractic manipulation 54 surgical revascularization 54 CT scans ultrasounds 54 antireflux surgery 54 Marcellin Little 54 CT angiograms 54 undergo cardiac catheterization 54 spinal immobilization 54 stem cell engraftment 54 elective orthopedic 54 electrocardiograph 54 condition Arrhythmogenic Right 54 urography 54 anterior pelvic 54 tiny incisions 54 chondral 54 Steroid injections 54 perfusion defects 54 PACS workstation 54 cardiology neurology 54 biopsy needle 54 pediatric otolaryngologist 54 DEXA scans 54 Intravascular Ultrasound IVUS 54 swollen lymph node 54 catheter threaded 54 Spinal cord 54 pa tients 54 diagnostic arthroscopy 54 percutaneous vertebroplasty 54 clot busters 54 transfusion syndrome 54 microsurgical 54 pneumatic compression 54 scaphoid fractures 54 surgical staplers 54 fetal echocardiogram 54 vacuum extractor 54 osteochondral allograft 54 myotomy 53 bone marrow biopsy 53 antireflux 53 pessary 53 renal calculi 53 neurosurgical procedure 53 thoracolumbar spine 53 intravascular stent 53 cardiac tamponade 53 neurosurgeries 53 intraocular lens implant 53 MDCT scans 53 skin grafting 53 urine dipstick 53 minimally invasive outpatient 53 adjustable gastric banding 53 repair TEVAR 53 preventive dentistry 53 subclavian vein 53 undergoing cardiac catheterization 53 abdominal ultrasounds 53 imaging MRI 53 Littrup 53 TUMT 53 barium enema 53 enhanced external counterpulsation 53 ablation procedures 53 Tomography scans 53 myocardial revascularization 53 Selphyl 53 subconjunctival 53 noninvasive outpatient 53 Computerized Tomography 53 Mitral Valve 53 implantable cardioverter 53 leaky mitral valve 53 Carotid artery stenting 53 prolapses 53 gum grafting 53 VATS lobectomy 53 Intra operative 53 ganglion cysts 53 Sean Boutros 53 thrombosed 53 externally programmable 53 assisted radical prostatectomy 53 implanted subcutaneously 53 Total Knee Replacement 53 Ectopia Cordis 53 laparoscopic techniques 53 endotracheal intubation 53 venous drainage 53 perfusion imaging 53 REMINDER ORLive Presents 53 intraoperative imaging 53 ARTISS 53 #.#T MRI 53 bronchoscopic procedure 53 coronary lesion 53 cathlab 53 suppurative 53 extracorporeal 53 partial meniscectomy 53 cardiology urology 53 TAVI procedure 53 malignant polyp 53 percutaneous endoscopic gastrostomy 53 electro physiology 53 radiofrequency catheter ablation 53 Synchrony lens 53 medicated stent 53 nebulisers 53 arthroscopic procedures 53 catheterization lab 53 hemispherectomy 53 electrocautery 53 Alan Kadish 53 pathologic examination 53 SPECT CT imaging 53 endometrial ablation 53 curette 53 surgical 53 telerobotic surgery 53 implanting stents 53 PAP smears 53 microsurgery techniques 53 renal biopsy 53 esophagogastric 53 IV sedation 53 postoperative infections 53 debride 53 laparoscopic hysterectomy 53 coronary artery stenting 53 percutaneous procedures 53 osseointegration 53 corrective surgeries 53 Amniocentesis 53 gamma knife 53 TKAs 53 Caesarian sections 53 osteoid osteoma 53 endoscopic mucosal resection 53 implant stents 53 da Vinci robotic 53 pancreatic transplantation 53 laparoscopic surgical 53 transesophageal echocardiogram 53 epidural abscess 53 external fixators 53 Kenneth Ellenbogen 53 tricuspid valve repair 53 AirStrip Cardiology 53 decompressive surgery 53 Color Doppler 53 Computed tomography CT 53 temporal lobectomy 53 gooey amyloid 53 bronchoscopic procedures 53 clogged carotid arteries 53 oral maxillofacial 53 cryotherapy freezing 53 Ebstein anomaly 53 limbal stem cells 53 anaesthesiology 53 oncology orthopedics 53 corneal grafting 53 mesenteric ischemia 53 cytoreductive surgery 53 Doppler ultrasonography 53 computed tomography scanner 53 ophthalmology orthopedics 53 mitral valve regurgitation 53 occipital nerve 53 vagal nerve stimulator 53 explanted 53 tear osmolarity 53 ischemic mitral regurgitation 53 diagnose coronary artery 53 cath labs 53 interventional cardiac 53 cardiac catheterization laboratory 53 DynaCT 53 lasik eye 53 laparoscopic procedure 53 systemic hypotension 53 neo natal ICU 53 intraventricular 53 epigastric 53 endobronchial 53 DIEP flap 53 tissue perfusion 53 spinal metastases 53 Mitral valve 53 computed tomography angiography 53 Implantable Cardioverter Defibrillator ICD 53 bronchoscopic 53 tension pneumothorax 53 postoperative hemorrhage 53 needle biopsies 53 assisted laparoscopic prostatectomy 53 including bariatric thoracic 53 thoracoabdominal 53 prescribed blood thinners 53 Intuitive Surgical da Vinci 53 Mechanical ventilation 53 ultrasound 53 laser trabeculoplasty 53 Coronary Angiography 53 osteochondral 53 Antibiotic prophylaxis 53 diagnostic catheterizations 53 spirometers 53 diabetic ulcer 53 CAT scans MRIs 53 ventouse 53 Dr. Heinz Hoenecke 53 Vasotrac 53 contractures 53 lumpectomy mastectomy 53 surgeons implanted 53 catheter insertions 53 flexible endoscope 53 DALK 53 emergently 53 involves threading catheter 53 minimally invasive techniques 53 vitrectomy 53 Virtual colonoscopies 53 aneurysm sac 53 optical coherence tomography 53 MDCT angiography 53 epiretinal 53 cardiac defibrillator implanted 53 inserted percutaneously 53 Computed tomography 53 polyp detection 53 esophagectomy 53 surgical interventions 53 Coronary bypass 53 RealHand 53 progressed Arauco 53 Ecmo 53 sonographic evaluation 53 Stereotactic 53 EVLT ® 53 nondiagnostic 53 ECLS 53 Post operatively 53 urologic surgeons 53 helical CT 53 color Doppler sonography 53 smaller incisions 53 multidetector row 53 Dr. Cadeddu 53 obstructive lesions 53 laparoscopic hysterectomies 53 hepatectomy 53 invasive coronary angiography 53 fibroid tumor 53 coronary bypass grafts 53 atrioventricular septal defect 53 endoscopic examinations 53 Capsule endoscopy 53 craniofacial surgery 53 gynecology obstetrics 53 endovascular stent 53 Coblation 53 chronic osteomyelitis 53 PET Scan 53 urethral catheter 53 intracardiac 53 bronchoscopy 53 endoscopic biopsy 53 vitreoretinal 53 pediatric radiology 53 Electron beam 53 Silvio Sterman 53 podiatric surgery 53 cardiac angiography 53 GORE TAG Device 53 stent wire mesh 53 Intuitive da Vinci 53 tomotherapy 53 preop 53 emergency caesarian section 53 transcatheter closure 53 Islet cells 53 EndoFLIP 53 muscle stimulators 53 spiral CT scan 53 gauge vitrectomy 53 bladder rectum 53 recombinant tissue plasminogen