Medical abbreviations and acronyms (T)

This article contains a list of commonly used medical abbreviations and acronyms that start with the letter T and may be encountered in medicine and radiology (please keep the main list and any sublists in alphabetic order).

A - B - C - D - E - F - G - H - I - J - K - L -M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z - misc

• T
  • temperature
  • temporal (e.g. T-bone)
  • tera (SI prefix for 10¹²)
  • tesla (SI unit of magnetic flux density)
  • thoracic
  • threonine (single letter amino acid code)
  • thymine (DNA nucleotide)
  • time
• T½: half-life time
• T1
  • TNM stage
  • spin-lattice time
• T1DM: type 1 diabetes mellitus
• T1RF: type 1 respiratory failure
• T1WI: T1 weighted imaging
• T2
  • spin-spin time
  • TNM stage
• T2DM: type 2 diabetes mellitus
• T2RF: type 2 respiratory failure
• T2WI: T2 weighted imaging
• T3
  • tri-iodothyronine (a.k.a. thyronine)
  • TNM stage
• T4
  • thyroxine
  • TNM stage
• T1-T12: thoracic vertebrae
• T13: trisomy 13
• T18: trisomy 18
• T21: trisomy 21
• TA
  • Terminologia Anatomica
  • transabdominal (ultrasound)
  • tunica albuginea
• T&A: tonsillectomy and adenoidectomy
• TAA: thoracic aortic aneurysm
• TACE: transcatheter arterial chemoembolisation
• TAH: total abdominal hysterectomy
• TAHBSO: total abdominal hysterectomy and bilateral salpingo-oophorectomy
• TAI:
  • traumatic aortic injury
  • traumatic axonal injury
• TAPS: traumatic abruptio placenta scale
• TAPVR: total anomalous pulmonary venous return
• TAR: thrombocytopenia with absent radius syndrome
• TATT: tired all the time
• TAVI: transcatheter aortic valve implantation
• TAVR: transcatheter aortic valve replacement
• TB
  • terabyte
  • tuberculosis
• TBI
  • toe-brachial index
  • total body irradiation
  • traumatic brain injury
• TBSA: total body surface area (burns)
• tBW: transmitter (radiofrequency) bandwidth
• TC
  • Tenckhoff catheter
  • transverse colon
• Tc: technetium
• TCC: transitional cell carcinoma
• TDC: thyroglossal duct cyst
• TDR-TB: totally drug-resistant tuberculosis
• TDS: three times a day (drug prescriptions, L: ter die sumendum)
• TE: time to echo or echo time
• TEA: total elbow arthroplasty
• TECAB: totally endoscopic coronary artery bypass
• TED: thromboembolic disease (e.g. TED stockings)
• TEE: transoesophageal echocardiography
• TEETH: tried everything else, try homeopathy
• TEF: tracheo-oesophageal fistula
• TEN: toxic epidermal necrolysis
• TENS: transcutaneous electrical nerve stimulation
• TER: total elbow replacement
• TESA: testicular sperm aspiration
• TET: tubal embryo transfer
• TEVAR: thoracic endovascular aortic repair 
• TFC: triangular fibrocartilage
• TFCC: triangular fibrocartilage complex
• TFE: turbo field echo
• TFL: tensor fasciae latae
• TFTs: thyroid function tests
• TGA
  • Therapeutic Goods Administration (Australian equivalent of the FDA)
  • transient global amnesia
  • transposition of the great arteries
• TGDC: thyroglossal duct cyst
• TGSE: turbo gradient spine echo
• TGV: transposition of the great vessels
• TH
  • teaching hospital
  • thyroid hormone
• Th: thorium
• THA: total hip arthroplasty
• THAD: transient hepatic attenuation differences
• THC: tetrahydrocannabinol (principle active component of marijuana)
• THID: transient hepatic intensity differences
• THR: total hip replacement
• Thr: threonine
• THRIVE: T1W high resolution isotropic volume examination (Philips)
• THz: terahertz
• TI
  • terminal ileum
  • thermal index
  • time to invert
• Ti: titanium
• TIA: transient ischaemic attack
• Tib: tibia
• Tics: diverticula
• TID: transient ischaemic dilatation
• TIFF: tagged image file format
• TIMI score: thrombolysis in myocardial infarction
• TIPC: tunnelled indwelling pleural catheter
• TIPIC: transient perivascular inflammation of the carotid artery
• TI-RADS: thyroid image reporting and data system
• TIRM: turbo inversion recovery magnitude
• TKA: total knee arthroplasty
• TKI: tyrosine kinase inhibitor
• TKR: total knee replacement
• TL
  • thoracolumbar
  • tubal ligation
• Tl: thallium
• TLA: three letter acronym
• TLC
  • tender loving care
  • total lung capacity
  • triple lumen catheter
• TLE: temporal lobe epilepsy
• TLH: total laparoscopic hysterectomy
• TLIF: transforaminal lumbar interbody fusion
• TLSO: thoracolumbosacral orthosis
• TM
  • transverse magnetisation
  • tympanic membrane
• Tm: thulium
• Tmax: time to maximum
• TMJ
  • temporomandibular joint
  • trapeziometacarpal joint
• TMS: tumefactive multiple sclerosis
• TMTJ: tarsometatarsal joint
• Tn: troponin
• TNM: tumour-nodes-metastases
• T&O: trauma and orthopaedics
• TOA: tubo-ovarian abscess
• TOC: trial of (urinary) catheter
• TOE: transoesophageal echocardiography
• TOF
  • tetralogy of Fallot
  • time-of-flight
  • tracheo-oesophageal fistula
• TOG: tracheo-oesophageal groove
• TOLAC: trial of labour after caesarean section
• Tomo: tomogram
• TONE: tilt optimised non-saturated excitation
• TOP:
  • tail of pancreas
  • tender on palpation
  • termination of pregnancy
• TORCH: toxoplasmosis, other (syphilis, varicella, parvovirus), rubella, CMV, herpes
• TOS: thoracic outlet syndrome
• TOV: trial of void
• TP: transverse process
• tPA: tissue plasminogen activator
• TPC: tunnelled pleural catheter
• TPN: total parenteral nutrition
• TPT
  • tibioperoneal trunk
  • transpyloric tube
• TR
  • time to repeat
  • tricuspid regurgitation
• T/R: transmit receive (coil)
• TRALI: transfusion-related acute lung injury
• TRAQ: time-resolved acquisition (Hitachi)
• TRH: thyroid-releasing hormone
• TRICKS: time-resolved imaging of contrast kinetics (GE)
• Trig: triggered
• Triple-A syndrome: achalasia-addisonianism-alacrima syndrome
• TRO
  • to rule out
  • triple-rule-out
• Trop: troponin
• Trp: tryptophan
• TrueFISP: true fast imaging with steady state precession
• TRUFI: true fast imaging with steady state precession
• TRUS: transrectal ultrasound
• TS
  • transverse section
  • tricuspid stenosis
  • tuberous sclerosis
• TSA: total shoulder arthroplasty
• tSDH: traumatic subdural haemorrhage
• TSE: turbo spin echo
• TSETF: turbo spin echo turbo factor
• TSF: Taylor spatial frame
• TSH: thyroid-stimulating hormone
• TSR: total shoulder replacement
• TT-TG: tibial tuberosity - trochlear groove sulcus distance
• TTE: transthoracic echocardigraphy
• TTFO
  • told to f**k off
  • to take fluids orally
• TTN: transient tachypnoea of the newborn
• TTP
  • thrombotic thrombocytopenic purpura
  • time to peak
• TurboFLASH: turbo fast low angle shot
• TurboGRASS: turbo gradient recalled acquisition in steady state
• TurboGSE: turbo gradient spin echo
• TurboIR: turbo inversion recovery
• TURBT: transurethral resection of bladder tumour
• TURP: transurethral resection of the prostate
• TV
  • tidal volume
  • transvaginal (ultrasound)
  • tricuspid valve
  • tunica vaginalis
• TVH: total vaginal hysterectomy
• TVR: tricuspid valve replacement
• TWB
  • total weight bearing
  • touch weight bearing
• TWI: T-wave inversion
• TWIST: time-resolved angiography with stochastic trajectories (Siemens)
• TWOC: trial without (urinary) catheter
• Tx
  • transplant
  • treatment
  • tumour cannot be assessed (TNM)
• TXA: tranexamic acid
• Tyr: tyrosine
• TZ: transition zone (prostate)