Medical abbreviations and acronyms (S) | Radiology Reference Article | Radiopaedia.org (2024)

S

• sacral

• second (SI unit of time)

• sulfur

S₁-S₄: first, second, third, fourth heart sounds

S100

SA

• sem*n analysis

• sinoatrial

SAA: serum amyloid A

SAAG: serum ascites albumin gradient

SAB:subacromial bursa

SABA: short-acting beta-2 agonist (e.g. albuterol)

SABR: stereotactic ablative radiotherapy

SACT: systemic anti-cancer therapy

SAD

• seasonal affective disorder

• short axis diameter

SAE: sepsis-associated encephalopathy

Sag: sagittal

SAH:subarachnoid hemorrhage

SALT: speech and language therapy

SAM: segmental arterial mediolysis

SAN: sinoatrial node

SAP: superior articular process (of vertebra)

S&S: signs and symptoms

SAPHO:synovitis, acne, pustulosis, hyperostosis, osteitis

SAR: specific absorption rate

SARS: severe acute respiratory syndrome

SARS-CoV-1: severe acute respiratory syndrome-coronavirus-1

SARS-CoV-2:severe acute respiratory syndrome-coronavirus-2

SAVR: surgical aortic valve replacement

SB

• small bowel

• spectral broadening

• stillbirth

Sb: antimony (Latin: stibium)

SBBOS: small bowel bacterial overgrowth syndrome

SBC:simple bone cyst

SBE:subacute bacterial endocarditis

SBF: small bowel follow through

SBFT: small bowel follow through

SBO:small bowel obstruction

SBP

• spontaneous bacterial peritonitis

• systolic blood pressure

SBPL:spontaneous bacterial pleuritis

SBRT: stereotactic body radiotherapy

SBS: seat belt sign

SC

• spinal cord

• subcutaneous

Sc: scandium

SCA

• sickle cell anemia

• subclavian artery

• superior cerebellar artery

SCAD: spontaneous coronary artery dissection

SCC:

• semicircular canal

• spinal cord compression

• squamous cell cancer

• squamous cell carcinoma

SCCD:semicircular canal dehiscence

SCCP: small cell carcinoma of the prostate

SCD

• sickle cell disease

• sudden cardiac death

• superior canal dehiscence

SCDO:spondylocostal dysostosis

SCI: spinal cord injury

SCIWORA:spinal cord injury without radiographic abnormality

SCJ:sternoclavicular joint

SCLC:small cell lung cancer

SCM:sternocleidomastoid

SCoR: Society and College of Radiographers (UK)

SCOS: small cell osteosarcoma

SCORIF: stimulated cycle oocyte retrieval in [office]fertilisation

scRNA-seq: single-cell RNA sequencing

SCS: spinal cord stimulator

SCT: stem cell transplant

SCV:subclavian vein

SD

• septal deviation

  See Also

  Medical abbreviations and acronyms (S) | Radiology Reference Article | Radiopaedia.org

• stable disease (malignant disease/RECIST)

• standard deviation

• standard drinks (alcohol)

SDASH:shunt-dependency in symptomatic aneurysmal subarachnoid hemorrhage score

SDD:surfactant deficiency disorder

SDEC: same-day emergency care

SDH:subdural hemorrhage

SE

• side-effect

• spin echo

• status epilepticus

Se: selenium

Sec: second

SEE: septic-embolic encephalitis

SEEG:stereoelectroencephalography

SeHCAT:selenium hom*ocholic acid taurine

SEMAC: slice-encoding for metal artifact correction (Siemens)

SEMS: self-expandable metallic stent

SEP: superior end-plate (vertebral body)

Ser: serine

sestamibi:sesta-methoxyisobutylisonitrile

SFA:superficial femoral artery

SFH: symphyseal fundal height

SFLC: serum free light chains

SFSS: small for size syndrome (liver graft)

SFV:superficial femoral vein(femoral vein preferred)

SGA​

• small for gestational age

• supraglottic airway

SGC: Swan-Ganz catheter

SGHL:superior glenohumeral ligament

SH

• Salter-Harris

• social history

SHG:sonohysterogram

SHO: senior house officer

SHORT syndrome:short stature,hyperextensibility and/or inguinal hernia,ocular depression,Rieger anomaly,teething delay

SHx: social history

SI

• sacroiliac

• secondary infertility

• serious incident

• sexual intercourse

• signal intensity

• situs inversus

• small intestine

• Systeme Internationale (d'unites) (SI units)

Si: silicon

SIADH: syndrome of inappropriate antidiuretic hormone secretion

SIBO: small intestinal bacterial overgrowth

SICRET:small infarctions of cochlear, retinal and encephalic tissue = Susac syndrome

SIDM: steroid-induced diabetes mellitus

SIDS: sudden infant death syndrome

SIJ:sacroiliac joint

SIM: simulation

SIMV: synchronised intermittent mechanical ventilation

SINS:spinal instability neoplastic score

SIRT: selective internal radiotherapy

SIRVA: shoulder injury related to vaccine administration

SIT: situs inversus totalis

SJS:Stevens-Johnson syndrome

SKA: simultaneous pancreas and kidney transplant

SkM: skeletal muscle

SLAC:scapholunate advanced collapse

SLAP:superior labral anterior-posterior(tear)

SLE:

• Saint Louis encephalitis

• systemic lupus erythematosus

SLEC: spinal longitudinal epidural collection

SLG:sublingual gland

SLGA:superior lateral genicular artery

SLGB: single lumen gastric bypass

SLIG: single live intrauterine gestation

SLIP: single live intrauterine pregnancy

SLIUG: single live intrauterine gestation

SLIUP: single live intrauterine pregnancy

SLJ:Sinding-Larsen-Johansson disease

SLL:scapholunate ligament

SLN: sentinel lymph node

SLNBx: sentinel lymph node biopsy

SLT:speech and language therapy

SLYM: subarachnoid lymphatic-like membrane

SM

• smooth muscle

• submucosa

SMA

• superior mesenteric artery

• smooth muscle actin (immunohistochemistry)

• supplementary motor area

SMART

• specific, measurable, achievable, relevant, timely

• stroke-like migraine attacks after radiation therapy syndrome

SMAS: superficial musculoaponeurotic system

SMEI:severe myoclonic epilepsy of infancy

SMG:submandibular gland

SMGA:superior medial genicular artery

SMR: stable metabolic response

SMS: sonographic Murphy sign

SMV

• submentovertical

• superior mesenteric vein

SN: sentinel node

Sn

• sensitivity

• tin (Latin: stannum)

SNAC:scaphoid nonunion advanced collapse

SNBx: sentinel node biopsy

SNHL:sensorineural hearing loss

SNiP:single nucleotide polymorphism

SNOH:surgical neck of humerus

SNP: single nucleotide polymorphism

SNpc: substantia nigra pars compacta

SNR:signal-to-noise ratio

SNRI: serotonin and norepinephrine reuptake inhibitors

SNS: sympathetic nervous system

SNT: soft, non-tender

SOA: swelling of ankles

SOAP:subjective,objective,assessment, plan (medical notes)

SOB: shortness of breath

SOBAR: shortness of breath at rest

SOBOE: shortness of breath on exertion

SOD: septo-optic dysplasia

SOF:superior orbital fissure

SOFS:superior orbital fissure syndrome

SOL: space-occupying lesion

SONK: spontaneous osteonecrosis of the knee

SOP: standard operating procedure

SoR: Society of Radiographers (UK)

SOS

• satisfaction of search (error)

• sinusoidal obstruction syndrome

SOV:superior ophthalmic vein

SOVA: sinus of Valsalva aneurysm

SP

• sacral promontory

• spinous process

Sp

• species

• specificity

SPTTL:superficial posterior tibiotalar ligament

S/P: status post (i.e. post-procedure/surgery)

SPACE

• sampling perfection with application optimized contrasts using different flip angle evolution (Siemens)

• spatial and chemical-shift encoded excitation

SpaceOAR: space organ at risk

SPAIR: spectral attenuated inversion recovery

SPC: suprapubic catheter

SPECIAL: spectral inversion at lipid

SPECT:single photon emission computed tomography

SPET:single photon emission computed tomography

SPGR:spoiled gradient recalled

SPIR: spectral presaturation with inversion recovery

SPMS:secondary progressive multiple sclerosis

SPN:solitary pulmonary nodule

Spp: species (plural)

SQ

• status quo

• subcutaneous

SR: sinus rhythm

Sr: strontium

SREAT: steroid responsive encephalopathy associated with autoimmune thyroiditis

SRM

• small renal mass

• solitary renal mass

SRO: sagittal ramus osteotomy

SROM:spontaneous rupture of membranes

SRS

• Silver-Russell syndrome

• somatostatin receptor scintigraphy

• stereotactic radiosurgery

SS

• signs and symptoms

• situs solitus

• Sjögren syndrome

• straight sinus

• supraspinatus muscle

• systemic sclerosis

SSCC: superior semicircular canal

SSD

• solid state drive

• source skin distance

SSFP:steady state free precession

SSG: split skin graft

SSI: surgical site infection

ssp: subspecies

SSPE: subacute sclerosing panencephalitis

SSR: spontaneous splenic rupture

SSRF: surgical stabilization of rib fractures

SSRI:selective serotonin reuptake inhibitors

SSS

• sick sinus syndrome

• superior sagittal sinus

SST: short Synacthen test

SSTR: somasostatin receptor

ST

• speech therapy

• ST segment on ECG

STA:superficial temporal artery

STAMCA:superficial temporal artery to middle cerebral artery anastomosis

Staph: Staphylococcus spp.

stat: immediately (Latin: statim)

STD

• sexually transmitted disease

• ST depression

STE: ST elevation

STEMI:ST segment elevation myocardial infarct

STI:

• sexually transmitted infection

• soft tissue injury

STIR

• short tau inversion recovery

• short TI inversion recovery

STJ

• sinotubular junction (of the ascending aorta)

• subtalar joint

STOP: selective tubal occlusive procedure

STP: standard temperature and pressure

Strep: Streptococcus spp.

STT

• scaphotrapeziotrapezoid joint

• Schirmer tear test

• serial thrombin time

• straight to test

STUMP: stromal tumor of uncertain malignant potential

SUA:single umbilical artery

Sub: subiculum

subcut: subcutaneous

subsp: subspecies

SUDEP: sudden unexplained death in epilepsy

SUDI: sudden unexpected death in infancy

SUI: serious untoward incident

SUIB: sitting up in bed

SUL:standardized uptake value corrected for lean body mass

SUO: syncope of unknown origin

supraclav: supraclavicular

SUV: standardized uptake value

SV: stroke volume

Sv: sievert

SVC:superior vena cava

SVD: spontaneous vagin*l delivery

SVI: stroke volume index

SVR: sustained virologic response

SVT

• subdural venous thrombosis

• superficial venous thrombosis

• supraventricular tachycardia

SWAN: syndrome without a name

SWI:susceptibility-weighted imaging

SWOT analysis: strengths, weaknesses, opportunities, threats

SWS:Sturge-Weber syndrome

SWU: sepsis workup

Sx: signs

SXR: skull x-ray

Sy: symptoms

Symp: symptoms

Symph: symphysis pubis

Sys: systems review