title: Popliteal artery entrapment syndrome: aberrant origin of gastrocnemius muscle shown by 3D CT.
abstract: OBJECTIVE
  The purpose of this report is to evaluate the usefulness of 3D CT in the diagnosis of popliteal artery entrapment (PAE) syndrome.
  
  
  METHODS
  Three patients (three men, 22-70 years old) with suspected PAE syndrome were examined using helical CT. 3D images were reconstructed to evaluate the relationship between the popliteal artery and the gastrocnemius muscle. 3D arteriograms were simultaneously reconstructed.
  
  
  RESULTS
  One patient had unilateral type 3 PAE syndrome. Bilateral PAE syndrome was seen in the other two cases: One had bilateral type 2 anomalies and the other had type 3 on the left and type 2 on the right. In all three cases the anomalous origin of the medial head of the gastrocnemius muscle and its relationship to popliteal artery were clearly visualized by 3D CT. In addition, CT arteriography could detect occlusion, deviation, or stenosis of the popliteal arteries.
  
  
  CONCLUSIONS
  3D CT is useful in the diagnosis and management of PAE syndrome.
authors.affiliation: Department of Radiology, National Cardiovascular Center, Osaka, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Takase
authors.forename: S
authors.initials: S
authors.lastname: Imakita
authors.forename: S
authors.initials: S
authors.lastname: Kuribayashi
authors.forename: Y
authors.initials: Y
authors.lastname: Onishi
authors.forename: M
authors.initials: M
authors.lastname: Takamiya
mesh_terms: D000328:Adult; D000368:Aged; D015901:Angiography, Digital Subtraction; D002908:Chronic Disease; D003251:Constriction, Pathologic / Q000000981:diagnostic imaging / Q000209:etiology; D006801:Humans; D007383:Intermittent Claudication / Q000000981:diagnostic imaging / Q000209:etiology; D008297:Male; D008875:Middle Aged; D018482:Muscle, Skeletal / Q000002:abnormalities* / Q000000981:diagnostic imaging; D016491:Peripheral Vascular Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D011150:Popliteal Artery / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000379:methods*