Magic angle effect in MR imaging of ankle tendons: Influence of foot positioning on prevalence and site in asymptomatic subjects and cadaveric tendons

European Radiology

Volumn 16, Issue 10, 2006, Pages 2197-2206

  Mengiardi, Bernard ^a   Pfirrmann, Christian W A ^a   Schöttle, Philip B ^a   Bode, Beata ^b   Hodler, Juerg ^a   Vienne, Patrick ^a   Zanetti, Marco ^a  

^a ORTHOPEDIC UNIVERSITY HOSPITAL BALGRIST   (Switzerland)

^b UNIVERSITY HOSPITAL ZURICH   (Switzerland)

Author keywords

Ankle; MR imaging; Tendon

Indexed keywords

ADULT; AGED; ANKLE; ARTICLE; BODY POSTURE; CADAVER; CONTROLLED STUDY; CORRELATION ANALYSIS; FEMALE; HUMAN; HUMAN EXPERIMENT; HUMAN TISSUE; LEG MUSCLE; MALE; NORMAL HUMAN; NUCLEAR MAGNETIC RESONANCE IMAGING; PREVALENCE; PRIORITY JOURNAL; PROSPECTIVE STUDY; SUPINE POSITION; TENDON; VOLUNTEER;

ADULT; AGED; ANKLE; CADAVER; FEMALE; HUMANS; MAGNETIC RESONANCE IMAGING; MALE; MIDDLE AGED; POSTURE; PROSPECTIVE STUDIES; TENDONS;

EID: 33748467383     PISSN: 09387994     EISSN: None     Source Type: Journal    
DOI: 10.1007/s00330-006-0164-y     Document Type: Article

References (18)

1. Fullerton GD, Cameron IL, Ord VA (1985) Orientation of tendons in the magnetic field and its effect on T2 relaxation times. Radiology 155(2):433-435
2. Berendsen H (1962) Nuclear magnetic resonance study of collagen hydration. J Chem Phys 36:3297-3305
3. Erickson SJ, Prost RW, Timins ME (1993) The "magic angle" effect: Background physics and clinical relevance. Radiology 188(1):23-25
4. Peh WC, Chan JH (1998) The magic angle phenomenon in tendons: Effect of varying the MR echo time. Br J Radiol 71(841):31-36
5. Timins ME, Erickson SJ, Estkowski LD, Carrera GF, Komorowski RA (1995) Increased signal in the normal supraspinatus tendon on MR imaging: diagnostic pitfall caused by the magic-angle effect. AJR 165(1):109-114
6. Kjellin I, Ho CP, Cervilla V, Haghighi P, Kerr R, Vangness CT et al (1991) Alterations in the supraspinatus tendon at MR imaging: correlation with histopathologic findings in cadavers. Radiology 181(3):837-841
7. Schweitzer ME, Caccese R, Karasick D, Wapner KL, Mitchell DG (1993) Posterior tibial tendon tears: Utility of secondary signs for MR imaging diagnosis. Radiology 188(3):655-659
8. Klein MA (1993) Reformatted three-dimensional Fourier transform gradient-recalled echo MR imaging of the ankle: Spectrum of normal and abnormal findings. AJR 161(4):831-836
9. Noto AM, Cheung Y, Rosenberg ZS, Norman A, Leeds NE (1989) MR imaging of the ankle: Normal variants. Radiology 170(1 Pt 1):121-124
10. Cheung Y, Rosenberg ZS, Magee T, Chinitz L (1992) Normal anatomy and pathologic conditions of ankle tendons: Current imaging techniques. Radiographics 12(3):429-444
11. Link SC, Erickson SJ, Timins ME (1993) MR imaging of the ankle and foot: normal structures and anatomic variants that may simulate disease. AJR 161(3):607-612
12. Erickson SJ, Cox IH, Hyde JS, Carrera GF, Strandt JA, Estkowski LD (1991) Effect of tendon orientation on MR imaging signal intensity: A manifestation of the "magic angle" phenomenon. Radiology 181(2):389-392
13. Rosenberg ZS, Beltran J, Bencardino JT (2000) From the RSNA Refresher Courses. Radiological Society of North America. MR imaging of the ankle and foot. Radiographics 20 Spec NoS153-179
14. Khoury NJ, el-Khoury GY, Saltzman CL, Brandser EA (1996) MR imaging of posterior tibial tendon dysfunction. AJR 167(3):675-682
15. Rosenberg ZS, Cheung Y, Jahss MH, Noto AM, Norman A, Leeds NE (1988) Rupture of posterior tibial tendon: CT and MR imaging with surgical correlation. Radiology 169(1):229-235
16. Delfaut EM, Demondion X, Bieganski A, Cotten H, Mestdagh H, Cotten A (2003) The fibrocartilaginous sesamoid: A cause of size and signal variation in the normal distal posterior tibial tendon. Eur Radiol 13(12):2642-2649
17. Rule J, Yao L, Seeger LL (1993) Spring ligament of the ankle: Normal MR anatomy. AJR 161(6):1241-1244
18. Kiter E (2005) The fibrocartilage sesamoid. Eur Radiol 15(2):397-398; author reply 399