The time-dependent saturation transfer (TDST) method was applied at 0.1 T in order to evaluate the magnetization transfer contrast (MTC) of the patellar cartilage in vivo. Nine knees were examined. The MTC image of the knee is also demonstrated. The MTC of 63% of the patellar cartilage was attained. Magnetization transfer MR imaging may be of additional help in the evaluation of cartilage disorders at low-field MR imaging.
BottomleyP. A.EdelsteinW. A.: Power deposition in whole body NMR imaging. Med. Phys.8 (1981), 510.
2.
ChandnaniV. P.HoC.ChuP.TrudellD.ResnickD.: Knee hyaline cartilage evaluated with MR imaging. A cadaveric study involving multiple imaging sequences and intraarticular injection of gadolinium and saline solution. Radiology178 (1991), 557.
3.
ConwayW. F.HayesC. W.LoughranT.: Cross-sectional imaging of the patellofemoral joint and surrounding structures. Radiographics11 (1991), 195.
4.
EhrlichM. G.ArmstrongA. L.TreadwellB. V.MankinH. J.: The role of proteases in the pathogenesis of osteoarthritis. J. Rheumatol.14 (Suppl. 14) (1987), 30.
5.
EngJ.CecklerT. L.BalabanR. S.: Quantitative 1H magnetization transfer imaging in vivo. Magn. Res. Med.17 (1991), 304.
6.
FoustR. J.TanttuJ. I.SepponenR. E.KinnunenE.: Magnetization transfer contrast (MTC) in multiple sclerosis at 0.1 T. Society of Magnetic Resonance in Medicine, 9th Annual Scientific Meeting and Exhibition. Abstracts, p. 626. New York 1991.
7.
HayesC. W.SawyerR. W.ConwayW. F.: Patellar cartilage lesions. In vitro detection and staging with MR imaging and pathologic correlation. Radiology176 (1990), 479.
8.
HowellD. S.: Pathogenesis of osteoarthritis. Am. J. Med.80 (Suppl. 4B) (1986), 24.
9.
KimD. K.CecklerT.HascallV. C.CalabroA.BalabanR. S.: Analysis of water macromolecule proton magnetization transfer in articular cartilage. Society of Magnetic Resonance in Medicine, 10th Annual Scientific Meeting and Exhibition. Abstract, p. 65. San Francisco 1991.
10.
KomuM.: Analysis of longitudinal relaxation rate constants from magnetization transfer MR images of human tissues at 0.1 T. Magn. Reson. Imaging10 (1992), 35.
11.
KönigH.SauterR.DeimlingM.VogtM.: Cartilage disorders. Comparison of spin-echo CHESS, and FLASH sequence MR images. Radiology164 (1987), 753.
12.
LynchT. D. P.CruesJ. V.IIIMorganF. W.SheehanW. E.HarterL. P.RyuR.: Bone abnormalities of the knee. Prevalence and significance at MR imaging. Radiology171 (1989), 761.
13.
MinkJ. H.DeutschA. L.: Occult cartilage and bone injuries of the knee. Detection, classification, and assessment with MR imaging. Radiology170 (1989), 823.
14.
ReicherM. A.BassetL. W.GoldR. H.: High resolution magnetic resonance imaging of the knee joint. Pathologic correlations. AJR145 (1985), 903.
15.
ReicherM. A.RauschningW.GoldR. H.BassetL. W.LufkinR. V.GlenW.Jr: High-resolution magnetic resonance imaging of the knee joint. Normal anatomy. AJR145 (1985), 895.
16.
WatanabeA. T.CarterB. C.TeitelbaumG. P.SeegerL. L.BradleyW. G.Jr: Normal variations in MR imaging of the knee. Appearance and frequency. AJR153 (1989), 341.
17.
WolffS. D.BalabanR. S.: Magnetization transfer contrast (MTC) and tissue water proton relaxation in vivo. Magn. Res. Med.10 (1989), 135.
18.
WolffS. D.ChesnickS.FrankJ. A.LimK. O.BalabanR. S.: Magnetization transfer contrast. MR imaging of the knee. Radiology179 (1991), 623.
19.
WolffS. D.EngJ.BalabanR. S.: Magnetization transfer contrast. Method to improve contrast in gradient-recalled echo images. Radiology179 (1991), 133.
20.
YulishB. S.LiebermanJ. M.NewmanA. J.BryanP. J.MulopulosG. P.ModicM. T.: Juvenile rheumatoid arthritis. Assessment with MR imaging. Radiology165 (1987), 149.
21.
YulishB. S.LiebermanJ. M.StrandjordS. E.BryanP. J.MulopulosG. P.ModicM. T.: Hemophilic arthropathy. Assessment with MR imaging. Radiology164 (1987), 759.
22.
YulishB. S.MontanezJ.GoodfellowD. B.BryanP. J.MulopulosG. P.ModicM. T.: Chondromalacia patellae. Assessment with MR imaging. Radiology167 (1987), 763.
