Spatial variation in cartilage T2 of the knee

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Spatial variation in cartilage T2 of the knee.

Technical limitations imposed by resolution and B1 homogeneity have thus far limited quantitative in vivo T2 mapping of cartilage to the patella. The purpose of this study is to develop T2 mapping of the femoral/tibial joint and assess regional variability of cartilage T2 in the knee. Quantitative in vivo T2 mapping of the knee was performed on 15 asymptomatic adults (age, 22-44) using a 3T MR ...

متن کامل

Spatial variation of T2 in human articular cartilage.

PURPOSE To determine the spatial variation of in vivo cartilage T2 in young asymptomatic adults. MATERIALS AND METHODS Quantitative T2 maps of seven asymptomatic young male adults and one male volunteer with a history of previous intraarticular chondroid fragments were calculated by using a multiecho, spin-echo magnetic resonance imaging sequence at 3.0 T. The T2 maps were bilinearly interpol...

متن کامل

Spatial variation in T1 of healthy human articular cartilage of the knee joint.

The longitudinal relaxation time T(1) of native cartilage is frequently assumed to be constant. To redress this, the spatial variation of T(1) in unenhanced healthy human knee cartilage in different compartments and cartilage layers was investigated. Knees of 25 volunteers were examined on a 1.5 T MRI system. A three-dimensional gradient-echo sequence with a variable flip angle, in combination ...

متن کامل

Multi-component T2* relaxation of knee cartilage under UTE acquisitions

INTRODUCTION This work reports observations of T2* relaxation in human knee cartilage explants under ultrashort echo time (UTE) acquisitions in vitro. The objective of this study was to determine the number and distribution of T2* components. We hypothesize that the three major constituents of articular cartilage extracellular matrix (water, collagen, and proteoglycan) contribute to the existen...

متن کامل

Influence of knee positions on T2, T*2, and dGEMRIC mapping in porcine knee cartilage.

We examined the influence of flexed knee positions on cartilage MR assessments. Sagittal T(2), T*(2), and delayed gadolinium-enhanced MRI of cartilage (dGEMRIC) maps of the femoral cartilage were obtained in eight 6-month-old porcine femorotibial joints in the extended knee position (position A: flexion 0 degrees and femoral shaft in parallel with the amplitude of static field), flexed knee pos...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Magnetic Resonance Imaging

سال: 2001

ISSN: 1053-1807,1522-2586

DOI: 10.1002/jmri.1150