ISSN:0899-3459    

出版商:OVID    

年代:2003

数据来源: OVID

摘要:

The concepts and clinical potential of interactive magnetic resonance imaging (MRI) in which an examiner manipulates the joint of interestduringMRI, and of interventional sports medicine imaging in which radiological guidance is used for targeted therapy of injuries and masses are described. As illustrated by a series of clinical cases, we believe that with further development, interactive MRI will play an important role in the comprehensive evaluation of patients with shoulder pain or dysfunction as well as other joint derangements. Interventional sports medicine takes advantage of the increasingly sophisticated diagnostic value of MRI and the radiologist's ability to use imaging to guide percutaneous therapy. We review our recent experience treating a wide variety of disorders such as cysts, hematomas, and inflammatory disorders, focusing on techniques utilizing ultrasound and MR guidance.

ISSN:0899-3459    

出版商:OVID    

年代:2003

数据来源: OVID

摘要:

Lesions of the articular cartilage now are recognized as a common, often treatable source of joint disability. Magnetic resonance imaging (MRI) of articular cartilage is a sensitive, noninvasive method for the detection of focal articular cartilage lesions. Advancement in imaging technology now allows for high spatial resolution acquisitions that are able to identify most cartilage lesions, and these acquisitions can be incorporated into everyday clinical imaging protocols. Thus, screening for cartilage abnormalities can be accomplished, along with routine evaluation for ligament and meniscal abnormalities. Familiarity with the appearances of normal cartilage and the full spectrum of cartilage lesions will aid in specific diagnoses. Grading and sizing of cartilage lesions and any underlying bony abnormalities on MRI can help the surgeon in treatment planning; however, some significant cartilage lesions can be difficult to identify and grade by MRI.

ISSN:0899-3459    

出版商:OVID    

年代:2003

数据来源: OVID

摘要:

Normal hip disorders do not account for a large proportion of exercise-related injuries, but they can pose a clinical dilemma because symptoms tend to be nonspecific. Conventional radiographs may demonstrate some causes of hip pain, such as stress fractures and degenerative joint disease. Magnetic resonance imaging (MRI) of the hip has proven valuable in the diagnosis of radiographically occult osseous abnormalities and periarticular soft-tissue disorders such as stress fractures, avulsion injuries, musculotendinous abnormalities, and bursitis. Conventional MRI has been less useful in the evaluation of intra-articular lesions, including acetabular labral tears, intra-articular loose bodies, and cartilage lesions. Visualization of intra-articular structures and their abnormalities can be improved by injection of diluted gadolinium, which distends the capsule and leaks into labral tears. This article focuses on the use of conventional radiography and MRI in recreational and professional athletes with painful hip joints. Where possible, MRI is compared with other diagnostic modalities such as bone scan and computed tomography.

ISSN:0899-3459    

出版商:OVID    

年代:2003

数据来源: OVID

摘要:

Knee trauma often produces predictable groupings of ligamentous and meniscal injuries. Structures that perform related kinematic functions are damaged by the same traumatic mechanisms. When one supporting structure is disrupted, synergistic structures are jeopardized. Locations of meniscal tear, capsuloligamentous sprain, and osseous injury all provide clues about the mechanism of injury. By understanding the most common patterns of knee injury, a biomechanical approach can be used in the interpretation of magnetic resonance images. The identification of abnormality in one structure should lead to a directed search for subtle abnormalities involving anatomically or functionally related structures, thereby improving diagnostic confidence.

ISSN:0899-3459    

出版商:OVID    

年代:2003

数据来源: OVID

摘要:

Basic sports-related injuries of the ankle include ligament tear, tendon degeneration and tear, bone bruise, fracture, impingement, osteochondral defect, and plantar fasciitis. This article discusses the magnetic resonance imaging appearance of these injuries.

ISSN:0899-3459    

出版商:OVID    

年代:2003

数据来源: OVID

摘要:

Children and adolescents increasingly are participating in competitive sports, and there has been a corresponding rise in the incidence of sports-related injuries in this group. Many sports injuries follow the same patterns as are seen in adults, but the developing musculoskeletal system is uniquely susceptible to other types of injury. This review describes anatomic and developmental aspects that result in increased susceptibility to injury and the magnetic resonance imaging characteristics of immature cartilage, marrow, and menisci. Injuries that are usually or exclusively encountered in children and adolescents are emphasized.

ISSN:0899-3459    

出版商:OVID    

年代:2003

数据来源: OVID

摘要:

Magnetic resonance imaging (MRI) is increasingly being used to evaluate muscle injuries because of its unparalleled anatomic resolution and high sensitivity in detecting acute and chronic soft-tissue abnormalities. These features allow detection of characteristic injury patterns that lead to accurate diagnoses and grading of severity. The precise assessment of muscle injuries with MRI plays an important role in determining the treatment plan and prognosis of injured athletes. The article begins with a review of the anatomy and MRI characteristics of normal muscle. The general mechanisms of muscle injury and associated MRI findings are discussed, with emphasis on the most common injuries in both the upper and lower extremities. Several mimics of muscle injury are briefly outlined.

ISSN:0899-3459    

出版商:OVID    

年代:2003

数据来源: OVID