Search Results
Results 551 - 600 of 912
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Jordan L K LK - - 2000
OBJECTIVE: To demonstrate the MR imaging findings of anterolateral impingement (ALI) of the ankle. DESIGN AND PATIENTS: Nine patients with a history of ankle inversion injury and chronic lateral ankle pain were imaged with MR imaging, and the findings correlated with the results of arthroscopy. Three additional patients with clinically ...
Kotani H - - 2000
In this study antemortem evaluation of equine flexor tendons--the superficial digital flexor tendon and the deep digital flexor tendon--using magnetic resonance (MR) images was performed. Postmortem flexor tendons were used to prepare the slice positions, coil and body positions for MR imaging. It was possible by this method to take ...
Kartus J - - 2000
This study compared the reliability (interchangeability) of magnetic resonance imaging (MRI) and ultrasonography (US) examinations of the patellar tendon after using central third patellar tendon autografts during anterior cruciate ligament reconstruction. Nineteen consecutive patients (7 women, 12 men) underwent bilateral MRI and US of the patellar tendons 27 (24-29) months ...
Potter H G - - 2000
The inherent obliquity of the elbow produces a challenge to the radiologist. In the treatment of elbow trauma, comprehensive evaluation includes detection of bone, cartilage, ligament, and tendon injury. In most cases, plain radiographs remain the initial imaging mainstay for evaluation of the elbow, followed by properly performed magnetic resonance ...
Mulligan M E - - 2000
This article reviews the most common foot and ankle injuries that the general radiologist and general orthopedic surgeon are likely to encounter. Fractures and dislocations seen in children and adults are included as well as soft tissue injuries. Ankle fracture classification schemes are discussed briefly. Techniques for advanced imaging with ...
Hepple S S Avon Orthopaedic Centre, Southmead Hospital, Bristol, United - - 1999
Osteochondral lesions of the talus present a numerically small but therapeutically significant problem to the foot surgeon. The diagnosis and investigation of such lesions have been greatly enhanced by modern high resolution magnetic resonance imaging capabilities, which have provided far greater detail of the pathological anatomy. We have reviewed our ...
Pfirrmann C W - - 1999
PURPOSE: To assess diagnostic accuracy in the detection and grading of subscapularis tendon lesions at magnetic resonance (MR) arthrography. MATERIALS AND METHODS: MR arthrograms in 50 consecutive patients (29 with normal subscapularis tendons, 11 with a lesion in the cranial quarter, seven with a major tear but not complete detachment, ...
McNally E G - - 1999
OBJECTIVE: To define the imaging appearances in three cases of posteromedial subtalar coalition. DESIGN: Three patients who presented with hindfoot pain were found to have non-osseous coalition involving the posteromedial hindfoot. This entity is distinct from conventional middle facet coalition as the sustentaculum is uninvolved. RESULTS: Plain radiographs, available in ...
Seo Y - - 1999
1H double-quantum-filtered magnetic resonance imaging (DQF MRI) was applied to monitor the healing process of the Achilles tendons in rabbits after tenotomy. DQF MRI provides a new contrast, which is based on the non-zero average of the dipolar interaction caused by anisotropic motion of water molecules, determined mainly by their ...
Blacksin M F MF Department of Radiology, University of Medicine & Dentistry of New Jersey, Newark, - - 1999
Filariasis is a world health problem that is frequently seen in tropical and subtropical countries. In endemic areas, the clinical spectrum of extremity swelling, lymphangitis, or elephantiasis is usually recognized as filariasis. In the United States, diagnosis of the disease may be more difficult because of lack of familiarity with ...
Bredella M A - - 1999
OBJECTIVE: The purpose of this paper was to use MR imaging to determine whether a relationship exists between lateral epicondylitis and abnormalities of the lateral ulnar collateral ligament. SUBJECTS AND METHODS: The study group comprised 35 consecutive patients who were referred for MR imaging to rule out lateral epicondylitis. On ...
Ferrara M A - - 1999
The objective of this study was to evaluate plain radiographs, US and MRI in detection of occult lesions of the elbow in asymptomatic handball players. Comparative plain films of both elbows were obtained in an anteroposterior and lateral projection. A bilateral comparative ultrasound examination was performed with measurement of the ...
Fiorella D - - 1999
OBJECTIVE: To describe the MR imaging features of the posterior intermalleolar ligament (IML) in patients with posterior impingement syndrome (PIS) of the ankle. DESIGN AND PATIENTS: Three patients (one male and two females, 13-25 years of age) are presented. Each patient presented clinically with symptoms of PIS of the ankle. ...
Tol J L - - 1999
This case report describes a patient with acute retrocalcaneal bursitis, which developed after MRI examination of the ankle. The sagittal T2*-weighted gradient echo sequence revealed an extensive susceptibility artifact in the area surrounding the Achilles tendon near its insertion at the os calcis. This artifact was caused by postsurgical metallic ...
Hauger O - - 1999
OBJECTIVE: This article describes the appearance of the anterolateral recess of the posttraumatic ankle on CT arthrography and clearly shows the benefit of this technique in the diagnosis of soft-tissue impingement. MATERIALS AND METHODS: The study was carried out on 44 patients examined by CT arthrography and arthroscopy for chronic, ...
Stindel E - - 1999
The purpose of this work is to study the architecture of the rearfoot using in vivo MR image data. Each data set used in this study is made of sixty sagittal slices of the foot acquired in a 1.5-T commercial GE MR system. We use the live-wire method to delineate ...
Sasaki M - - 1999
The domestic horse (Equus caballus) have the large symmetrical guttural pouches (the auditory tube diverticulum) formed by saccate bulge of the auditory tube. In this study, CT examination was carried out in the head of Przewalski's horse (Equus przewalskii), the only true wild horse living at present. As results of ...
Feighan J - - 1999
The role of magnetic resonance imaging in the evaluation of the patient with posterior tibial tendon dysfunction is discussed. Considerations for the proper positioning of the patient and optimal technique to obtain appropriate images of the posterior tibial tendon and associated joint abnormalities are highlighted. Cases are presented to show ...
Bodner G - - 1999
PURPOSE: The objective of this study is to assess accuracy of ultrasound (US) and MRI to diagnose completely disrupted annular pulley ligaments (APL) of the flexor tendons of the fingers. PATIENTS AND METHODS: In a prospective study 32 patients (all males 18-42 years, mean age 25 years) with clinically suspected ...
Yu J S - - 1999
OBJECTIVE: To determine the postoperative appearance of the plantar fascia on MR imaging after a fasciotomy has been performed, and to compare the postsurgical appearance of the fascia after an open and endoscopic procedure. DESIGN AND PATIENTS: Fifteen asymptomatic volunteers (12 women, 3 men; age range 22-49 years, mean age ...
Tuthill T A - - 1999
A texture discriminant based on spatial frequencies is proposed for characterizing B-scans of Achilles' tendon. The anisotropic echo texture of normal tendon has an ellipsoidal spatial spectrum that can be quantified by the ratio of the major-to-minor axis and by the direction of the major axis. Applying a moving window ...
Skaf A Y - - 1999
PURPOSE: To use radiography and magnetic resonance (MR) imaging after contrast material opacification of the bursae in cadaveric specimens to demonstrate the anatomy of the bicipitoradial bursa and to report MR imaging findings in patients with bicipitoradial bursitis. MATERIALS AND METHODS: Bicipitoradial bursa in eight cadaveric elbows were injected with ...
Kofler J - - 1999
The stifle region of 18 healthy cattle (14 cows, four bull calves) and the stifles of five bovine cadavers were examined using 7.5 MHz linear or convex and 5 MHz sector transducers. The normal ultrasonographic appearance of soft tissues and bony structures was studied.The homogeneously echogenic patellar and collateral ligaments, ...
Fessell D P - - 1999
Sonography of the foot and ankle offers many advantages. Currently, sonographic evaluation rivals or exceeds MR imaging for evaluation of tendons, joint and bursal pathology, and specific soft tissue pathology. The advantages of sonographic evaluation provide a strong impetus for applying this modality to imaging of foot and ankle pathology. ...
Jacobson J A - - 1999
Sonography is currently being applied to many areas of the musculoskeletal system. Although some areas are in the experimental stage, there exist several indications in which sonography can produce results at least equal to what is possible with MR imaging. Examples include evaluation for shoulder and ankle tendon abnormalities; soft ...
Weishaupt D - - 1999
RATIONALE AND OBJECTIVES: The purpose of this study was to assess the diagnostic value of MR arthrography in detecting a lesion of the common insertion of the coracohumeral and the superior glenohumeral ligaments and the superior border of the subscapularis tendon (pulley lesion), which predisposes to biceps tendon subluxation and ...
Lazarus M L - - 1999
Currently the availability of magnetic resonance imaging has replaced much of the arthrotomography and CT scanning. The increased soft tissue contrast provided by MRI allows its use in assessing tendinous, ligamentous, cartilaginous, and in particular subtle bone marrow changes, which before its inception were never directly imaged. This article covers ...
Denoix J M - - 1999
The ultrasonographic anatomy of the accessory ligament of the superficial digital flexor tendon (AL-SDFT) in the horse is presented. Comparison between anatomical sections of isolated limbs and ultrasound scans of the distal antebrachium in sound horses enabled the authors to establish the normal reference ultrasonographic images of this structure. The ...
Rand T - - 1999
PURPOSE: To investigate the value of MR imaging using a low-field imaging unit (0.2 T) for the evaluation of ligaments and tendons of the ankle. MATERIAL AND METHODS: Twelve ankle specimens were studied using low-field MR imaging (0.2 T). The Achilles tendon, the tibialis posterior tendon, and the lateral collateral ...
Cheung Y Y - - 1999
OBJECTIVE: The flexor digitorum accessorius longus muscle (FDAL), an anomalous muscle about the ankle, has recently been implicated in tarsal tunnel syndrome. The purpose of this study is to document the prevalence of the FDAL, its MR appearance and its relation to the neurovascular bundle in the tarsal tunnel. DESIGN ...
Peduto A J - - 1999
The purpose of this study is to describe the bony and, to our knowledge, previously unreported associated soft-tissue abnormalities seen on MR imaging of dysplasia epiphysealis hemimelica. MR imaging accurately depicted bony and cartilagenous structural abnormalities in multiple planes and revealed previously undescribed secondary changes in menisci, tendons, ligaments, and ...
Thorne J E - - 1999
PURPOSE: To report the occurrence of acquired Brown syndrome and associated magnetic resonance imaging findings in a patient with psoriasis. METHODS: A 42-year-old woman with a history of psoriasis developed pain, double vision, and limited elevation of her left eye in adduction. An orbital magnetic resonance image with gadolinium enhancement ...
Jernberg E T - - 1999
OBJECTIVE: To investigate the role of the posterior tibial tendon in the flat foot deformity of rheumatoid arthritis (RA). METHODS: Eleven patients with hyperpronated feet and 9 without hyperpronation underwent magnetic resonance imaging (MRI) of the feet and ankles. Radial oblique double echo images provided cross sectional views of the ...
Bencardino J - - 1999
MR imaging has become the diagnostic modality of choice for the evaluation of traumatic ligamentous and tendinous injures of the foot and ankle, occult bony trauma, and osteochondral lesions of the talus. This article reviews the current applications of MR imaging for the evaluation of sports-related injuries of the foot ...
Schlegel T F - - 1999
This article discusses the effectiveness of MR imaging in evaluating the injuries of both upper and lower extremities in the professional football player. Topics include bone, joint and soft tissue disorders, and injuries resulting from overuse or trauma of the shoulder, elbow, forearm, and wrist; the pelvis and hip, lower ...
Fritz R C - - 1999
Recent clinical experience has shown MR imaging to provide useful information in detecting, assessing, and characterizing sports-related disorders of the elbow. This article discusses features of MR imaging, including noninvasivness; accurate depiction of structures (muscles, ligaments, and tendons), and presence and extent of bone and soft tissue pathology; and visualization ...
Widmer W R - - 1999
We tested an adaptation of a technique for performing magnetic resonance (MR) imaging of human cadaver limbs in the horse. The forelimbs from a normal horse were collected, frozen, and sealed with a paraffin-polymer combination prior to imaging with either a high- or midfield magnetic resonance scanner. Each forelimb was ...
Gessner Angela J. - - 1999
A fibrous, cartilaginous, or bony (or a combination thereof) connection between two tarsal bones, or tarsal coalition usually involves the calcaneonavicular or talocalcaneal articulations. Foot pain, beginning when an initially fibrous coalition becomes partially or totally osseous and coinciding with trauma or increased stress such as athletic activity, is the ...
Kleiter M - - 1999
An anatomic study of the equine digit using magnetic resonance imaging (MRI) was performed. Seventeen isolated forelimbs and one hindleg of nine warmblood horses were imaged in transverse, sagittal, and dorsal planes with a 1.5 Tesla magnet using T1-, T2- proton density-weighted spin echo sequences as well as T2 gradient ...
Llauger J - - 1998
Approximately 75% of all biopsy-proved soft-tissue masses of the foot and ankle are benign tumors or nontumoral lesions representing a variety of histologic types. In some cases, it may be difficult if not impossible to identify the lesion; however, careful analysis of the magnetic resonance (MR) imaging findings and correlation ...
Drapé J L - - 1998
OBJECTIVE: To assess the MRI findings in cases of closed rupture of the flexor digitorum tendons (FDT). PATIENTS AND DESIGN: Ten patients with a clinical suspicion of rupture of FDT underwent MRI before surgery. None of the patients presented a skin injury. Fingers were imaged using axial T1-weighted SE sequences, ...
Maffulli N - - 1998
In overuse clinical conditions in and around tendons, frank inflammation is infrequent, and is associated mostly with tendon ruptures. Tendinosis implies tendon degeneration without clinical or histological signs of intratendinous inflammation, and is not necessarily symptomatic. Patients undergoing an operation for Achilles tendinopathy show similar areas of degeneration. When the ...
Mota J - - 1998
Injuries of the peroneal tendons include tendinosis, tenosynovitis, tears, and dislocation. These injuries are being detected with greater frequency since the advent of MRI. After a review of the normal MRI anatomy of the peroneal tendons, this article will focus on the MR features of peroneal tendon disorders in the ...
Eastwood J D - - 1998
Three patients with the diagnosis of acute calcific prevertebral tendinitis underwent CT or a combination of CT and MR imaging, which showed previously described findings of calcifications within the tendons of the longus colli muscles. In addition, however, we detected a retropharyngeal effusion in all three patients. The importance of ...
Rosenberg Z S - - 1998
Distinction of normal from disease is one of the principal tenets in magnetic resonance imaging (MRI) interpretation of the foot and ankle. Therefore, familiarity with normal anatomic variants and pitfalls in the foot and ankle is crucial for accurate diagnostic analysis of MR images. This article will focus on outlining ...
Helgason J W - - 1998
Magnetic resonance imaging (MRI) arthrography of the ankle is a useful diagnostic modality in the detection and staging of lateral ankle ligament tears, particularly in patients who fail to respond to conservative management. MRI arthrography also may be helpful in determining the extent of ligamentous injury in professional athletes, for ...
Wang Y C - - 1998
A 39-year-old woman suffered from swelling and tenderness of the right leg for 31 years. Imaging studies showed a large soft tissue lesion on the right side extending from the proximal portion of the thigh to the ankle. She underwent several operations due to the leg mass and associated equinovarus ...
Lee S H - - 1998
PURPOSE: Our purpose was to define the normal MR arthrographic anatomy of ankle ligaments. METHOD: Prior to injection of intraarticular gadolinium in cadaveric ankle joints, proton density and T2-weighted images were obtained to assess the integrity of the ligaments and tendons as well as the amount of preexisting joint effusion. ...
Vaes P H - - 1998
Patients suffering from functional ankle instability were selected based on a structured interview. Talar tilt was measured using supine ankle stress roentgenographs and standing talar tilt was measured using erect ankle stress roentgenographs. A digital roentgenocinematographic analysis of a 50 degrees ankle sprain simulation was performed to measure dynamic talar ...
Rockett M S MS University of Chicago Hospital and Clinics, Illinois, - - 1998
A prospective study was performed on 28 patients who underwent surgery for tendon disorders around the ankle. Preoperatively, all patients had real-time, high resolution ultrasonography performed with a 7.5 or 10 mHz transducer. Twenty of these patients also had a preoperative magnetic resonance imaging (MRI) examination of the ankle. A ...
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