Febuary 02 News Headlines

These are radiology news updates from other sites

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Date this page was last updated: 01/07/2007 03:02:22 PM

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February 28, 2002
  A case of aseptic vertebral necrosis in the context of metastatic lumbar disease - Neuroradiology
Save This Article To My Filing Cabinet Email This Article We present imaging features of metastatic Ewing's sarcoma involving the vertebral spine, which, in certain aspects, mimics other well-known entities of this region, such as Kümmell's and Scheuermann's diseases...
  February 27, 2002
  Pisotriquetral Joint: Assessment with MR Imaging and MR Arthrography - Radiology
Save This Article To My Filing Cabinet Email This Article MR imaging and/or MR arthrography allows visualization of all anatomic structures of the PTJ. MR arthrography improves visualization of findings of osteoarthritis...
  Finger Pulley Injuries in Extreme Rock Climbers: Depiction with Dynamic US - Radiology
Save This Article To My Filing Cabinet Email This Article Dynamic US allows excellent depiction of finger pulley injuries in extreme rock climbers...
  Ultrasound Guidance for the Psoas Compartment Block: An Imaging Study - Anesthesia & Analgesia
Save This Article To My Filing Cabinet Email This Article We developed an ultrasound-guided approach to the psoas compartment at the levels L2-3, L3-4, and L4-5. Feasibility and accuracy were tested on embalmed cadavers and verified by means of computed tomography. Ultrasound guidance proved to be feasible and accurate for the performance of psoas compartment blocks...

 

 

February 22, 2002
  Magnetic resonance imaging of the hindfoot with surgical correlations - Skeletal Radiology
Save This Article To My Filing Cabinet Email This Article This review aims to analyze the complex anatomy and the most frequent pathological conditions involving the hindfoot. The difficult surgical approach to this region makes imaging, in particular MRI, of fundamental importance for clinicians in order to give complete information about the bony, ligamentous or chondral structure involved...
  Sonographic findings of tensor fascia lata tendinopathy: another cause of anterior groin pain - Skeletal Radiology
Save This Article To My Filing Cabinet Email This Article Conclusion: Tendinopathy of the TFL is a cause of anterior groin pain. Sonography can be used to depict changes in the TFL, confirming the diagnosis and assessing the severity of the tendinopathy...
  Sonography of injury of the posterior cruciate ligament of the knee - Skeletal Radiology
Save This Article To My Filing Cabinet Email This Article Conclusion: PCL injury is manifested sonographically either as enlargement of the entire ligament, appreciated by comparison with the contralateral normal PCL, or by focal disruption of the ligament...
  Percutaneous vertebroplasty in the treatment of vertebral body compression fracture secondary to osteogenesis imperfecta - Skeletal Radiology
Save This Article To My Filing Cabinet Email This Article We present a case and extend the indication of percutaneous vertebroplasty in a patient with a vertebral body compression fracture secondary to osteogenesis imperfecta...
  Osteoblastoma-like osteosarcoma of the distal tibia - Skeletal Radiology
Save This Article To My Filing Cabinet Email This Article We report a case of a 14-year-old boy with an intracompartmental lytic lesion with poorly defined margins in the right distal tibia that was originally treated with curettage and bone grafting. Histologic examination showed an osteoblastic tumor with unusual features, which was found on consultation to be an osteoblastoma-like osteosarcoma, a rare, low-grade variant of osteosarcoma. Subsequently, the patient underwent en bloc resection of the distal tibia, which was replaced with vascularized bone graft and followed by chemotherapy. Two years later, he is alive with lung metastases...
  Surface size, curvature analysis, and assessment of knee joint incongruity with MRI in vivo - Magnetic Resonance in Medicine
Save This Article To My Filing Cabinet Email This Article Incongruity was highest in the femoropatellar joint (79.7 m-1) and lowest in the medial femorotibial joint (28.6 m-1). This technique will permit identification of the specific role of surface size, curvature, and incongruity as potential risk factors for osteoarthritis...
  Intra-articular elastofibroma of the shoulder joint - Skeletal Radiology
Save This Article To My Filing Cabinet Email This Article A 19-year-old man presented with an elastofibroma in his left shoulder joint. The patient had had limitation of motion in his left arm for 3 years, especially when rotating internally. Radiography of his left shoulder showed bone erosion in the neck of the humerus. On MR imaging, a soft tissue mass was noted in the shoulder joint eroding bone. The mass showed similar signal intensity to that of surrounding muscles on T1- and T2-weighted images. At surgery, a soft, encapsulated mass was found attached to the subscapularis muscle. It was pathologically confirmed as an elastofibroma. This unusual manifestation of an elastofibroma is discussed...
  Skin metastasis from conventional giant cell tumor of bone: conceptual significance - Skeletal Radiology
Save This Article To My Filing Cabinet Email This Article A conventional giant cell tumor of the proximal femur recurred twice locally and developed pulmonary nodules. The lung lesions were felt to be an example of "benign" metastases. Eight months after the initial presentation, the patient developed a single skin nodule on the contralateral leg. Histologic features of the skin nodule showed conventional giant cell tumor identical to the bone lesion. This nodule is a manifestation of arterial metastasis typical of any malignant tumor and seemingly contradicts the concept of "benign " metastasis...
  Three-dimensional techniques in orthopaedic ultrasonography - Der Orthopaede
Save This Article To My Filing Cabinet Email This Article Due to the low differences of the acoustic impedance visualisation is confusing in a transparency mode and needs a time consuming postprocessing in a surface mode. Future developments address to the field of faster acquisition ("real time 3D"), higher geometric precision and easier visualisation by automated segmentation. By the three-dimensionality of the data set applications in telematics, navigation and simulation ("sonographic training") are expected...
  Ultrasound examination of the hip. An update - Der Orthopaede
Save This Article To My Filing Cabinet Email This Article Hip sonography has continued to progress in terms of its quality and standards. Error analyses showed that the most common misdiagnoses are caused by the false anatomical identification of an echo, by insufficient or missing verification of usability, by inadequate knowledge of exceptions as well as by defective technical equipment...

 

 

February 21, 2002
  Is Soft-Tissue Inflammation in Pedal Infection Contained by Fascial Planes? MR Analysis of Compartmental Involvement in 115 Feet - American Journal of Roentgenology
Save This Article To My Filing Cabinet Email This Article Soft-tissue inflammation of the forefoot tends to spread into neighboring compartments, with little respect for fascial planes. Hindfoot inflammation tends to stay confined. Spread from the foot to the lower leg is rare...
  Anteromedial Impingement of the Ankle - American Journal of Roentgenology
Save This Article To My Filing Cabinet Email This Article Anteromedial impingement of the ankle is now being recognized in the orthopedic literature as a distinct entity. MR arthrographic findings of anteromedial impingement include capsular and synovial soft-tissue thickening anterior to the tibiotalar ligaments and any associated osseous abnormality. Although anteromedial impingement is uncommon compared with other impingement syndromes of the ankle, the radiologist should be aware of the diagnosis and possible findings on cross-sectional imaging...
  Usefulness of Two Indirect MR Imaging Signs to Diagnose Lateral Meniscal Tears - American Journal of Roentgenology
Save This Article To My Filing Cabinet Email This Article We confirmed that an abnormal fascicle is highly associated with a lateral meniscal tear but found that posterolateral pericapsular edema was not associated with lateral meniscal tears. Identifying an abnormal fascicle did not significantly improve the sensitivity of diagnosis of a lateral meniscal tear...
  MR Evaluation of the "Arcuate" Sign of Posterolateral Knee Instability - American Journal of Roentgenology
Save This Article To My Filing Cabinet Email This Article MR imaging is useful for evaluation of associated soft-tissue injuries in patients with the arcuate sign on conventional radiographs. Avulsion injury to the proximal fibula is an important indicator of the internal derangement of the knee and for predicting the mechanism of an injury with varus stress. Cruciate ligament tear and bone bruises on the anteromedial condyle of the femur and tibia are common associated findings...
  Cervical Spine Injuries in Patients 65 Years Old and Older - American Journal of Roentgenology
Save This Article To My Filing Cabinet Email This Article Cervical spine injuries in elderly patients tend to involve more than one level with consistent clinical instability and commonly occur at the atlantoaxial complex. Old elderly patients and patients who fall from standing height are more prone to injuries of the upper cervical spine...
  The effect of low-intensity pulsed ultrasound therapy on time to fracture healing: a meta-analysis - Canadian Medical Association Journal
Save This Article To My Filing Cabinet Email This Article Interpretation: There is evidence from randomized trials that low-intensity pulsed ultrasound treatment may significantly reduce the time to fracture healing for fractures treated nonoperatively. There does not appear to be any additional benefit to ultrasound treatment following intramedullary nailing with prior reaming. Larger trials are needed to resolve this issue...

 

 

February 20, 2002
  The intervertebral disk: a landmark for spinal diseases in children - European Radiology
Save This Article To My Filing Cabinet Email This Article The aim of this paper is to describe the diagnostic value of the different radiological modifications of the intervertebral disk in children...
  Fluid collections and juxta-articular cystic lesions of the shoulder: spectrum of MRI findings - European Radiology
Save This Article To My Filing Cabinet Email This Article The MR imaging features of fluid collections and juxta-articular cystic lesions of the shoulder are discussed, with special focus on those related to subacromial impingement and rotator cuff tears...
  Ultrasonography of the shoulder: pitfalls and variants - Canadian Association of Radiologists Journal
Save This Article To My Filing Cabinet Email This Article Ultrasonography (US) of the shoulder, particularly the evaluation of the rotator cuff, is the most common examination of the musculoskeletal system performed in most practices. Despite this, it remains one of the most difficult examinations to learn... The Full Text of This Article Is Available
  Musculoskeletal ultrasonography in children - Canadian Association of Radiologists Journal
Save This Article To My Filing Cabinet Email This Article With the development of high-resolution ultrasound transducers, the role of ultrasonography (US) in evaluating the musculoskeletal system has increased... The Full Text of This Article Is Available
  Ultrasonography of ankle ligaments - Canadian Association of Radiologists Journal
Save This Article To My Filing Cabinet Email This Article The lateral collateral ligament of the ankle is a complex of 3 ligaments: the anterior and posterior talofibular ligaments and the calcaneofibular ligament; these ligaments work together to support the lateral aspect of the ankle... The Full Text of This Article Is Available

 

 

  February 19, 2002
  MRI appearances of inflammatory vertebral osteitis in early ankylosing spondylitis - Pediatric Radiology
Save This Article To My Filing Cabinet Email This Article Conclusions: Awareness of the MRI appearances of vertebral osteitis is helpful in suspecting AS. Radiological examination of the SI facilitates the diagnosis and unnecessary further imaging can be avoided...
  Intraosseous vascular access defect: fracture mimic in the skeletal survey for child abuse - Pediatric Radiology
Save This Article To My Filing Cabinet Email This Article Two infants were transferred to the emergency department for injuries suggestive of child abuse. Skeletal surveys showed cortical bone defects in the proximal tibiae that were initially interpreted as healing fractures. Further investigation, however, revealed that intraosseous (IO) vascular access needles had been placed at these sites in both infants...
  Accuracy of magnetic resonance imaging in determining the presence and size of recurrent rotator cuff tears - Journal of Shoulder and Elbow Surgery
Save This Article To My Filing Cabinet Email This Article The sensitivity of MRI for the diagnosis of retear was 91%, and the specificity was 25%. MRI is accurate in diagnosing a recurrent full-thickness cuff tear in postsurgical shoulders. However, it is relatively inaccurate in correctly defining the size of the tear. MRI also has a tendency to overdiagnose cuff tears in postsurgical patients with continued pain and symptoms...
  MR imaging of the foot and ankle: patterns of bone marrow signal abnormalities - European Radiology
Save This Article To My Filing Cabinet Email This Article This pictorial review illustrates MR imaging findings of normal variants of bone marrow of the foot and ankle, and the varied responses of bone marrow to trauma, stress, or disease...
  Clear cell chondrosarcoma: unusual radiologic appearances with histologic correlation - European Radiology
Save This Article To My Filing Cabinet Email This Article The findings of X-ray films and MRI are described with histologic correlation. In the first case the lesion showed a very expansile and long segment involvement of the humerus. In the second case the lesion was located in the diaphysis of the femur causing a large cortical destruction...
  Imaging features of iliopsoas bursitis - European Radiology
Save This Article To My Filing Cabinet Email This Article The most accurate way to assess iliopsoas bursitis is with MR imaging; thus, it should be used for accurate therapy planning and follow-up studies. In order to initially prove an iliopsoas bursitis, US is the most cost-effective, easy-to-perform and fast alternative...
  Bone structure of the distal radius and the calcaneus vs BMD of the spine and proximal femur in the prediction of osteoporotic spine fractures - European Radiology
Save This Article To My Filing Cabinet Email This Article In this study BMD of the spine and structure measures of the distal radius were best suited to predict the osteoporotic fracture status of the spine. A combination of BMD and structure measures did not yield any additional information on fracture status...
  Medial meniscocapsular separation: MR imaging criteria and diagnostic pitfalls - European Journal of Radiology
Save This Article To My Filing Cabinet Email This Article MRI signs used in the diagnosis of meniscocapsular separation include meniscal displacement relative to the tibia, meniscal corner tear, perimeniscal fluid, irregular meniscal outline, meniscofemoral and meniscotibial extension tears, and interposition of contrast medium between the meniscus and the MCL. Potential causes of false positive diagnosis of meniscocapsular separation include MCL bursitis, meniscal cyst, MCL tear, joint effusion, and perimeniscal fat...
  The influence of the posterior cruciate ligament in the maintenance of joint line in primary total knee arthroplasty A radiologic study - Journal of Arthroplasty
Save This Article To My Filing Cabinet Email This Article The aim of this study was to compare 2 total knee arthroplasty (TKA) designs radiologically to determine if a posterior cruciate ligment (PCL)–substituting design led to a built-in error of elevation of the joint line postoperatively...
  Collarless polished tapered stem Clinical and radiological follow-up over 5 years - Journal of Arthroplasty
Save This Article To My Filing Cabinet Email This Article The clinical and radiologic outcome of a cemented, polished, tapered stem (CPT), implanted using contemporary cementing techniques in 108 consecutive operated hips in 100 patients (68 women and 32 men, aged 19 to 83 years at the time of surgery [mean, 65 years]) was assessed after >5 years. The Harris hip scores were good or excellent in 96% of the patients...

 

 

February 14, 2002
  Ultrasound of muscles - European Journal of Radiology
Save This Article To My Filing Cabinet Email This Article Muscle atrophy, inflammation, avulsion and tumours are also good indications for ultrasound...
  Ultrasound of tendons and nerves - European Journal of Radiology
Save This Article To My Filing Cabinet Email This Article Overall, US is an effective technique for imaging tendons and nerves. In most cases, a focused US examination can be performed more rapidly and efficiently than MR imaging...
  Cross-sectional imaging of primary osseous hemangiopericytoma - European Journal of Radiology
Save This Article To My Filing Cabinet Email This Article Although cross-sectional imaging findings are non-specific, they add to the diagnosis and provide valuable information about the extent of bone destruction and local tumor spread in patients with primary osseous hemangiopericytoma. While CT demonstrates the extent of bone destruction best, MRI better visualizes medullary and soft tissue extension of the tumor. Curvilinear signal abnormalities support the diagnosis of hemangiopericytoma of bone. This imaging pattern is best visualized on fat-suppressed or contrast enhanced T1-weighted MR images...
  Ultrasound of the joints - European Journal of Radiology
Save This Article To My Filing Cabinet Email This Article The aims of this review are twofold: firstly, to present the normal US appearance of the joint structures that are susceptible to US examination, including the joint surfaces, intra-articular structures such as menisci and other fibrocartilages, capsule and ligaments; and secondly, to show the US appearance of the most commonly encountered joint disorders and discuss the role of US in the imaging strategy of joint disorders...
  Hoffa's recess: incidence, morphology and differential diagnosis of the globular-shaped cleft in the infrapatellar fat pad of the knee on MRI and cadaver dissections - European Journal of Radiology
Save This Article To My Filing Cabinet Email This Article A fluid-filled indentation within the inferior posterior margin of Hoffa's fat pad has to be expected in more than 10% of knee studies and should not be confused with tumors like ganglion cysts. We term this cleft the infrahoffatic recess. One hypothesis of its origin concerns the embryological regression process of the infrapatellar membrane into the infrapatellar synovial fold. It should not be confused with linear clefts due to the alar folds...
  Surface aneurysmal bone cysts: a pictorial review - European Journal of Radiology
Save This Article To My Filing Cabinet Email This Article The imaging features distinguishing the various categories are illustrated and the differential diagnosis is discussed...
  MRI of the arthritic finger joints: synovial membrane volume determination, a manual vs a stereologic method - European Journal of Radiology
Save This Article To My Filing Cabinet Email This Article The time used for volume determination in a patient varied from 1 to 2.5 h by manual outlining and from 0.5 to 1 h by stereologic determination. Stereologic volume estimation can provide measures of synovial volumes comparable to the manual outlining method and is less time-consuming. Stereologic volume estimation seems to be a clinically useful method, especially if it is integrated in the MR unit's workstation...

 

February 07, 2002
  Comparative assessment of leflunomide and methotrexate for the treatment of rheumatoid arthritis, by dynamic enhanced magnetic resonance imaging - Arthritis & Rheumatism
Save This Article To My Filing Cabinet Email This Article Results of this study validate the sensitivity of DEMRI in detecting inflammatory changes in active RA in response to treatment. Improvement in synovial inflammation as measured by IRE was significantly better with leflunomide than with methotrexate over 4 months of therapy...
  Magnetic resonance imaging of normal and osteoarthritic trabecular bone structure in the human knee - Arthritis & Rheumatism
Save This Article To My Filing Cabinet Email This Article High-resolution MRI of the knee joint can provide a noninvasive assessment of trabecular bone structure. Trabecular bone structure, determined by high-resolution MRI, shows significant variation in patients with varying degrees of OA. The impact of OA on trabecular bone is different in the tibia than in the femur, and this difference depends on the extent of the disease...
  The role of biomechanical factors and HLA-B27 in magnetic resonance imaging-determined bone changes in plantar fascia enthesopathy - Arthritis & Rheumatism
Save This Article To My Filing Cabinet Email This Article Conclusion: The association of HLA-B27 with bone pathology in early enthesitis may have implications for a better understanding of the pathogenesis of SpA ...
  Comparison of knee magnetic resonance imaging findings in patients referred by orthopaedic surgeons versus nonorthopaedic practitioners - Arthroscopy
Save This Article To My Filing Cabinet Email This Article Conclusions: Patients referred by nonorthopaedic practitioners had significantly more normal knee MRI examination results than did those referred by orthopaedic surgeons...

 

February 06, 2002
  Factors related to radiological damage in 61 Spaniards with early rheumatoid arthritis - Annals of Rheumatic Diseases
Save This Article To My Filing Cabinet Email This Article Conclusions: Radiological damage at disease onset is associated with a worse clinical presentation and RF positivity, which are markers of poor outcome. There is a subgroup of patients, with erosions only in their feet, whose clinical presentation is less aggressive. To identify these cases of early erosive RA, radiographs of the feet should be obtained routinely...
  Clinical risk factors for hamstring muscle strain injury: a prospective study with correlation of injury by magnetic resonance imaging - British Journal of Sports Medicine
Save This Article To My Filing Cabinet Email This Article Hamstring injuries are common in Australian football, and previous posterior thigh injury is a significant risk factor. Other factors, such as increasing age, being of aboriginal descent, or having a past history of knee injury or osteitis pubis, increase the risk of hamstring strain independently of previous posterior thigh injury. However, as the numbers in this study are small, further research is needed before definitive statements can be made...
  Validation of Ottawa ankle rules protocol in Greek athletes: study in the emergency departments of a district general hospital and a sports injuries clinic - British Journal of Sports Medicine
Save This Article To My Filing Cabinet Email This Article Use of the Ottawa ankle rules protocol in evaluating injured Greek athletes resulted in 100% sensitivity when performed by orthopaedic residents or sports medicine doctors, and had the potential to reduce the use of radiography...
  Stress fracture of the clavicle in a young female gymnast - British Journal of Sports Medicine
Save This Article To My Filing Cabinet Email This Article This is the report of one such fracture in a 10 year old female gymnast, who presented with a six week history of medial clavicular pain. Radiographs and a computed tomography scan showed an undisplaced fracture through the medial third of the clavicle extending inferiorly to the rhomboid fossa in the inferior aspect of the clavicle. Pathological fracture was excluded by magnetic resonance imaging. The patient was treated conservatively and was able to return to full training eight weeks later...
  Traumatic rupture of plantar fascia leading to later development of claw toe deformity: two case reports - Foot and Ankle Surgery
Save This Article To My Filing Cabinet Email This Article We report on two patients who had stubbing injury to a lesser toe causing soft-tissue bruising at the base of the toe without displacement on X-ray initially. Claw toe deformity of these toes developed some months later