January 2005 News Headlines

These are radiology news updates from other sites

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

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January 31, 2005
  Sensitivity and specificity of plain radiographs for detection of medial-wall perforation secondary to osteolysis - Journal of Arthroplasty
Save This Article To My Filing Cabinet Email This Article Medial-wall perforation secondary to pelvic osteolysis impacts planning of acetabular revision surgery and may result in pelvic fracture. We compared commonly used radiographic signs for detecting medial-wall perforation (ballooning or discontinuity of Kohler's line or the iliopubic line) to findings from computed tomography (CT) in 27 cementless total hip arthroplasty patients with pelvic osteolysis...
  MRI for Diagnosis and Monitoring of Patients with Eosinophilic Fasciitis - American Journal of Roentgenology
Save This Article To My Filing Cabinet Email This Article Conclusions: In EF, MRI reveals characteristic findings including thickening, signal abnormalities, and contrast enhancement of the superficial and, to a lesser extent, deep muscle fasciae. MRI is useful for establishing the diagnosis, guiding the choice of biopsy site, and assessing treatment response...
  Sonography of a Rupture of the Tendon of the Extensor Pollicis Longus Muscle: Initial Clinical Experience and Correlation with Findings at Cadaveric Dissection - American Journal of Roentgenology
Save This Article To My Filing Cabinet Email This Article Conclusions: Sonography may aid in diagnosing a rupture of the EPL tendon and in the preoperative assessment of gap size and position of the retracted tendon ends. A characteristic tubular hypoechoic area may be seen crossing over the extensor carpi radialis tendons...
  Sonography of Full-Thickness Supraspinatus Tears: Comparison of Patient Positioning Technique with Surgical Correlation - American Journal of Roentgenology
Save This Article To My Filing Cabinet Email This Article Conclusions: Sonography reliably detects and quantifies supraspinatus tears. Both the Crass and the modified Crass positions reflected the true size of supraspinatus tears in the transverse plane. In the sagittal plane, the Crass position is the more useful to quantify supraspinatus tears because the modified Crass position overestimates the size of such tears...

 

 

January 28, 2005
  Radiological Findings and Clinical Results of 102 Thrust-Plate Femoral Hip Prostheses: A Follow-up of 2 to 8 Years - Journal of Arthroplasty
Save This Article To My Filing Cabinet Email This Article We report the radiological and clinical outcome of 102 consecutive femoral hip arthroplasty we prospectively followed up in 84 patients using the third generation of the thrust-plate prosthesis with a mean period of follow-up of 58 (range, 26-100) months. Four implants were revised: 2 because of an infection and 2 because of aseptic loosening. The thrust-plate prosthesis, which allows preservation of part of the femoral neck, was used in younger patients, 80% were younger than 60 years...
  Imaging Findings of Kimura's Disease in the Soft Tissue of the Upper Extremity - American Journal of Roentgenology
Save This Article To My Filing Cabinet Email This Article Conclusions: Kimura's disease should be considered as a possible diagnosis when a partially or poorly defined subcutaneous mass of high signal intensity on T1- and T2-weighted images with homogeneous enhancement, surrounding subcutaneous edema, and internal flow voids is seen in the medial epitrochlear region in an Asian person, especially if accompanied by peripheral eosinophilia...
  The "Floating" Meniscus: MRI in Knee Trauma and Implications for Surgery - American Journal of Roentgenology
Save This Article To My Filing Cabinet Email This Article Conclusions: The presence of a floating meniscus on MRI is a result of significant trauma to the knee leading to meniscal avulsion and is often associated with significant ligamentous injury. Alerting the surgeon to the presence of a meniscal avulsion facilitates appropriate surgical planning with meniscal reattachment to the tibial plateau...
  Observer Variation in MRI Evaluation of Patients Suspected of Lumbar Disk Herniation - American Journal of Roentgenology
Save This Article To My Filing Cabinet Email This Article Conclusion: On average, more than 50% of interobserver variation in MRI evaluation of patients with lumbosacral radicular pain is caused by disagreement on bulging disks. Knowledge of clinical information does not influence the detection of herniations but lowers the threshold for reporting bulging disks...
January 27, 2005
  Magnetic resonance imaging in osteomalacic insufficiency fractures of the pelvis - Clinical Radiology
Save This Article To My Filing Cabinet Email This Article Follow-up MR examinations of 2 subjects showed that abnormal signal intensity had disappeared after appropriate treatment...Conclusion: The results of this study showed that the iliac and sacral bones are frequently involved in patients with OM. MRI can determine the clinical activity of the disease, and can monitor the response to treatment of the active type of insufficiency fractures...

 

 

January 26, 2005
  Chondroblastoma Metastasis to Lung Visualized on Bone Scan - Clinical Nuclear Medicine
Save This Article To My Filing Cabinet Email This Article A 52-year-old female patient with multiple recurrences of chondroblastoma involving the right femur presented with worsening pain and swelling above her right knee. The patient had previously undergone multiple curettages and resections of the involved femur as well as a thoracotomy and resection of pulmonary metastases...
  Retinoid Induced Ossification of the Interosseous Membrane of the Leg - Clinical Nuclear Medicine
Save This Article To My Filing Cabinet Email This Article A 38-year-old male marathon runner presented with left leg pain after increasing his level of training. The pain increased over a period of 5 months. At this time, a plain x-ray showed periosteal new bone formation at the lateral edge of the left tibia. Bone scintigraphy showed increased uptake at the same site, and a diagnosis of stress fracture was made...
  Evaluation of Shoulder Integrity in Space: First Report of Musculoskeletal US on the International Space Station - Radiology
Save This Article To My Filing Cabinet Email This Article Investigative procedures were approved by Henry Ford Human Investigation Committee and NASA Johnson Space Center Committee for Protection of Human Subjects. Informed consent was obtained. Authors evaluated ability of nonphysician crewmember to obtain diagnostic-quality musculoskeletal ultrasonographic (US) data of the shoulder by following a just-in-time training algorithm and using real-time remote guidance aboard the International Space Station (ISS)...
January 25, 2005
  Reliability and Reproducibility of Radiographs of Greater Tuberosity Displacement - Journal of Bone and Joint Surgery
Save This Article To My Filing Cabinet Email This Article To our knowledge, we are the first to examine the accuracy and reliability of interpreting images of known displacements of the greater tuberosity. Multiple radiographic views are needed to evaluate displacement of the greater tuberosity appropriately. The anteroposterior view in external rotation can profile the greater tuberosity and help demonstrate small displacements. Treatment decisions should be consistent between surgeons when multiple views are used...
  Age-Adjusted Baseline Data for Women with Hallux Valgus Undergoing Corrective Surgery - Journal of Bone and Joint Surgery
Save This Article To My Filing Cabinet Email This Article Conclusions: The bodily pain score from the SF-36 appears to be a sensitive measure of problems experienced by patients undergoing bunion surgery. Surprisingly, the severity of the deformity as measured radiographically did not correlate with any of the fifteen scores measured. These data may serve as a baseline for clinical hallux valgus studies with use of the SF-36 or the AAOS outcomes questionnaire...

 

  MRI of the axial skeleton manifestations of ankylosing spondylitis - Clinical Radiology
Save This Article To My Filing Cabinet Email This Article It is believed that the second to tenth ribs, by articulating with the disc, have less mechanical trauma to the CV joints.2 The first and lower thoracic joints tend to be involved with increased frequency in AS. These two cases well illustrate the fact that CV arthropathy can be severe in AS and, if the disease defining sacroiliitis was mild and undiagnosed (as in our first case), it may appear to the radiologist as the presenting and indeed only manifestation if the SI joints have not been imaged... The Full Text of This Article Is Available
  Applications of Ultrasound in Arthritis - Seminars in Musculoskeletal Radiology
Save This Article To My Filing Cabinet Email This Article The current article demonstrates some of the common sonographic features of the major arthritides. In rheumatoid arthritis, sonography shows the primary intra-articular location of the joint synovitis and bone erosion as well as any associated tenosynovitis. In early disease, this distribution can be distinguished from that of the spondyloarthropathies, in which the changes are typically centered on the entheses...

 

 

January 24, 2005
  Use of novel interactive input devices for segmentation of articular cartilage from magnetic resonance images - Osteoarthritis and Cartilage
Save This Article To My Filing Cabinet Email This Article We found no difference in consistency or precision of cartilage volume, mean thickness or surface area between the three input devices tested...Conclusions: We conclude that measurements of cartilage made using articular cartilage segmentation from MR images are independent of the input device chosen for user interaction...
January 21, 2005
  Surgery versus conservative therapy for carpal tunnel syndrome: methodology of a randomized clinical trial - BMC Musculoskeletal Disorders
Save This Article To My Filing Cabinet Email This Article Conservative treatment remains the standard of care for treating mild to moderate carpal tunnel syndrome despite a small number of well-controlled studies and limited objective evidence to support current treatment options. There is an increasing interest in the usefulness that wrist magnetic resonance imaging could play in predicting who will benefit for various treatments...
January 20, 2005
  Lessons learnt from the painful shoulder; a case series of malignant shoulder girdle tumours misdiagnosed as frozen shoulder - BMC Medical Imaging
Save This Article To My Filing Cabinet Email This Article Adhesive capsulitis or frozen shoulder is a common condition characterized by shoulder pain and stiffness. In patients in whom conservative measures have failed, more invasive interventions such as arthrographic or arthroscopic distension can be very effective in relieving symptoms and improving range of movement. However, absolute contraindications to these procedures include the presence of neoplasia around the shoulder girdle...
January 19, 2005
  High-resolution optical coherence tomographic imaging of osteoarthritic cartilage during open knee surgery - Arthritis Research & Therapy
Save This Article To My Filing Cabinet Email This Article This study demonstrates the first real-time imaging in vivo of human cartilage in normal and osteoarthritic knee joints at a resolution of micrometers, using optical coherence tomography (OCT). This recently developed high-resolution imaging technology is analogous to B-mode ultrasound except that it uses infrared light rather than sound...
  Magnetic Resonance Microscopic Images with 50-mm Field-of-View of the Medial Aspect of the Knee - Acta Radiologica
Save This Article To My Filing Cabinet Email This Article MR microscopy delineated tiny cleavages in cases with meniscal tears. The mean values of qualitative evaluation of the MR microscopy were significantly higher than those of the routine imaging...Conclusion: High-resolution imaging delineated fine structures of the medial aspect of the knee...


  Multidetector Computed Tomography of Cervical Spine Fractures in Ankylosing Spondylitis - Acta Radiologica
Save This Article To My Filing Cabinet Email This Article Conclusion: MDCT is superior to plain radiographs or MRI, showing significantly more injuries and yielding more information on fracture morphology. MRI is valuable, however, in evaluating the spinal cord and soft-tissue injuries. Fractures in advanced AS often show an abnormal orientation and are frequently associated with spinal cord injuries...

 

 

January 18, 2005
  Osteoarthritis and the postmenopausal woman: Epidemiological, magnetic resonance imaging, and radiological findings - Seminars in Arthritis and Rheumatism
Save This Article To My Filing Cabinet Email This Article Conclusions: There is weak epidemiological evidence suggesting a role for estrogen therapy in joint health in postmenopausal women. The data are more suggestive of an effect on large joint OA than small joint OA...
  Imaging of Intraarticular Masses - Radiographics
Save This Article To My Filing Cabinet Email This Article Intraarticular masses can be classified as noninfectious synovial proliferative processes (lipoma arborescens, synovial osteochondromatosis, pigmented villonodular synovitis, rheumatoid arthritis), infectious granulomatous diseases (tuberculous arthritis, coccidioidomycosis arthritis), deposition diseases (gout, amyloid arthropathy), vascular malformations (synovial hemangioma, arteriovenous malformations), malignancies (synovial chondrosarcoma, synovial sarcoma, synovial metastases), and miscellaneous (cyclops lesion)...
January 17, 2005
  Serum hyaluronan levels and radiographic knee and hip osteoarthritis in African Americans and Caucasians in the Johnston County Osteoarthritis Project - Arthritis & Rheumatism
Save This Article To My Filing Cabinet Email This Article Conclusion: These cross-sectional data support a role for serum HA as a biomarker of radiographic OA. The variations in levels of serum HA attributable to ethnicity, sex, and age were not explained by radiographic OA, BMI, or comorbidities. The lack of strong confounding between serum HA and comorbidities further supports a role for serum HA as a potential biomarker...
January 14, 2005
  Radiographic Anomalies That May Alter Chiropractic Intervention Strategies Found in a New Zealand Population - Journal of Manipulative and Physiological Therapeutics
Save This Article To My Filing Cabinet Email This Article Conclusion: A large percentage of patients presenting for chiropractic care have anomalies present on spinal radiographs. Further research and analysis is necessary to investigate the risk-verses-benefit ratio of spinal radiographs for chiropractic patients...

 

 

January 13, 2005
  Reasons for Revision Hip Surgery: A Retrospective Review - Clinical Orthopedics and Related Research
Save This Article To My Filing Cabinet Email This Article The purpose of this study was to determine the indications for contemporary revision hip surgery in a consecutive series of patients. We retrospectively reviewed the clinical records and radiographs of 439 revision hip surgeries done between 1996 and 2003. Fifty-five percent of the surgeries were for aseptic loosening, 14% were for instability, 13% were for osteolysis around a well-fixed implant, 7% were for infection, 5% were for periprosthetic fracture, 3% were for conversion of a hemiarthroplasty, 1% was for psoas impingement, 1% was for loose recalled implants, and 1% was for implant fracture...
January 12, 2005
  Arthroscopic Findings in Chronic Lateral Ankle Instability - American Journal of Sports Medicine
Save This Article To My Filing Cabinet Email This Article There were no significant differences in the clinical and radiologic results between patients with chondral lesions and those without chondral lesions...Conclusions: Reconstruction of the lateral ligament can be successful regardless of the presence of focal chondral lesions in patients with chronic lateral ankle instability when preoperative weightbearing radiographs of the ankle do not show any joint space narrowing...
January 11, 2005
  Intercondylar Notch Stenosis Is Not a Risk Factor for Anterior Cruciate Ligament Tears in Professional Male Basketball Players - American Journal of Sports Medicine
Save This Article To My Filing Cabinet Email This Article Conclusions: The notch width index did not predict the rate of anterior cruciate ligament injury. A level of critical notch stenosis was not detected. Anterior cruciate ligament injury could not be predicted by the absolute measurement of the femoral inter-condylar notch. Use of a preparticipation notch view radiograph in male professional basketball players as a predictor of anterior cruciate ligament injury is not recommended...

 

 

January 10, 2005
  MR Imaging of Diabetic Foot Infection - Seminars in Musculoskeletal Radiology
Save This Article To My Filing Cabinet Email This Article Infection of the foot is common, especially in the diabetic population. Over the past decade, magnetic resonance imaging (MRI) has become a 'gold standard' for evaluation of pedal infection. Therefore it is important for the radiologist to understand the MRI appearance of various manifestations of infection as well as conditions that may simulate infection, including neuropathic disease...
  Imaging of Posttraumatic Osteomyelitis - Seminars in Musculoskeletal Radiology
Save This Article To My Filing Cabinet Email This Article Posttraumatic osteomyelitis frequently leads to an illness characterized by chronicity and recurrences. Bone changes themselves, developed during chronic infection, and orthopedic implants heavily influence the diagnostic value of the different imaging methods. Conventional radiography remains the cornerstone of imaging of acute and chronic osteomyelitis, but other modalities such as ultrasonography, radionuclide studies, computed tomography, and magnetic resonance imaging may be necessary. The values of the techniques in different clinical settings are described...
  Imaging of Osteomyelitis with Special Reference to Children - Seminars in Musculoskeletal Radiology
Save This Article To My Filing Cabinet Email This Article Infection of bone in children represents a diagnostic and therapeutic challenge to the pediatrician, the surgeon, the radiologist, and the pathologist. The pattern of manifestation varies and is dependent on the site of involvement, the initiating event, the infecting organism, and the acute or chronic nature of the illness. Early diagnosis allows prompt treatment, which can prevent many of the dreaded complications of this disease...
January 07, 2005
  A comparison of 4 common methods of hand-measured techniques with a computerized technique to measure the first intermetatarsal angle - Journal of Foot & Ankle Surgery
Save This Article To My Filing Cabinet Email This Article Measurement of the intermetatarsal (IM) angle on plain dorsoplantar radiographs is considered a standard in the surgical evaluation of hallux valgus. The angle formed in this measurement helps determine the selection of surgical procedure. A study was performed to determine the most consistent method to radiographically measure the first IM angle. The IM angle was measured manually with a tractograph by using 4 different techniques on 50 preoperative dorsoplantar radiographs... The Full Text of This Article Is Available
  Assessment of outcome in ankylosing spondylitis: an extended radiographic scoring system - Annals of Rheumatic Diseases
Save This Article To My Filing Cabinet Email This Article The mean change in the cervical and lumbar spine scores between weeks 0 and 48 of all patients was 1.45 and 1.06, respectively. Change in radiological score was seen in 36/57 patients (lumbar and cervical spine 11, cervical spine 12, lumbar spine 13 patients)...Conclusion: The mSASSS is useful for assessing extensive radiographic damage in AS. It is reliable, detects changes over 48 weeks, and shows a satisfactory face and construct validity...

 

 

January 06, 2005
  A Systematic Approach to Magnetic Resonance Imaging Interpretation of Sports Medicine Injuries of the Knee - American Journal of Sports Medicine
Save This Article To My Filing Cabinet Email This Article Magnetic resonance imaging is performed more commonly on the knee than on any other joint, and it is an excellent diagnostic tool that can aid in the evaluation of a host of sports-related injuries involving the ligaments, tendons, menisci, osseous structures, and articular surfaces. A thorough evaluation of the images, however, can be a daunting task, as the study often contains dozens of images obtained with multiple pulse sequences and in several imaging planes...
  The influence of slice thickness on the volume measurement accuracy of 3-D MR reconstructions of acrylic phantoms: a precursor to knee imaging - Radiography
Save This Article To My Filing Cabinet Email This Article Conclusion: The results of this study support the accepted inverse association between slice thickness and volume measurement accuracy. If a 5% level of PME is considered acceptable, the findings suggest that slice thicknesses of 3.0 mm or less be employed where analysis of lesions estimated to fall within a volume range of 100020,000 mm3 is being considered...
  Chronic Recurrent Multifocal Osteomyelitis - Seminars in Musculoskeletal Radiology
Save This Article To My Filing Cabinet Email This Article Chronic recurrent multifocal osteomyelitis (CRMO) is often diagnosed by exclusion of the two main differential diagnoses-bacterial infections and tumor-by assessing for a characteristic course and the findings by conventional radiography, if necessary supplemented by scintigraphy and/or magnetic resonance imaging (MRI). The MRI appearance of CRMO lesions in tubular bones and the spine is often rather characteristic and support the diagnosis. It is important to diagnose CRMO to avoid unnecessary diagnostic procedures and initiate an appropriate therapy...
January 05, 2005
  Radionuclide Bone Imaging in Erdheim-Chester Disease - Clinical Nuclear Medicine
Save This Article To My Filing Cabinet Email This Article Erdheim-Chester disease is a rare sporadic systemic histiocytic disease of unknown etiology that routinely involves the diametaphyseal region of the long bones of the appendicular skeleton. In addition, there is frequent involvement of multiple internal organs producing protean manifestations. Although definitive diagnosis requires histopathologic confirmation, its appearance on bone scintigraphy is virtually pathognomonic of this entity...

 

 

January 04, 2005
  Atypical pattern of acute severe shoulder pain: contribution of sonography - Joint, Bone, Spine
Save This Article To My Filing Cabinet Email This Article A patient presented with an atypical pattern of acute severe shoulder pain. Sonography elucidated the mechanism of the pain and allowed effective treatment. The patient was unable not only to move her shoulder but also to flex and to extend her elbow. Sonography showed a calcific deposit in the subscapularis tendon with local edema displacing the long head of the biceps tendon out of the bicipital groove...
  Acute Wrist Trauma: Value of a Short Dedicated Extremity MR Imaging Examination in Prediction of Need for Treatment - Radiology
Save This Article To My Filing Cabinet Email This Article Conclusions: A short MR imaging examination with a low-field-strength MR imaging system following radiography in initial evaluation of patients with acute wrist trauma has additional value in prediction of treatment need; it does not have value in identification of patients who can be discharged without further follow-up...
  Acute Knee Trauma: Value of a Short Dedicated Extremity MR Imaging Examination for Prediction of Subsequent Treatment - Radiology
Save This Article To My Filing Cabinet Email This Article Conclusion: Implementation of a dedicated extremity MR imaging examination, in addition to or instead of radiography, performed in patients with traumatic knee injury improves prediction of the need for additional treatment but does not significantly aid in identification of patients who can be discharged without further follow-up. Value of a short MR imaging examination in the initial stage after knee trauma is limited...
January 03, 2005
  Chronic Plantar Fasciitis: Acute Changes in the Heel after Extracorporeal High-Energy Shock Wave Therapy-Observations at MR Imaging - Radiology
Save This Article To My Filing Cabinet Email This Article After ESWT, the extant of bone marrow edema had increased in one heel and had newly developed in another heel. The heel spur seen in nine feet was not affected by ESWT. In 17 heels, the proximal plantar fascia was abnormally thick, with thickness not significantly changed with use of ESWT...Conclusions: Increase in soft-tissue edema is the most common acute response associated with ESWT...