March 2005 News Headlines

These are radiology news updates from other sites

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

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March 30, 2005   Computed tomography-guided and arthroscopically controlled en bloc retrograde resection of a juxta-articular osteoid osteoma of the tibial plateau - Arthroscopy Osteoid osteoma represents approximately 10% to 11% of all the benign bone tumors. The localization at the articular and juxta-articular level of the knee is an atypical picture that causes both diagnostic and therapeutic problems. We present the case of an osteoid osteoma of the lateral tibial plateau just beneath the joint level. The lesion was removed by a rear-entry computed tomography (CT)-guided drill under arthroscopic control and the bony defect filled with bone graft harvested from the proximal tibial metaphysis... March 29, 2005   Trabecular Bone Structure Obtained From Multislice Spiral Computed Tomography of the Calcaneus Predicts Osteoporotic Vertebral Deformities - Journal of Computer Assisted Tomography Statistically significant correlations were found between most structure parameters and BMD...Conclusion: Structural parameters of trabecular bone as obtained from high-resolution MSCT images of the calcaneus can be used to differentiate between donors with and without osteoporotic vertebral fractures, using a high-resolution and high-dose CT protocol...   Primary Leiomyosarcoma of Bone: Report of 4 Cases - Journal of Computer Assisted Tomography Primary leiomyosarcoma of bone is a very rare tumor. Four cases are reported: 3 tumors were located in the femur and 1 in the talus. Clinical and imaging findings including radiographs, CT, and MRI are described. The final diagnosis was made by histopathological, immunohistochemical, and/or ultrastructural study after biopsy... March 28, 2005   An 19F Magnetic Resonance-Based In Vivo Assay of Solid Tumor Methotrexate Resistance: Proof of Principle - Clinical Cancer Research Interestingly, a 400 mg/kg i.v. bolus injection of FMTX is a more potent cytotoxic agent in vivo against methotrexate-sensitive tumors than is the parent compound...Conclusions: In principle, the assay method described herein could be implemented in the clinic as a diagnostic tool to make decisions regarding therapeutic protocol for the treatment of osteosarcoma on a case-by-case basis... March 25, 2005   Radiographic progression in children with polyarticular juvenile rheumatoid arthritis: a pilot study - Annals of Rheumatic Diseases Conclusions: About half the children with polyarticular juvenile rheumatoid arthritis will have evidence of radiographic progression within two years after diagnosis. Thus newly diagnosed children are at high risk of substantial joint destruction and potential disability, emphasising the need for prompt treatment... March 24, 2005   Sonographic Evaluation of Injuries to the Pectoralis Muscles - American Journal of Roentgenology Our aim was to show the application of high-resolution sonography for grading and defining athletic and nonathletic injuries to the pectoralis muscles...Conclusion: Sonography provides dynamic high-resolution imaging for the diagnosis and grading of injuries to the pectoralis muscles...   How Old Is This Fracture? Radiologic Dating of Fractures in Children: A Systematic Review - American Journal of Roentgenology Conclusion: Radiologic dating of fractures is an inexact science. Most radiologists date fractures on the basis of their personal clinical experience, and the literature provides little consistent data to act as a resource. There is an urgent need for research to validate the criteria used in the radiologic dating of fractures in children younger than 5 years...     March 23, 2005   The symptomatic accessory navicular bone: A report and discussion of the clinical presentation - Current Problems in Diagnostic Radiology An accessory navicular bone is a congenital anomaly caused by aberrant ossification. Usually asymptomatic, they are relatively common in our population. They can present in several different locations, which can have an impact on the clinical presentation and the degree of dysfunction. Occasionally, these can become symptomatic, which can manifest as chronic or acute on chronic foot pain. Diagnosis of this condition relies on radiographic evaluation... March 22, 2005   Influence of axial rotation on chiropractic pelvic radiographic analysis - Journal of Manipulative and Physiological Therapeutics The strongest relationship existed between y-axis rotation and pubic symphysis deviation...Conclusions: Chiropractic pelvic listings are strongly influenced by positioning of the subject. A few degrees of axial rotation may create apparent misalignments of several millimeters...   Assessment of inflammatory activity in rheumatoid arthritis: a comparative study of clinical evaluation with grey scale and power Doppler ultrasonography - Annals of Rheumatic Diseases The 28 joint count for effusion, synovitis, and PD signal correlated highly with the corresponding 60 joint counts. US findings correlated better with CRP and ESR than clinical measures. Interobserver reliability was better for US findings than for clinical assessment...Conclusion: US is a sensitive method for assessing joint inflammatory activity in RA, complementary to clinical evaluation...   A comparison of fast MRI of hips with and without parallel imaging using SENSE - British Journal of Radiology Conventional imaging was performed in 8 min and 36 s. Images acquired with SENSE were acquired in 5 min and 31 s without a discernible reduction in image quality or a significant quantitative reduction in image signal to noise ratio, contrast to noise ratio or edge enhancement... March 21, 2005   Meniscal Tears with Fragments Displaced in Notch and Recesses of Knee: MR Imaging with Arthroscopic Comparison - Radiology The presence of at least one sign indicative of a meniscal tear with a recess fragment had sensitivities and specificities, respectively, of 64% and 77% for observer 1 and 64% and 76% for observer 2...Conclusions: Meniscal tears with notch and recess fragments are frequently seen at arthroscopy and can be depicted at knee MR imaging with moderate sensitivity and high specificity...   The Diabetic Foot: Initial Experience with 18F-FDG PET/CT - The Journal of Nuclear Medicine Conclusion: 18F-FDG PET can be used for diagnosis of diabetes-related infection. The precise anatomic localization of increased 18F-FDG uptake provided by PET/CT enables accurate differentiation between osteomyelitis and soft-tissue infection...     March 17, 2005   Cadaveric Study of Sonographically Assisted Percutaneous Release of the A1 Pulley - Plastic and Reconstructive Surgery The purpose of this study was to assess the value of using intraoperative sonography to assist percutaneous release of the A1 pulley in cadavers. By detailed sonographic examination and anatomical exploration, the authors determined the correlation of the actual A1 and A2 pulleys (and adjacent neurovascular bundles not visualized by sonography) to the clearly visualized flexor tendons and the metacarpophalangeal joint...   Statin use, OA may be joined at hip in women age 65 and older - Geriatrics Treatment with statins may be associated with an increased risk of radiographic hip osteoarthritis (RHOA) in new cases, but does not appear to negatively affect progression of disease in patients who already have been diagnosed.Radiographs were taken at baseline and at an 8-year follow-up in 5,674 women age 65 and older from the Study of Osteoporotic Fractures... March 16, 2005   Quantitative assessment of thinning of the subscapularis tendon in recurrent anterior dislocation of the shoulder by use of magnetic resonance imaging - Journal of Shoulder and Elbow Surgery It is known that thinning and lengthening of the subscapularis tendon occur in shoulders with recurrent anterior dislocation. However, no studies have been performed to quantify the morphologic changes of the subscapularis tendon under such conditions. We retrospectively measured the thickness and cross-sectional area of the subscapularis tendon by use of magnetic resonance imaging in 22 shoulders in 11 patients with unilateral recurrent anterior dislocation of the shoulder...   Successful treatment of a chronic post-traumatic 5-year-old osteoporotic vertebral compression fracture by percutaneous vertebroplasty - British Journal of Radiology Osteoporotic vertebral compression fracture (VCF) is a frequently encountered clinical problem associated with chronic pain and disability. Conservative treatment in the form of bed rest, pain control and bracing may create a vicious circle, in which reduced activity leads to further reduction in bone density and fracture risk. Percutaneous vertebroplasty (PVP) is an accepted treatment modality for osteoporotic vertebral body collapse present for less than 1 year, vertebral myeloma, haemangioma, metastasis and recent traumatic fractures...     March 11, 2005   Magnetic resonance imaging evidence of tendinopathy in early rheumatoid arthritis predicts tendon rupture at six years - Arthritis & Rheumatism Conclusion: MRI can be used to quantify tendinopathy at the wrist in RA patients. High scores in early disease were predictive of tendon rupture in a small group of patients, but further studies are required to determine whether this has clinical relevance...   Chiropractic treatment of lumbar spine synovial cysts: A report of two cases - Journal of Manipulative and Physiological Therapeutics Conclusion: Chiropractic distraction manipulation and physiological therapeutic care relieved 2 patients with low back and radicular pain attributed to MRI-confirmed synovial cysts of the lumbar spine. This treatment may be an initial conservative treatment option for synovial cysts with careful patient monitoring for progressive neurologic deficit which would necessitate surgery... March 10, 2005   Detection of Erosions in the Rheumatoid Hand; A Comparative Study of Multidetector Computerized Tomography versus Magnetic Resonance Scanning - Journal of Rheumatology Conclusion: Most erosions were detected using both modalities, but erosion scores were higher on CT than MR scans, especially at the metacarpal bases. It is possible that small erosions in some regions are more easily detected by CT because of its ability to clearly delineate cortical bony margins...     March 09, 2005   A comparison of the semiflexed (MTP) view with the standing extended view (SEV) in the radiographic assessment of knee osteoarthritis in a busy routine X-ray department - Rheumatology Conclusions: Even when radiographs are taken in a busy National Health Service radiography department, measurement of JSW from the MTP view is more reproducible than from the SEV view, the MTP view gives a slightly lower measurement of JSW, and there is no advantage in using either view in recording osteophyte grade. We recommend the wider adoption of the MTP method... March 08, 2005   A Case of Brucella Spondylodiscitis with Extended, Multiple-level Involvement - Southern Medical Journal Brucellosis is a zoonosis that affects several organs and has a protean presentation. The authors report the case of a 61-year-old male patient with brucellar spondylodiscitis involving several vertebrae and a paravertebral abscess localized in the erector spinae muscle. Diagnosis was made by positive blood culture and MRI. No relapse was seen with a combined treatment (doxycycline/rifampin) for 3 months, followed by doxycycline alone for 6 months. Almost all radiologic findings disappeared at the end of a 1-year follow-up without any further treatment... March 04, 2005   Estimation of Transverse Plane Pelvic Rotation Using a Posterior-Anterior Radiograph - Spine Transverse plane pelvic rotation up to 20[degrees] is accurately reflected nearly linearly by L/R SI-ASIS ratios...Conclusions: Bony pelvis landmarks visible on coronal plane radiographs can be used to estimate transverse plane pelvic rotation, but precise conversion to degrees rotation requires additional information on specific patient pelvic morphology...   Osteonecrosis of the Patella: Diagnostic Imaging Perspective - Journal of Computer Assisted Tomography Disability from knee dysfunction has important implications on a patient's performance of simple day-to-day tasks, work-related duties, and leisure activities, including sports. Diagnostic imaging is of fundamental importance in the clinical evaluation of the patient with knee pain. The use of magnetic resonance imaging (MRI) for the assessment of knee pain and dysfunction has increased over the past few years as orthopedic surgeons and radiologists have familiarized themselves with the unique advantages of this modality...     March 03, 2005   Radiography : Accuracy of radiographers' reports in the interpretation of radiographic examinations of the skeletal system: a review of 6796 cases - Radiography Conclusion: This study provides further evidence that radiographers are able to report on A/E plain film examinations of the musculo-skeletal system to a very high standard. It also demonstrates that, in terms of overall accuracy between reports on A/E and non-A/E referrals, any differences are negligible... March 02, 2005   Glenoid Dysplasia: Incidence and Association with Posterior Labral Tears as Evaluated on MRI - American Journal of Roentgenology Conclusions: In our study population, we found that moderate to severe glenoid dysplasia is not a rare entity as seen on MRI, with an incidence of 14.3%. Furthermore, we found that there is a statistically significant increase in the incidence of posterior labral tears associated with shoulders with moderate or severe glenoid dysplasia compared with those shoulders with no dysplasia or mild dysplasia as evaluated on MRI...