October 01 News Headlines

These are radiology news updates from other sites

October 31, 2001   Primary Treatment of Chondroblastoma with Percutaneous Radio-frequency Heat Ablation: Report of Three Cases - Radiology The authors evaluated three patients in whom minimally invasive percutaneous radio-frequency heat ablation was used to treat pathologically proven chondroblastoma to determine whether this treatment demonstrated long-term success. The authors found that this approach may be an effective alternative to surgical intervention in some case...   Calcific Shoulder Tendinitis: Treatment with Modified US-guided Fine-Needle Technique - Radiology This modified US-guided fine-needle technique for calcified tendinitis of the shoulder appears to be an effective therapy and was less aggressive than previously described percutaneous techniques...   Intermetatarsal Spaces: Analysis with MR Bursography, Anatomic Correlation, and Histopathology in Cadavers - Radiology MR bursography provided detailed information about the intermetatarsal anatomy, especially the intermetatarsal bursae...   Patello-femoral tracking in the weight-bearing knee: a study of asymptomatic volunteers utilising dynamic magnetic resonance imaging: a preliminary report - Knee Surgery, Sports Traumatology, Arthroscopy These results indicate that mild lateral tilting and displacement can be normal phenomena in the weight-bearing knee in early flexion and should not necessarily be taken as evidence of abnormal tracking in symptomatic patients. Lateral to medial movement of the patella occurs during normal knee flexion. In addition, imaging in the weight-bearing knee can provide valuable information not gained by imaging during passive knee flexion...   Cervical Spine: Postmortem Assessment of Accident Injuries—Comparison of Radiographic, MR Imaging, Anatomic, and Pathologic Findings - Radiology Soft-tissue and intervertebral disk and ligament injuries account for 89% (25 of 28) of posttraumatic cervical spine lesions detected on postmortem images. Occult lesions, including apophyseal joint injuries, were found in clinically noninjured cervical spines. ...   Greater Trochanter of the Hip: Attachment of the Abductor Mechanism and a Complex of Three Bursae—MR Imaging and MR Bursography in Cadavers and MR Imaging in Asymptomatic Volunteers - Radiology MR imaging and bursography provide detailed information about the anatomy of tendinous attachments of the abductor muscles and the bursal complex of the greater trochanter...     Imaging of bone in the diagnostics of renal osteodystrophy in children with chronic renal failure - Medical Science Monitor Conclusion: Given the lack of consistency in the results of the tests here presented, an entire panel of available tests should be performed for the comprehensive evaluation of the status of the skeleton...   October 30, 2001   Fixation-based surgery: A new technique for distal radius osteotomy - Computer Aided Surgery The use of a fixation-based technique avoided the complexity of attempting to guide the surgeon to realign a bone fragment in six degrees of freedom of correction, and eliminated the use of X-ray fluoroscopy for achieving the alignment...   Computer-assisted fracture reduction: Novel method for analysis of accuracy - Computer Aided Surgery The methods tested revealed that virtual controlled reduction is nearly as accurate as direct visualization. Reduction control utilizing a motion tracker system reveals accurate 3D information in this simplified reduction setup, and is now used as a standard setup for analyzing realistic fracture models...   October 29, 2001   Measuring the sacral inclination angle in clinical practice: Is there an alternative to radiographs? - Journal of Manipulative and Physiological Therapeutics Conclusions: The method we used to measure sacral inclination with an inclinometer proved to be invalid...   Dysplasia Epiphysealis Hemimelica Of Lateral Aspect Of The Distal Ulnar Epiphysis - Internet Journal of Radiology The purpose of this case report is to report a atypical case of a patient who had the lateral aspect of the distal ulnar epiphysis involved which has not been reported before, review the literature and discuss the management...   MR imaging evaluation of suprascapular nerve entrapment - European Radiology Conclusion: Muscular edema seems to be a more sensitive sign of SSNE than muscle atrophy and fatty changes when compared with EMG results. Magnetic resonance imaging can reach a positive, topographic, and etiologic diagnosis of SSNE...   Posterolateral supporting structures of the knee: findings on anatomic dissection, anatomic slices and MR images - European Radiology Conclusion: Magnetic resonance imaging allows a detailed appreciation of the posterolateral corner of the knee...   Fully automated software to monitor wear in prosthetic knees using fluoroscopic images - European Radiology Conclusion: The computer successfully found the minimum JSW for both compartments in all 54 images. A single case (2% of total) required user interaction to correct for an obvious failure to delineate the prosthesis pin. We document a robust and precise tool for quantifying mJSW to monitor prosthesis wear...   MR-based three-dimensional presentation of cartilage thickness in the femoral head - European Radiology Conclusion: Three-dimensional reconstruction of MRI data is useful for evaluating the distribution of the cartilage thickness of the femoral head objectively... October 26, 2001   Combined asymptomatic congenital anterior and posterior deficiency of the atlas - Pediatric Radiology A rare anomaly of anterior and posterior atlas arch, previously unclassified, is presented...   Assessment of Spinal Kinematics Using Open Interventional Magnetic Resonance Imaging - Clinical Orthopedics and Related Research Conclusion: These measures of motion are in agreement with previous data and suggest that the greatest motion occurs at the L4–L5 level. The use of interventional magnetic resonance imaging for assessing lumbar intersegmental mobility seems promising...   October 23, 2001   Phantom movements and pain An fMRI study in upper limb amputees - Brain These data suggest selective coactivation of the cortical hand and mouth areas in patients with phantom limb pain. This reorganizational change may be the neural correlate of phantom limb pain... October 22, 2001   Patterns of muscle involvement in inclusion body myositis: Clinical and magnetic resonance imaging study - Muscle & Nerve The results emphasize the variability in the clinical phenotype and differential susceptibility of muscles to the disease process in sIBM... October 19, 2001   Two-pedal ergometer for in vivo MRS studies of human calf muscles - Magnetic Resonance in Medicine These results are consistent with the values reported in the literature and show that this ergometer, which is easy to use, is suitable for in vivo spectroscopy research when metabolic steady-state conditions are required...   Periosteal Chondroid Tumors - American Journal of Roentgenology A variable overlap existed in the imaging appearances of benign and malignant periosteal chondroid lesions, with size being the most reliable indicator in distinguishing the two lesions. This and the fact that histologic differentiation of the entities can be difficult, suggests that surgical wide excision may be the most appropriate procedure in treating patients with lesions greater than 3 cm...   MR Imaging of Meniscal Contusion in the Knee - American Journal of Roentgenology Acute trauma to the knee may cause an abnormal signal in the meniscus that does not meet the previously described criteria for a meniscal tear or an intrasubstance degeneration. This abnormal signal could be misinterpreted as a tear because of its contact with the articular surface; this signal is seen most often in our series in the setting of an anterior cruciate ligament tear with adjacent bone contusions. We suggest that this signal may be due to a contusion of the meniscus and that the signal may resolve over time in some patients...   Fast Three-Point Dixon MR Imaging Using Low-Resolution Images for Phase Correction - American Journal of Roentgenology Compared with CHESS, the new fast three-point Dixon sequence with online image reconstruction provides superior fat suppression and lesion conspicuity and can be routinely used in pediatric musculoskeletal imaging...   Congenital Pseudarthrosis of the Tibia in Pediatric Patients - American Journal of Roentgenology MR imaging of congenital pseudarthrosis allows assessment of the type and extension of the disease. It is especially recommended for the evaluation of periosteal and soft-tissue changes near the pseudarthrosis... October 18, 2001   Limited Magnetic Resonance Imaging in Low Back Pain Instead of Plain Radiographs: Experience with First 1000 Cases - Clinical Radiology The majority of patients with LBP are best assessed clinically and imaging is usually not required. In patients with worrying symptoms, MRI with a limited protocol detects a greater number of abnormalities than previously reported studies using plain radiographs and has replaced plain radiography in our hospital. We report our experience with the first 1000 patients and highlight issues such as protocols, detection rates and communication issues...   The Natural History of Disappearing Bone Tumours and Tumour-like Conditions - Clinical Radiology Knowledge of the potential for spontaneous resolution may help in management of these tumour and tumour-like lesions of bone...   October 17, 2001   Fibrocartilaginous mesenchymoma of the distal femur: Case report and literature review - Pathology International A case of a 9-year-old boy with fibrocartilaginous mesenchymoma located in the distal femur is presented...Pathological diagnosis of this very rare tumor may be challenging; the treatment should be wide resection of the tumor...   The Canadian C-Spine Rule for Radiography in Alert and Stable Trauma Patients - JAMA We have derived the Canadian C-Spine Rule, a highly sensitive decision rule for use of C-spine radiography in alert and stable trauma patients. If prospectively validated in other cohorts, this rule has the potential to significantly reduce practice variation and inefficiency in ED use of C-spine radiography...   October 16, 2001   Importance of timing of post-contrast MRI in rheumatoid arthritis: what happens during the first 60 minutes after IV gadolinium-DTPA? - Annals of Rheumatic Diseases This study suggests that MR image acquisition in arthritic knee joints should be performed within the initial approximately 10 minutes after gadolinium contrast injection to achieve the most accurate distinction between synovium and joint fluid but that small time variations are not of major importance to the measured synovial membrane volumes ...   2D/3D sonographic imaging of thanatophoric dysplasia type I at 19 weeks of gestation - Ultrasound in Obstetrics and Gynecology By ultrasound in the second trimester, prenatal diagnosis of skeletal dysplasia can be feasible. However, differentiating this lethal disease from non-lethal skeletal disorders should be done prudently...   Volumetric computerized tomography as a measurement of periprosthetic acetabular osteolysis and its correlation with wear - Arthritis Research In summary, the current study demonstrates both the feasibility of CT imaging of periacetabular osteolysis and the correlation between polyethylene wear and osteolytic volume, providing a potential outcome measure for clinical trials that are designed to examine interventions in this complex disease process...   Delayed closed reduction of rotatory atlantoaxial dislocation in an adult - European Spine Journal In our patient, demonstration by MRI that the transverse ligament was intact led to the decision to use conservative therapy, which proved successful...   Bone mineral status of Polish men in the course of normal ageing - Andrologia The significant discrepancies found between the data presented in this study and reference values probably result from inter-populational differences in the lifestyles of healthy ageing men. The results also confirm that bone density (with its age-related changes in the course of normal male ageing) is one of the biological features characteristic of this particular regional population...   A square to indicate the unstable zone in severe spondylolisthesis - European Spine Journal Through analysis of the modifications of imbalance in the spine and pelvic ring due to surgical correction, this study defines the unstable zone of high-grade dysplastic developmental spondylolisthesis and proposes a simple radiographic method to identify it...