September 02 News Headlines

These are radiology news updates from other sites

Date this page was last updated: 01/07/2007 03:02:12 PM

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September 25, 2002   Fluctuation of cardiac size on radiographs during a cardiac cycle: re-examination with magnetic resonance imaging - Radiography Conclusion: Although the fluctuation of the size of the projected cardiac silhouette during a cardiac cycle was statistically significant, the fluctuation magnitude of 2% indicated clinical acceptability of chest radiography without electrocardiographic gating...   September 20, 2002   Correlation of Radiographic, Clinical, and Patient Assessment of Shoulder Balance Following Fusion Versus Nonfusion of the Proximal Thoracic Curve in Adolescent Idiopathic Scoliosis - Spine Conclusion. The clavicle angle, not T1 tilt, upright proximal thoracic, or side-bending proximal thoracic Cobb, provided the best preoperative radiographic prediction of postoperative shoulder balance. In each of the four groups, postoperative shoulder balance and clinical appearance also improved and correlated with patient postoperative assessments...   A Multicenter Study Analyzing the Relationship of a Standardized Radiographic Scoring System of Adolescent Idiopathic Scoliosis and the Scoliosis Research Society Outcomes Instrument - Spine Conclusion. The Cobb angle measure of the major deformity has a small, but statistically significant, correlation with the reported Total Pain, General Self-Image, and General Function as measured by the Scoliosis Research Society outcomes instrument. None of the radiographic measures in this population correlated with postoperative domain scores of the Scoliosis Research Society outcomes tool...   Radiographic analysis of pisotriquetral joint and pisiform motion - Journal of Hand Surgery COnclusion: These views and parameters are useful for evaluating patients with PT joint injury and disease...   Retrospective correction of the heel effect in hand radiographs - Medical Image Analysis Conclusion: The method iterates between background segmentation and heel effect correction until convergence. We illustrate the performance of the method on flat field and phantom images and demonstrate its robustness on a database of 137 diagnostic hand radiographs...   Real-time endoarticular ultrasound imaging of the TMJ-a new diagnostic possibility? - International Journal of Oral and Maxillofacial Sugery Conclusion: The combination of arthroscopy and ultrasound imaging provides more information on position, movement, and pathological changes in joint structures. Although all of the advantages, disadvantages, indications, and complications of this new diagnostic procedure are not yet clear, the authors consider this new method a useful diagnostic procedure for TMJ imaging...

September 19, 2002   Hermansky-Pudlak Syndrome: Radiography and CT of the Chest Compared with Pulmonary Function Tests and Genetic Studies - American Journal of Roentgenology Conclusion. high-resolution ct provides a good radiologic monitor of disease status and progression in patients with hermansky-pudlak syndrome and correlates well with patient age, extent of pulmonary dysfunction, and genetic findings...   Quantification of Skeletal Involvement in Adults with Type I Gaucher's Disease: Fat Fraction Measured by Dixon Quantitative Chemical Shift Imaging as a Valid Parameter - American Journal of Roentgenology Conclusion. the fat fraction of the lumbar spine when measured with dixon qcsi is associated with the occurrence of bone complications. it may, therefore, be a clinically useful parameter...   Radiologic Manifestations of Proximal-Type Epithelioid Sarcoma of the Soft Tissues - American Journal of Roentgenology Conclusion. the chest wall, inguinal region, thigh, and perineum were the most common sites of the disease. tumors exhibited multilobulated contours in 87.5% of the patients, which may be suggestive of this tumor type. nodal involvement was identified on ct and mr imaging and confirmed pathologically in 62.5% of the patients. although ct or mr findings are nonspecific, proximal-type epithelioid sarcoma shows a multinodular configuration and admixes with regional lymph node metastasis on imaging studies...   September 18, 2002   Diagnostic imaging assessment of temporomandibular joint pain - Der Schmerz Conclusion: In the literature there exist some references to and indications for an association between TMJ pain and structure-based findings on TMJ images, i.e. morphology of the condyle, condyle-fossa relationship, form and position of the disc, signs of effusion of the upper resp. lower joint compartment, bone marrow signal abnormalities of the condyle, signal characteristics of the retrodiscal tissue. Despite some hints the relation between TMJ pain and so-called abnormalities on TMJ images remains unclear, complex and little predictive in individual cases...   September 13, 2002   Power Doppler sonography in the assessment of synovial tissue of the knee joint in rheumatoid arthritis: a preliminary experience - Annals of Rheumatic Diseases Conclusion: PDS may be a valuable tool to detect fractional vascular volume and to assist clinicians in distinguishing between inflammatory and non-inflammatory pannus. The transit of microbubbles of ultrasound contrast across a tissue can be used to estimate haemodynamic alterations and may have a role in assessing synovial activity and the therapeutic response to treatment of synovitis of the knee joint...   Prospective two year follow up study comparing novel and conventional imaging procedures in patients with arthritic finger joints - Annals of Rheumatic Diseases Conclusion: Despite clinical improvement and a regression of inflammatory soft tissue lesions, erosive bone lesions were increased at the two year follow up, which were more pronounced with 3D MRI and less pronounced with US. The results of our study suggest that owing to the inadequate depiction of erosions and soft tissue lesions, conventional radiography alone has limitations in the intermediate term follow up of treatment. US has a high sensitivity for depicting inflammatory soft tissue lesions, but dynamic 3D MRI is more sensitive in differentiating minute erosions...   Trans-Atlantic hospital agreement in reading first day radiographs of clinically suspected scaphoid fractures - Archives of Orthopaedic and Trauma Surgery Conclusion: We could not detect differences in performance due to location of the readers' hospital or institution of training. The use of more sensitive techniques should be restricted to patients with negative or equivocal radiographs in clinically suspected scaphoid fractures...

September 11, 2002   The Relation Among Spinal Geometry on MRI, Paraspinal Electromyographic Abnormalities, and Age in Persons Referred for Electrodiagnostic Testing of Low Back Symptoms - Spine Conclusion: The radiologist’s overall impression is more accurate than axial image measurements in predicting paraspinal denervation. A combination score of the smallest two levels is the most accurate, perhaps relating to the vascular pathophysiology of stenosis. There is more denervation with increasing age in this symptomatic population...   Reliability and Validity of Lumbosacral Spine Radiograph Reading by Chiropractors, Chiropractic Radiologists, and Medical Radiologists - Spine Conclusion: Small differences with little clinical relevance were found. All the professional groups could adequately detect contraindications to chiropractic treatment on radiographs. For this indication, there is no reason to restrict interpretation of radiographs to medical radiologists. Good professional relationships between the professions are recommended to facilitate interprofessional consultation in case of doubt by the chiropractors...   Pseudogout Attack of the Lumbar Facet Joint: A Case Report - Spine Conclusion: Pseudogout attack of the lumbar facet joint is rare, but this clinical entity should be added to the differential diagnosis of acute low back pain...   September 09, 2002   Relationship between radiographic measurements of reconstructed hip joint position and the Trendelenburg sign - Journal of Arthroplasty Conclusion: The reconstructed hip joint position is crucial to improve hip abductor function...   Interobserver and intraobserver variability in radiographic assessment of osteolysis - Journal of Arthroplasty Conclusion: In assessing a patient for osteolysis, it is more accurate to analyze a series of radiographs than the most recent radiograph...   September 06, 2002   A comparison of conventional panoramic radiographs with volumetric computed tomography images in the preoperative assessment of impacted mandibular third molars - Journal of Oral and Maxillofacial Surgery Conclusion: The results showed that the VCT paraxial images gave a significantly clearer perception of the mandibular nerve than conventional panoramic radiographs. However, conventional panoramic radiographs were shown to be better than the VCT reconstructed panoramic images and were therefore an invaluable tool in the “expert-derived” assessment and posed the potential for identifying the need for further VCT diagnostic procedures...   Use of ultrasound to assess healing of a mandibular distraction wound - Journal of Oral and Maxillofacial Surgery Conclusion: The results of this feasibility study indicate that ultrasound is potentially useful for the assessment of bone formation in distraction osteogenesis wounds...   Foot Fractures Frequently Misdiagnosed as Ankle Sprains - American Family Physician Conclusion: Most ankle injuries are straightforward ligamentous injuries. However, the clinical presentation of subtle fractures can be similar to that of ankle sprains, and these fractures are frequently missed on initial examination. These fractures can often be managed nonsurgically with nonweight-bearing status and a short leg cast worn for approximately four weeks. Delays in treatment can result in long-term disability and surgery...

September 05, 2002   Agreement between predicted risk and prevalence of Down syndrome in first trimester nuchal translucency screening - Prenatal Diagnosis Conclusion: A significant correlation between predicted and observed prevalences was noted, thus demonstrating that risk estimates for Down syndrome based on first trimester nuchal translucency screening are accurate...   September 04, 2002   Bone Injury Associated With Anterior Cruciate Ligament and Meniscal Tears: Assessment With Bone Single Photon Emission Computed Tomography - Investigative Radiology Results of the study suggest that bone SPECT is valuable in acute knee trauma for assessment of ACL, meniscal tears, or both and for detection of associated bone injury...   September 03, 2002   Spinal Epidural Abscess-Experience with 46 Patients and Evaluation of Prognostic Factors - Journal of Infection Conclusion: Localized back pain in a febrile patient with significant risk for epidural abscess warrants an immediate magnetic resonance imaging examination. The presence of thrombocytopenia, extremely elevated ESR, or evidence of spinal cord compression should prompt aggressive treatment...   Correction of Combined Angular and Rotational Deformities by the Ilizarov Method - Clinical Orthopedics and Related Research Deformities of the lower extremities are often a combination of angular and rotational components. The rotational component of combined deformities may be difficult to measure using plain radiography. Based on the current study, the computed tomography rotational malalignment test was developed...   Detection of Osteoporosis by Dual Energy X-ray Absorptiometry (DXA) of the Calcaneus: Is the WHO Criterion applicable? - Calcified Tissue International The study assessed the precision, sensitivity, and specificity of a recently developed peripheral dual-energy X-ray absorptiometry (DXA) scanner, applied to the calcaneus, in the identification of individuals with osteoporosis at axial sites by DXA...   The Radiologic Prevalence of Patellofemoral Osteoarthritis - Clinical Orthopedics and Related Research Osteoarthritis is more common in the patellofemoral joints of men and women than previously documented and only can be properly assessed using a skyline radiograph...   Biomechanical Monitoring of Healing Bone Based on Acoustic Emission Technology - Clinical Orthopedics and Related Research The yield strength monitored by acoustic emission testing increased with the time of healing. The external fixator could be removed safely and successfully in 97% of the patients. Thus, the acoustic emission method has good potential as a reliable method for monitoring the mechanical status of healing bone...