September 04 News Headlines

These are radiology news updates from other sites

Date this page was last updated: 01/07/2007 03:02:50 PM

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September 30, 2004   Apert's syndrome - Applied Radiology A 7-year-old boy with a family history of �strange hands� presented to an orthopedic clinic with a complaint of foot pain. After the intial foot films were obtained, a full skeletal survey revealed multiple anomalies... September 29, 2004   Acute calcific tendinitis of the longus colli - Applied Radiology The patient is a 34-year-old man who presented in the emergency department with cervical pain aggravated by movement and associated with odynophagia. On physical examination, there was limited range of motion and pain exacerbation on rotation, flexion, and extension. Oropharynx was clear without erythema, exudate, or ulceration. No regional lymphadenopathy was noted. The patient was afebrile and denied trauma or recent upper respiratory tract infection...

September 28, 2004   Reference level for patient dose in dental skull lateral teleradiography - British Journal of Radiology The present work describes an experiment to obtain a local reference dose value in lateral skull teleradiography for dental applications. The reference value was based on patient measurements in seven dental X-ray units, using thermoluminescent chips, and measurements on a rubber globe filled with water at another 78 installations. Dosemeters were located initially in the head and neck of a human phantom to select the most suitable locations, and on the cephalostat of the X-ray unit at two appropriate locations, which did not interfere with the patient or with the usual imaging routine...   Normative data for ultrasound measurement of the calcaneus within different female ethnic groups - British Journal of Radiology The purpose of this study was to generate normative broadband ultrasound attenuation data for UK resident Indian-Asian, African-Caribbean and Chinese women, aged 20�80 years, using the McCue Cubaclinical II device. Additionally, comparisons were made against available Caucasian data previously collected by the authors. Exclusions were: use of hormone replacement therapy, corticosteroids or thyroxine for more than 6 months; menopause before the age of 45 years; oophrectomy; lactation within the preceding year; rheumatoid arthritis or a previous osteoporotic fracture... September 24, 2004   Assessment of Fat Content in Supraspinatus Muscle with Proton MR Spectroscopy in Asymptomatic Volunteers and Patients with Supraspinatus Tendon Lesions - Radiology To evaluate proton magnetic resonance (MR) spectroscopy in the assessment of lipid content of the supraspinatus muscle in asymptomatic volunteers and patients with supraspinatus tendon lesions...Conclusion: Proton MR spectroscopy is suitable in the assessment of apparent lipid content of rotator cuff muscles... September 23, 2004   Development and Evaluation Process of a Pediatric Long-Bone Fracture Classification Proposal - European Journal of Trauma Conclusion: The systematic implementation of pilot agreement studies and use of Latent Class Modeling methodology for the development and evaluation of fracture classification systems in orthopedics are encouraged... September 22, 2004   Radiographic, CT, and MR Imaging Features of Dedifferentiated Chondrosarcomas: A Retrospective Review of 174 De Novo Cases - Radiographics Up to 11% of chondrosarcomas may undergo regional anaplastic change, resulting in a high-grade noncartilaginous sarcoma arising within a typically low-grade chondrosarcoma. Known as dedifferentiated chondrosarcomas, these tumors are highly malignant with a very poor prognosis. The most important factor affecting survival is an accurate preoperative diagnosis...   Accuracy of Pedicle Screw Placement in Thoracic Spine Fractures: Part I: Inter- and Intraobserver Reliability of the Scoring System - European Journal of Trauma Conclusion: The inter- and intraobserver reliability of the presented scoring system was substantial. The scoring system is an appropriate tool for determination of accuracy of pedicle screw placement. The scoring system may be helpful in terms of a better comparability of different studies and the decision on pedicle screw revision... September 21, 2004   Musculoskeletal and radiological manifestations of childhood acute leukaemia: a clinical review - Haema Leukaemia affect about 40 children per million annually and is the most common form of childhood cancer. Acute leukaemia is characterized by a diverse group of clinical manifestations that are rarely seen in other diseases. Various radiological manifestations have been described in association with childhood leukaemia, metaphyseal bands, osteolytic lesions, osteosclerosis, osteoporosis and periosteal new bone formation, but none was found to be pathognomonic...   Metacarpophalangeal Joints at US in Asymptomatic Volunteers and Cadaveric Specimens - Radiology To determine normal anatomy of metacarpophalangeal (MCP) joints at ultrasonography (US) and to compare findings with anatomic and histopathologic findings...Conclusion: US provides detailed information about normal anatomy of nonthumb MCP joints... September 20, 2004   Prediction Models for Evaluation of Total-Body Bone Mass With Dual-Energy X-Ray Absorptiometry Among Children and Adolescents - Pediatrics Conclusion: These models, including known determinants of bone mass and of bone measurements with DXA, provide an evaluation of pediatric bone mass that proceeds in steps from level 1 to level 3. The outcomes were different for patients at risk for compromised bone mass, compared with healthy children, with specific patterns for each medical disorder. We propose an algorithm for evaluation of bone measurements that follows levels 1 to 3...   Ultrasound guidance for a lateral approach to the sciatic nerve in the popliteal fossa - Anaesthesia Descriptions of the use of ultrasound for nerve location have focused on upper limb blocks. We present a case in which ultrasound imaging was used for a lateral approach to the sciatic nerve in the popliteal fossa. Ultrasound images taken proximal to the popliteal crease showed tibial and common peroneal nerves as round hyperechoic structures superficial and lateral to the tibial artery...

September 20, 2004   Prediction Models for Evaluation of Total-Body Bone Mass With Dual-Energy X-Ray Absorptiometry Among Children and Adolescents - Pediatrics Conclusion: These models, including known determinants of bone mass and of bone measurements with DXA, provide an evaluation of pediatric bone mass that proceeds in steps from level 1 to level 3. The outcomes were different for patients at risk for compromised bone mass, compared with healthy children, with specific patterns for each medical disorder. We propose an algorithm for evaluation of bone measurements that follows levels 1 to 3...   Ultrasound guidance for a lateral approach to the sciatic nerve in the popliteal fossa - Anaesthesia Descriptions of the use of ultrasound for nerve location have focused on upper limb blocks. We present a case in which ultrasound imaging was used for a lateral approach to the sciatic nerve in the popliteal fossa. Ultrasound images taken proximal to the popliteal crease showed tibial and common peroneal nerves as round hyperechoic structures superficial and lateral to the tibial artery... September 17, 2004   New classification of nasal bone fractures using CT and its clinical application - Otolaryngology Head and Neck Surgery Patient and doctor satisfactions were statistically lower in severe fractures and septal fractures. In cases of severe fracture and septal fractures (types II, III,III, IV), closed reduction leaves disappointing results.... Conclusion: According to new classification of nasal fracture by CT scans, physicians can forecast surgical operation results and receive help in deciding surgical procedures...   Cancellous bone changes in the radius of patients with rheumatoid arthritis: a cross-sectional quantitative macroradiographic study - Rheumatology Conclusion: FSA quantified radiographic bone loss in the distal radius of RA patients with increasing radiographic severity in terms of lower fractal signatures compared with the non-arthritics. Disease-related bone loss was demonstrated by FSA to involve mainly vertical trabeculae at the periarticular osteopenic, periarticular erosion and the mid-metaphyseal sites indicating directionality of bone resorption in RA...

September 15, 2004   Comparison of Different Quantitative Approaches to 18F-Fluoride PET Scans - The Journal of Nuclear Medicine Conclusion: The results of this study show that 18F-fluoride metabolic values as well as changes in bone metabolism measured by SUV and Patlak analysis were strongly correlated with NLR findings. The high 95% range of normal change of SUV in limb bones, however, indicates that this parameter is of limited value in areas with low metabolic activity. The range of spontaneous bone metabolic rate fluctuations presented in this study may be used as an estimate for assessing changes in bone metabolic activity, and the normal values for limb bones provide a basis for further studies on 18F-fluoride bone metabolism... September 14, 2004   'Dixon' technique improves 3T musculoskeletal MR - Diagnostic Imaging Fat and water separation techniques in low- and midfield musculoskeletal MR scanning rely heavily on field homogeneity and cannot be used simultaneously. Scanning at 3T can overcome such constraints, according to Stanford University researchers. Dr. Scott B. Reeder and colleagues at Stanford and GE Medical Systems Applied Science Lab-West imaged the knees and ankles of five healthy volunteers. They combined steady-state free precession imaging at 3T with a method known as the Dixon technique, which allows for fat-water decomposition through the collection of multiple images at short echo time increments... September 13, 2004   Sarcoidosis of the thoracic and lumbar spine: Imaging findings with an emphasis on magnetic resonance imaging - Australasian Radiology Vertebral sarcoidosis is exceedingly rare with only a few cases reported in the published literature. The case of a 40-year-old man with vertebral sarcoidosis is presented, emphasizing the role of MRI and biopsy in confirming the diagnosis. A brief review of the published literature is also presented...   Cherubism: Review of four affected members in a Kuwaiti family - Australasian Radiology Cherubism is a rare autosomal dominant fibro-osseous disorder of childhood, mostly limited to the maxilla and mandible. Extra-cranial skeletal involvement is rare. Post-pubertal involution of the process and jaw remodeling occurs in adulthood. The aim of this case report is to present four cherubs, a father and his three daughters, in whom the diagnosis was made based on history, physical examination, laboratory tests and typical radiological features. The imaging characteristics are discussed and the published literature is reviewed...

September 09, 2004   The role of three-dimensional ultrasound in visualizing the fetal cranial sutures and fontanels during the second half of pregnancy - Ultrasound in Obstetrics and Gynecology Conclusions: 3D ultrasound can be a reliable technique for visualizing most fetal cranial sutures and fontanels. By performing a sagittal and a transverse scan, most of the sutures and fontanels can be made visible during the second half of pregnancy. Visualization depends on gestational age... September 07, 2004   Monitoring of skeletal progression of prostate cancer by GFP imaging, X-ray, and serum OPG and PTHrP - The Prostate Pamidronate treatment exhibited anti-tumor effects that were reflected by decreases in serum PTHrP, OPG, and by GFP and radiological imaging procedures. Imaging of GFP expression enables real-time monitoring of tumor growth in the bone. PTHrP and OPG may be useful as tumor biomarkers for PCa that has metastasized to bone. This novel human PCa model can be used to study the clinical potential of diagnostic and therapeutic modalities in the skeletal progression of PCas...

September 03, 2004   Valgus and varus deformity after wide-local excision, brachytherapy and external beam irradiation in two children with lower extremity synovial cell sarcoma: case report - BMC Cancer Conclusions: Despite good functional outcomes, progressive deformity in both patients required epiphysiodesis more than 3 years after initial management. There is a dearth of information related to the effects of radiation therapy on the musculoskeletal system in children. Because limb-sparing approaches are to be highlighted in the next generation of cooperative group protocols for children with musculoskeletal tumors, documentation of the effects of surgery and radiation therapy will lead to improved decision making in the selection of the best treatment approach and in the follow-up of these patients... September 02, 2004   Comparative 18F-FDG PET of Experimental Staphylococcus aureus Osteomyelitis and Normal Bone Healing - The Journal of Nuclear Medicine PET using 18F-FDG is a promising imaging modality for bone infections, based on intensive consumption of glucose by mononuclear cells and granulocytes. The method may have limitations in distinguishing uncomplicated bone healing from osteomyelitis. ... September 01, 2004   Prenatal diagnosis of fetal skeletal dysplasias by combining two-dimensional and three-dimensional ultrasound and intrauterine three-dimensional helical computer tomography - Ultrasound in Obstetrics and Gynecology Conclusion: 3D-US and 3D-HCT seem to be useful complementary methods to 2D-US, and may improve accuracy of the prenatal diagnosis of skeletal disorders. These new imaging technologies may have a role in the prenatal multidisciplinary approach to the diagnosis of skeletal dysplasias ...