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CT fluoroscopy guides spinal interventionsSpinal disorders are an increasing cause of disability and a growing therapeutic challenge. CT fluoroscopy is a reliable technology that enables basic spine interventions to be performed with great precision and more difficult procedures to be carried out with safety and confidence. This technique decreases risk and maximizes patient comfort during such procedures.
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Multislice CT reveals coronary artery anomaliesCoronary artery anomalies are rare, occurring in 0.3% to 1% of the general population. But the clinical importance of these anomalies is significant. Coronary artery anomalies have been found to be a major contributing factor in sudden cardiac deaths in young adults.
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U.S. patients miss benefits of ultrasound contrast mediaContrast-enhanced ultrasound for abdominal applications in radiology was first approved in Canada in 2001. Although reimbursement issues have prevented its general dissemination and adoption, ample publications describe the benefits and applications of this exciting and robust technique.
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Critical hip disorders show upon spinal imaging studiesWhen patients are suffering from back pain and radiating pain in their lower extremities, it is usual to suspect that the symptoms are caused by a spinal disorder.
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CT and MRI show complexparanasal sinus anatomyInflammation of the upper airways is most often due to the common cold. CT and MRI show complexparanasal sinus anatomy.
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Social Media Matters for RadiologistsCHICAGO - Radiology practices should establish a presence on sites like Facebook, LinkedIn and Twitter. Here’s why.
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Workflow picks up benefits from speech recognition toolsMany radiology departments in hospitals and private imaging centers are going digital with the installation of a radiology information system (RIS) and/or picture archiving and communications system (PACS). Departments seem to place less emphasis, however, on automated speech recognition as part of the digital radiology enterprise.
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Singapore meeting incorporates nuclear medicine updateThe annual joint scientific meeting of the Singapore Radiological Society and the College of Radiologists, Singapore, was expanded this year to include the Singapore General Hospital nuclear medicine update. This allowed a greater inclusion of topics pertaining to nuclear medicine and radiation oncology, with the theme of the meeting being “imaging and therapy in the area of molecular medicine.”
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Silent Non-traumatic Extensive Aortic DissectionA 40-year-old male presented at the ER with chest discomfort and tacchypnia. No abnormal radiological findings could be detected on the chest X-ray. On examination ischemic changes on the right lower limb, with ECG changes were noted.
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Dynamic contrast-enhanced MR imaging finally comes of ageTumors require new blood vessels in order to grow beyond a few millimeters in size. Once this "angiogenic switch" is thrown, a series of events occur that lead to the progression and spread of cancer. The vessels formed by tumors are not only larger and more numerous but also more permeable than normal vessels1 (Figure 1). Thus, when a patient with a tumor is injected with a gadolinium-chelate MR contrast agent, the tumor enhances more than the surrounding normal tissue.
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Tuberculous PericarditisAn 18-year-old Nigerian male with a history of previous exposure to tuberculosis, presented to our department for a mild, subcontinuous, fever and dyspnea.
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MR, CT imaging offer answers to questions about renal massThe widespread use of cross-sectional imaging techniques means that renal masses are now a common incidental finding. The term renal mass covers a diverse group of pathologic entities, including inflammatory, vascular, and benign tumors and neoplastic lesions. Most renal masses are simple cysts that can be characterized easily and require no treatment or follow-up. But approximately 25% to 40% of all renal cell carcinomas are diagnosed after the unexpected discovery of a renal mass.1 Around 85% of these renal cancers will be adenocarcinomas. Most of the others will be transitional cell carcinomas of the renal pelvis.
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CTA trauma scan detects blunt carotid artery injuryMultislice CT has changed the initial management of trauma patients with multiple injuries and now plays a central role in their primary diagnoses. Many radiology departments have implemented whole-body CT scanning for polytrauma patients.
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Attenuation physics rule DE imagingX-ray matter interactions in the diagnostic imaging energy range are dominated by photoelectric and Compton effects. Both interactions increase in proportion to electron density, which is proportional to physical density. In conventional CT imaging at 120 kVp to 140 kVp, the Compton effect predominates, and hence image quality is primarily governed by physical density.
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40-slice scanners boost neuro CT angiographyThe introduction of 40-slice CT scanners has opened up new possibilities for CT angiography of the supra-aortal vasculature. Imaging can be performed with even thinner slices, and more rapidly, than on 16-slice systems, and images have higher resolution. Conventional protocols for imaging the brain and its arterial supply must be adjusted to profit from these parameters.
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Image IQ: Food “Sticks” in Throat74-year-old woman complains of food “sticking” in her throat.
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Case Of The MonthA 13-year-old girl presents with abdominal pain, right lower quadrant tenderness, guarding, elevated lipase, and a history of gastroesophageal reflux disease.
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MR imaging throws light on causes of epilepsyAn epileptic seizure is the external manifestation of a functional cerebral disorder that can affect 10% of the world's population. Virtually any brain abnormality can irritate vulnerable neurons and produce epileptic seizures. The nature and characteristics of the seizure depend on the part of the brain involved in the disturbance.
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MR imaging throws light on causes of epilepsyAn epileptic seizure is the external manifestation of a functional cerebral disorder that can affect 10% of the world's population. Virtually any brain abnormality can irritate vulnerable neurons and produce epileptic seizures. The nature and characteristics of the seizure depend on the part of the brain involved in the disturbance.
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Multislice CT helps reveal lower limb pathologyPeripheral arterial occlusive disease is a chronic and progressive disease that is common in the Western world.
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MSCT moves ahead of DSA for peripheral arterial diseasePeripheral arterial occlusive disease is a chronic and progressive disease that is common in the Western world.
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Percutaneous ablation treats bone tumors safely, effectivelyAblation techniques have rapidly evolved and have been proved effective for treatment of benign skeletal lesions and, more recently, for palliation of painful metastatic skeletal disease. Treatment of primary bone lesions is largely restricted to benign lesions, such as osteoid osteomas, as a single-modality treatment or as an adjunct to surgical resection.1-4 The use of ablation techniques for treatment of metastatic disease has developed because of the often disabling pain cancer patients experience. This pain can persist despite use of conventional therapies, including external-beam radiation and opioid analgesics.5-8
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Imaging proves clinical value in cases of human toxocariasisHuman toxocariasis, or visceral larva migrans, is a zoonotic disease caused by tissue migration of the nematode larva Toxocara canis, a dog ascaris
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Focused ultrasound ablation offer prostate cancer optionProstate cancer is a leading cause of cancer death inU.S. men, second only to lung cancer. During2008, an estimated 186,320 new cases of prostatecancer will be diagnosed in the U.S.
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Environment aims to enrichinterdepartmental teamworkEnhancing collaboration with referring physicians is the focus of a major renovation currently under way at the University of Virginia Health System's radiology department.
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Diagnostic imaging utilization slowsThe dramatic growth of Medicare-related medical imaging utilization-which drew the attention of rate-cutting federal policymakers and the wrath of politicians on Capitol Hill in the mid-2000s-has ended, according to a study from Thomas Jefferson University in Philadelphia.
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MRI finds growing clinical applicationsFew MR applications have held greater promise and encountered bigger challenges than cardiac imaging. MR accurately depicts cardiac structure, function, perfusion, and myocardial viability with a capacity unmatched by any other imaging modality.
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CT angiography helps planendovascular aneurysm repairCT angiography of the abdominal aorta is a wellacceptedmodality in the evaluation of bothaneurismal and occlusive disease. In patientswith abdominal aorta aneurysms, it has a major rolein all stages of evaluation.
