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CAD for pulmonary evaluation approaches mainstay statusCAD no longer stands merely for computer-aided detection. Today's robust software programs make it possible to help characterize, or diagnose, nodules, particularly in the lungs. Current computer-aided technology favors detection, but the ability to diagnose lung nodules based on certain characteristics continues to develop rapidly. It's only a matter of time before computer-aided detection and computer-aided diagnosis become mainstay tools for pulmonary evaluation.
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Swollen CheekCase History: 20-year-old male with originally painless swelling of right cheek that has become painful.
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Paraumbilical Pain, Nausea, VomitingCase History: 35-year-old female presented with pain in the left paraumbilical region for two days, nausea and vomiting.
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Workload measurement comes under scrutinyIncreasing workload is a common trend in radiology departments throughout Europe. The question is, How can we measure it effectively?
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CT report that includes all data boosts benefitsAccurate and reproducible assessment of left ventricular function is crucial for differential diagnosis, risk stratification, treatment planning, and predicting prognosis in patients with heart disease. Evaluation of global and regional LV wall motion, valvular function, myocardial mass, and, in some cases, right ventricular function produces valuable ancillary pieces of clinical information that can be obtained from a contrast-enhanced multislice CT scan.
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X-ray remains mainstay, but advanced imaging gained ground at IRIA-2010The annual meeting of the Indian Radiological and Imaging Association was held at the end of January in Ahmedabad, a historic city in the state of Gujarat. The theme of IRIA-2010 was “Research to Reality.”
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Jaw Pain While ChewingCase History: 24-year-old female with pain while chewing and locking of jaw.
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Increasing Lower Limb WeaknessCase History: 22-year-old female with bilateral lower limb weakness for 25 days.
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Primary Peritoneal MesotheliomaA 56-year-old Vietnam veteran man was admitted with a three-day history of worsening abdominal pain progressing into an acute abdomen. He had past medical history of Hepatitis C, diabetes mellitus, high blood pressure and chronic abdominal pain of unknown etiology. There was no gross bowel pathology by upper endoscopy or colonoscopy early the year of admission.
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Interventional Methods Transform TherapyInterventional radiology has developed tremendously since the term was first coined some 30 years ago.1,2 Its minimally invasive nature has made it suitable for use in emergencies and in cases when even the surgeons do not know where to begin. Radiological procedures rival surgical operations in the treatment of aneurysms (Figure 1).
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Digital imaging makes inroads in orthopedicsThe Oakland Athletics medical and training staff, preparing for spring training prior to the 2004 baseball season, considered the options for obtaining and reviewing radiographic studies. In past seasons, players went by van, five or so at a time, to local imaging facilities and offices in Phoenix and then returned to training. The process was repeated daily until examinations for the 80 or so players were completed. The films were interpreted, filed, or retained at the spring training site for later review by the orthopedists and medical staff and then traveled with the A's to California for the start of the season.
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Imaging provides answersin parasitic infectionsParasitic infections are endemic in developing countries located in tropical and subtropical regions.
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Radiologists brace for fallout from crisis of uninsuredA problem of enormous proportions in the U.S. has grown even larger during the past two years. The ranks of the uninsured have increased every year, recently passing the 20% threshold, representing 45 million nonelderly persons. Even though no dramatic annual changes have occurred, the trend is not favorable (Figure 1). The problem has persisted and steadily worsened despite expansions of Medicaid and the introduction of the State Children's Health Insurance Program (SCHIP) in the late 1990s and early 2000s.
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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.
