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Demands of cardiac CTA defy oversimplificationGiving radiologists only noncardiac portion of exams ignores value that they bring to CT.
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CTA revolutionizes treatment of peripheral vascular diseaseWe continue to be both amazed and intrigued by the hype showered on cardiac CT angiography and the corresponding lack of hype given to peripheral vascular CTA. No doubt, 64-slice cardiac or coronary CTA is potentially a revolutionizing technology, but PV-CTA has already revolutionized the comprehensive diagnosis and treatment of peripheral vascular disease.
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'Conflicting' CT lung trial data can be explainedIn the past few months, results of two studies evaluating CT screening for lung cancer have been published in prestigious medical journals, both getting enormous amounts of coverage in the lay press.
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Prepare For the New X-Ray Differential Payment PolicyHow radiology departments can prepare for new legislation regarding X-ray technology.
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10 Questions with Tessa Cook, MD, PhDIn this series, 10 Questions, we ask the same questions to a diverse group of professionals who work in medical imaging. Taking a cue from Twitter, we’ve limited each respondent’s answers to 140 characters.
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2D PACS has had its day in the sun, now 3D PACS is moving inFor the past 15 years, most PACS have performed the basic tasks of taking in images, archiving them, sending them to workstations for display, and hopefully not losing them.
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Aberrant ICAA 57-year-old female presents to the emergency department with dysphagia and reports her throat is “closing up.” On physical exam, there are no palpable masses appreciated along the neck, and the thyroid descends along the midline on swallowing and is noted to be slightly enlarged.
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Gallstone IleusA 70-year-old patient recently presented to an emergency department with a history of abdominal distention, pain and brownish emesis.
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Switch to digital mammography demands intensive planningCongratulations! You've just received budget approval for full-field digital mammography. But before you begin the process of purchasing and installing your new system, you have a bit of preliminary work to do.
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Dual-energy CT makes inroads in aortic and pulmonary studiesConventional single-energy CT imaging results in an anatomic depiction of the imaged area based on depiction of differences in physical density. Dual-energy CT imaging differentiates structures of a similar density with different elemental compositions based on differing attenuations at different photon energies. Hence, dual-energy imaging moves away from imaging density toward imaging elemental, or possibly even chemical, composition (see accompanying article).
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National standards group tackles workstation designSoft-copy reading rooms present unique challenges to designers of specialized PACS furniture. Multiple monitors and keyboards and
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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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PACS must avoid driving radiology, patients apartThe International Society for Optical Engineering hosted the first conference and workshop on the subject. More than 25 years later, the development of PACS has followed paths that were then hard to predict.
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Dural Venous ThrombosisA 32 year old African American female presents with temporal region headaches, including sudden onset of extreme pain with no exacerbating or relieving factors, as well as peripheral vision loss in the right eye. MRI, MRA, and MRV added diagnosis.
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Immediate Trauma CTs: Weighing the Risks and BenefitsRapid CT programs may lead to faster diagnoses, but some say they may not be appropriate for all trauma patients and could unnecessarily increase radiation risk.
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Stop Burnout in Radiology Before It StartsRadiologist burnout is getting worse and action needs to be taken.
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Paging through radiology literature stirs remembrance of things pastI recently completed a task that we expect will lead to a more refined search engine for the Diagnostic Imaging Web site and those of our sister publications at CMPMedica. The project required perusing some 400-plus articles in the radiology literature from the past 30 years, covering every conceivable subcategory, and tagging those that best define each clinical application and modality. It involved some tedious parsing of wheat from chaff but provided ample opportunity for reflection on how far radiology has come.
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Kidney tumor ablation treats nonsurgical candidatesOver 35,000 new cases of renal cell carcinoma occurred in the U.S. in 2001,1 most of them detected as incidental imaging findings on CT, MR, or ultrasound.2,3 Since most of these tumors are relatively small when detected, the classic clinical triad of flank pain, hematuria, and palpable mass is now rarely encountered. Many of these incidentally discovered RCCs are also slow growing. Bosniak et al showed that RCCs smaller than or equal to 3.5 cm grow at an average rate of 0 to 1.1 cm/year (mean 0.36 cm/year).4
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Hybrid Modalities, CAD Systems, and More: New Tech Trends for 2011For a look at what major technology trends are on the horizon for this year, Diagnostic Imaging turned to two thought leaders: William G. Bradley, MD, PhD, who chairs the radiology department at the University of California-San Diego, and Jeffrey Weinreb, MD, professor of diagnostic radiology and director of medical imaging at Yale University School of Medicine in New Haven, Conn.
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Thrombolysis Proves Effective Outside the 3-Hour WindowDelayed treatment outcomes compare with early CT thrombolysis if diffusion-perfusion mismatch is present
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Philips focuses design efforts on 'meaningful' innovationMultiTransmit technology enables customers to realize 3T benefits in breast, body imaging.
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12 Weeks Pregnant, Dark Vaginal DischargeCase History: 28-year-old, G1P0, 12 weeks gestation with dark vaginal discharge.
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Post-traumatic Ossicular DislocationCase History: 20-year-old male with history of head injury followed by reduced hearing in the left ear.
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E-learning branches into medical imagingCross-sectional medical imaging technologies such as CT and MR imaging have evolved and changed dramatically over the past few years. Multislice CT scanners and the latest generation MRI systems can produce excellent images of the human body with contrast between organs that is higher than previously possible.
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Multisite organization migrates to filmlessThe Reseau Hospitalier de Medecine Sociale (RHMS), a not-for-profit organization, comprises five hospitals and four clinics in the Belgian Hainaut province. RHMS relies on 1800 employees, 300 of whom are doctors, to treat 30,000 patients a year. It is the fourth largest medical institution in the Walloon region of Belgium, with a total of 755 beds among its five hospitals. Radiology services are available in each of the sites, which together handle more than 125,000 examinations every year.
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Accessory Axillary Breast TissueCase History: 29-year-old female, five days postpartum, presented with painful swelling and palpable lump.
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4 Key Technology Themes from RSNA 2013These four technology themes from RSNA 2013 will have far-reaching implications for radiologists in the next few years.
