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Study finds huge variations in pediatric nuclear medicine dosingA survey of children’s imaging services has found a twofold variation in radiopharmaceutical doses administered during pediatric nuclear medicine exams. For some radiopharmaceuticals, the reported maximum activities varied by as much as a factor of 10, and minimum activities differed by as much as a factor of 20, suggesting the need for a consensus among nuclear physicians on appropriate doses for young patients.
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Analysis teases out true value of outsourcing anytime readsThe need for nighttime coverage relief was the initial driver of commercially viable teleradiology. For several years, however, the local in-house radiology group gained no economic value for outsourcing its nighttime work, because its members had to reread the cases the next day to formally convert the reports to primary reads. The group also had to pay a premium for nighttime services.
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Shrapnel WoundCase History: 37-year-old male Afghan soldier sustained reported shrapnel to left temporal area, and had a right blown out pupil.
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Clinical Decision Support: A Radiology Practice’s ApproachOne radiology practice’s success story on preparing for clinical decision support.
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Image IQ: 7-year-old with Pain after FallA 7-year-old male presented with pain after falling on an outstretched hand.
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Image IQ: 45 y/o, Pain in Right Iliac FossaA 45-year-old male patient presented with pain in the right iliac fossa.
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Image IQ: Adolescent Male with Hip PainAdolescent male presented with complaint of pain in the left hip, which is relieved by analgesics.
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Young Investigator winner recaps AOCR 2010It’s an honor to give my observation about my experience at AOCR-2010. From the tiniest to the biggest, all details-be it the front office, registration counter, information desk, or audio-visual aids-were excellent.
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Singapore Radiological Society holds its 19th Annual Scientific MeetingThe 19th Annual Scientific Meeting of the Singapore Radiological Society was jointly organized with the College of Radiologists, Singapore, from Feb. 25 through 28. I have attended this meeting the past three years as it gives me ample opportunity to interact with my colleagues and feel the pulse of radiology in and around the region. Each year, the focus is on a hot topic, and this year’s topic was nuclear medicine and molecular imaging.
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Intrathoracic Accessory Lobe of the LiverA 20-year-old woman presented with a rectal mass that was malignant on biopsy. Chest radiograph and abdominal CT were ordered to look for metastases.
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Multislice CT and CAD bring new efficiencies to diagnosisComputer-aided detection is gradually gaining acceptance in radiology and has become a major research focus in the past few years. The development of CAD with multislice CT has reached the point where, together, they have the potential to offer new capabilities in the interpretation of emergency room scans.
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Patient Portals: 3 Ways to Engage Your PatientsPatient portals are an innovative and beneficial way for radiologists to communicate; you just have to use them.
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Molecular imaging shows enormous clinical potentialIt is not difficult to find resources on the topic of molecular imaging. A number of comprehensive review articles have been published1-5 and dedicated websites created (e.g., www.mi-central.org/). What follows is an introduction to this emerging area with radiologists' needs in mind.
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Virtual autopsies guide postmortem investigationPhysician Rudolf Virchow introduced microscopic examination to classic pathology about midway through the 19th century. This helped to establish modern pathology. Although autopsies are now recognized as valuable medical procedures, the core methodology has not changed for many years.
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Siemens' dual- and singlesource CTs reflect historyWith patients' well-being in focus and dose reduction as a top priority, Siemens over the past three decades has introduced innovations in the way CT operates and how it is used.
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MR imaging strides ahead in rectal cancer stagingIn rectal cancer, mortality rates are high and prognoses are generally poor, owing to the strong risk of metastases and local recurrence.
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Ovarian lesions pose diagnostic dilemmasThe main objective of imaging patients with symptoms suggestive of ovarian lesions is to distinguish benign findings from malignant disease. Masses can be characterized with a variety of noninvasive imaging techniques, including transabdominal and transvaginal ultrasound, CT, and MRI. Each of these modalities has its advantages and limitations.
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Dual-source technology extends CT applicationsCT is one of the most important of the noninvasive imaging modalities, providing 3D representations of the x-ray attenuation coefficient with submillimeter spatial resolution.
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Bilateral brachymetapodyThis 41-year-old woman presented with a known history of bilateral foot deformities and new complaints of bilateral foot pain. She had associated hallux valgus deformities.
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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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Targeted therapies gain groundon hard-to-treat liver tumorsNot long ago, our approach to treating difficultmetastatic tumors was to "spray and pray." Weknew that chemotherapy and other traditionaltreatment approaches could cause great damageand had a limited chance of successfully destroyingthe entire tumor.
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MR imaging ensures clarity in focal liver lesionsMost benign lesions considered unspecific on ultrasound or CT can be identified with great confidence on MRI
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Dose reduction measures benefit pediatric patientsBalancing the benefits of a procedure involving ionizing radiation against the possibility of unwanted damage is often difficult. Regulations on exposure must consider medical, economic, and ethical aspects of radiation as well as the individual and collective dose of the population.
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Ovarian lesions pose diagnostic dilemmasThe main objective of imaging patients with symptoms suggestive of ovarian lesions is to distinguish benign findings from malignant disease. Masses can be characterized with a variety of noninvasive imaging techniques, including transabdominal and transvaginal ultrasound, CT, and MRI. Each of these modalities has its advantages and limitations.
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MRI, ultrasound offer hope to arthritis patientsMRI and ultrasound can be useful tools in evaluating patients with early rheumatoid arthritis. Both techniques can detect pre-erosive synovial inflammation. They can also identify early bone damage before it becomes apparent on x-rays.
