AJR. American journal of roentgenology
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AJR Am J Roentgenol · Dec 2009
Radiation dose and excess risk of cancer in children undergoing neuroangiography.
The primary goal of this study was to determine the radiation dose received during diagnostic and interventional neuroangiographic procedures in a group of pediatric patients. A second goal was to approximate the total average radiation dose from all angiographic and CT studies that pediatric patients underwent during the study period and to estimate the increased risk of cancer incidence in this patient group. ⋯ Although both angiography and CT have revolutionized the practice of medicine and confer benefits to patients, it is important that we continue to investigate the possible adverse effects of these technologies. Protocols that minimize radiation dose without compromising a study should be implemented.
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AJR Am J Roentgenol · Dec 2009
Respiratory gating enhances imaging of pulmonary nodules and measurement of tracer uptake in FDG PET/CT.
The aim of this study was to evaluate prospectively the effects of respiratory gating during FDG PET/CT on the determination of lesion size and the measurement of tracer uptake in patients with pulmonary nodules in a clinical setting. ⋯ Our findings suggest that the use of PET respiratory gating in PET/CT results in lesion volumes closer to those assessed by CT and improved measurements of tracer uptake for lesions in the lungs.
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AJR Am J Roentgenol · Dec 2009
Triple-drug transcatheter arterial chemoembolization in unresectable hepatocellular carcinoma: assessment of survival in 124 consecutive patients.
The objective of our study was to describe survival outcome in 124 patients with unresectable hepatocellular carcinoma treated with triple-drug transcatheter arterial chemoembolization (TACE) using doxorubicin, cisplatin, and mitomycin C using a standardized regimen. ⋯ Patients with hepatocellular carcinoma who underwent triple-drug TACE followed by liver transplantation showed the longest survival. Patients who did not receive a transplant and were treated with triple-drug TACE with a permanent embolic agent showed longer survival to 30 months after TACE than those receiving a nonpermanent embolic agent.
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AJR Am J Roentgenol · Nov 2009
ReviewIntraabdominal complications secondary to ventriculoperitoneal shunts: CT findings and review of the literature.
The purpose of our study was to evaluate the abdominopelvic CT findings of various intraabdominal complications secondary to ventriculoperitoneal shunts for hydrocephalus and to review the literature. ⋯ On abdominopelvic CT, various intraabdominal complications secondary to ventriculoperitoneal shunt were shown, of which, shunt infection was the most common, followed by CSF pseudocyst, abscess, and infected fluid collection.