Skeletal radiology
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To evaluate the usefulness of dynamic gadolinium-enhanced magnetic resonance imaging (MRI) for assessing the viability of the proximal pole of the scaphoid in patients with acute scaphoid fractures. ⋯ Our data are consistent with previously reported data supporting contrast-enhanced MRI for assessment of viability, and showing that dynamic imaging with time-intensity curve analysis does not provide additional predictive value over standard delayed enhanced imaging for acute scaphoid fracture.
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Review Meta Analysis Comparative Study
Comparison of choline-PET/CT, MRI, SPECT, and bone scintigraphy in the diagnosis of bone metastases in patients with prostate cancer: a meta-analysis.
Published data on the diagnosis of bone metastases of prostate cancer are conflicting and heterogeneous. We performed a comprehensive meta-analysis to compare the diagnostic performance of choline-PET/CT, MRI, bone SPECT, and bone scintigraphy (BS) in detecting bone metastases in parents with prostate cancer. Pooled sensitivity, specificity, and diagnostic odds ratios (DOR) were calculated both on a per-patient basis and on a per-lesion basis. ⋯ The pooled specificities were 0.93 (95% CI: 0.89-0.96) for choline PET/CT, 0.85 (95% CI: 0.80-0.90) for bone SPECT, and 0.75 (95% CI: 0.71-0.79) for BS. This meta-analysis indicated that MRI was better than choline PET/CT and BS on a per-patient basis. On a per-lesion analysis, choline PET/CT with the highest DOR and Q* was better than bone SPECT and BS for detecting bone metastases from prostate cancer.
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To evaluate the feasibility of the rotational angiography unit (RAU) as a single technique to guide percutaneous vertebroplasty (PVP). ⋯ RAU guidance is an effective and safe technique for performing PVP because it reduces the procedural time and radiation exposure.
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Case Reports
Recurrence of type I Modic inflammatory changes in the lumbar spine: effectiveness of intradiscal therapy.
Here we report a case of recurrence of Modic type I inflammatory changes in the lumbar spine. A 49-year-old man was referred to our department with a history of chronic low back pain of at least 20 years. At the first consultation, he complained of low back pain only and had no other symptoms such as leg pain, numbness, or weakness. ⋯ Six months after the second episode, follow-up MRI showed another switch of Modic type I change to Modic type II change. Switches of Modic change have been controversial, with mixed findings on pain, natural history, and degenerative changes. The present case reinforces the notion that Modic type I change corresponds to reversible local inflammation.
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Calcific tendinitis is a common source of musculoskeletal pain in adults; however, it is rarely encountered in children. Calcific tendinitis is the most commonly encountered manifestation of hydroxyapatite deposition disease, in which calcium hydroxyapatite crystal deposition occurs in tendons. It may cause acute or chronic pain, or may be entirely asymptomatic. We describe a case of acute calcific tendinitis of the flexor pollicis longus tendon in an 8-year-old boy, who initially presented to our department for workup of a mass felt along the volar aspect of the right wrist.