Dr. Richard Black

Nuclear Medicine
Is PET an endangered species?
Just as it appeared ready to enter the clinical mainstream, PET imaging has been thrown a series of setbacks that raise questions as to whether it will ever live to up its potential. In this article, PET educator Dr. Richard Black discusses PET's spectacular rise, and also the threats that may bring it back to earth.
August 2, 2007
2007 04 11 12 05 10 706
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A case presented at the ARRS annual meeting shows the results of successful microwave ablation (MWA) treatment for a 39-year-old female with metastatic fibrosarcoma of the right axillary sinus.
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Ultrasound-guided microwave ablation (MWA) is a safe, effective method for treating bone metastases.
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A 47-year-old female patient with chronic pain in the left lower back/buttock with unknown cause. PET demonstrated focally increased FDG uptake at the left facet L3-4 l. MRI shows minimal fluid, but no edema. Follow-up PET-MRI after six months shows a similar pattern. The patient is on the waiting list for targeted facet joint infiltration (typically not covered by insurance in the Netherlands).
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Sagittal view of the scapula showing a comminuted fracture of the inferior portion, imaged with computed tomography (CT, left image) and by an ultrashort time of echo (UTE) sequence (right image) on MRI. Both images appear similar, with an identical representation of the fracture, illustrating the potential of UTE to create CT-like images and suggesting that both imaging modalities could be interchangeable in clinical practice. All images and captions courtesy of Prof. Benjamin Fritz, MD.
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Dice similarity index measurements compare the x-ray pulsatility index (XPI) to digital subtraction angiography in patients with suspected chronic thromboembolic pulmonary hypertension. XPI is green, pulmonary angiography is pink and the overlap between the two is white. Image courtesy of the ARRS.
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