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Daily Archives

January 9, 2017

Incremental value of SPECT/CT over planar bone scan in the evaluation of skull base osteomyelitis: A potentially fatal disease in diabetics

By | CT-Topics, Nuclear Medicine-topics | No Comments

A 55-year-old male diabetic patient presented to the ENT clinic with symptoms of severe earache and dizziness that progressively increased over 3 weeks. He also had low grade fever for the last 5 days. He was diabetic since 14 years, and on 20 units of insulin/day for the last 8 years. He also had history of left foot pain and swelling since last 2 years. A planar bone scan done with 20 mCi (740 MBq) 99m Tc-MDP using a GE Mill VG dual head gamma camera with acquisition in the continuous mode at a speed of 15 cm/min showed no obvious abnormality in the skull base region

Workflow and Scan Protocol Considerations for Integrated Whole-Body PET/MRI in Oncology

By | MRI-Topics, Nuclear Medicine-topics | No Comments

Integrated PET/MRI systems open exciting possibilities for clinical and research applications. However, compared with PET/CT, PET/MRI is a complex technique resulting in new problems and challenges, especially regarding workflow, scan protocols, and data analysis. This complexity applies in particular to examinations in oncology with partial- or whole-body coverage extending over several bed positions. Unlike diagnostic PET/CT, for which the clinical CT protocols can largely be copied from stand-alone CT, the design of a diagnostic MRI
protocol for partial- or whole-body coverage is more complex and has to be adapted to the special requirements of PET/MRI to be both time-efficient and comprehensive. Here, we describe basic considerations concerning workflow, imaging protocols, and image analysis for whole-body PET/MRI in oncology, based on our experience with the first integrated PET/MRI

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