Indian Journal of Nuclear Medicine
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ORIGINAL ARTICLE
Year : 2018  |  Volume : 33  |  Issue : 4  |  Page : 295-301

A practical approach to optimize scan protocol for simultaneous whole-body positron emission tomography/magnetic resonance imaging in cancer staging


Department of Molecular Imaging and Nuclear Medicine, Indraprastha Apollo Hospitals, New Delhi, India

Correspondence Address:
Amarnath Jena
Department of Molecular Imaging and Nuclear Medicine, Indraprastha Apollo Hospitals, Sarita Vihar, Delhi Mathura Road, New Delhi - 110 076
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijnm.IJNM_55_18

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Objective: The aim of the report is to present time efficient whole-body positron emission tomography/magnetic resonance imaging (PET/MRI) protocol evolved and tested for comprehensive evaluation of cancer patients. Materials and Methods: Whole body as well as regional simultaneous PET and MRI was performed on Biograph mMR (Siemens, Erlangen, Germany) Simultaneous PET/MRI system in 4500 clinical cases of various cancers from 2013 to 2017 with an in-house designed imaging protocol to assess its utility. Results: Using this protocol, the whole body is covered with optimized sequences (T1, T2, short tau inversion recovery, diffusion, and 3D volumetric interpolated breath-held) with PET which has been found adequate for complete metastatic workup in 30–45 min. With region-specific studies, it provides a comprehensive staging workup in an additional 10–15 min. The workflow offered additive advantages of effectively addressing incidentalomas besides being useful in terms of diagnostic utility. Conclusion: The proposed whole-body PET MRI imaging protocol used in a clinical setting is found acceptable and reasonably time efficient to optimally exploit the potentials of the technique in oncology.


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