Abstract
Decreased absolute tumor blood flow (TBF) measured by arterial spin labeling perfusion imaging (ASL-PI) on 3-tesla magnetic resonance imaging demonstrated the reduced size and growth hormone (GH) secretion of a large GH-producing pituitary adenoma in a 32-year-old man in response to octreotide therapy. The study shows the usefulness of ASL-PI in providing a biomarker of the antiangiogenic effect of octreotide.
MeSH terms
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Adult
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Angiogenesis Inhibitors / pharmacology*
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Antineoplastic Agents, Hormonal / pharmacology*
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Human Growth Hormone / metabolism
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Humans
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Magnetic Resonance Imaging*
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Male
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Octreotide / pharmacology*
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Pituitary Neoplasms / blood supply*
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Pituitary Neoplasms / drug therapy*
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Pituitary Neoplasms / metabolism
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Reproducibility of Results
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Spin Labels
Substances
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Angiogenesis Inhibitors
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Antineoplastic Agents, Hormonal
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Spin Labels
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Human Growth Hormone
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Octreotide