40 research outputs found

    Prospective SPECT-CT organ dosimetry-driven radiation-absorbed dose escalation using the In-111 (111In)/yttrium 90 (90Y) ibritumomab tiuxetan (Zevalin ®) theranostic pair in patients with lymphoma at myeloablative dose levels

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    PURPOSE: We prospectively evaluated the feasibility of SPECT-CT/planar organ dosimetry-based radiation dose escalation radioimmunotherapy in patients with recurrent non-Hodgkin\u27s lymphoma using the theranostic pair of METHODS: 24 patients with CD20-positive relapsed or refractory rituximab-sensitive, low-grade, mantle cell, or diffuse large-cell NHL, with normal organ function, platelet counts \u3e 75,000/mm RESULTS: Patient-specific hybrid SPECT/CT + planar organ dosimetry was feasible in all 18 cases and used to determine the patient-specific therapeutic dose and guide dose escalation (26.8 ± 7.3 MBq/kg (mean), 26.3 MBq/kg (median) of CONCLUSIONS: Patient-specific outpatien
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