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Single-photon emission computed tomography for prediction of treatment results in sequential intraperitoneal chemotherapy at peritoneal carcinomatosis
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Colorectal Surgery. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Research and Development, Gävleborg. (PC-gruppen)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Colorectal Surgery. (PC-gruppen)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Oncology, Radiology and Clinical Immunology, Section of Medical Physics.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Oncology, Radiology and Clinical Immunology, Oncology.
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2012 (English)In: Annals of Surgery, ISSN 0003-4932, E-ISSN 1528-1140Article in journal (Refereed) Submitted
Abstract [en]

Background:

Cytoreductive surgery and intraperitoneal chemotherapy (IPC) treatment can improve survival in peritoneal carcinomatosis. One of the reasons for failure of sequential postoperative intraperitoneal chemotherapy (SPIC) is lack of distribution of the chemotherapy in the peritoneal cavity. The primary aim of this study was to evaluate single-photon emission computed tomography (SPECT) as a predictor of successful SPIC treatment and prognosis. A secondary aim was to assess the relationship between SPECT, feasibility of SPIC, and clinical variables.

Methods:

Fifty-one patients (mean age 52 years, range 14-74, 20 women) were treated with Cytoreductive surgery and SPIC. SPECT studies with intraperitoneal (i.p.) Technetium-99 via a Port-a-Cath (PaC) were performed before the second course of treatment. The i.p. distribution was registered as a detected volume (DV) at four different threshold settings (1, 2, 5, and 10%) of the global maximum intensity of the SPECT examination. A calculation model for SPECT and clinical variables was tested.

Results:

The DV measured in the SPECT examination predicted the number of subsequent SPIC courses. The highest correlation (R=0.45) for DV was in the 2% threshold setting. Patients with a DV2% lower than mean reached two SPIC courses and patients with a DV2% higher than mean reached six SPIC course. Height correlated to higher DV and a higher number of SPIC courses. Patients with a height lower than mean reached a DV2% at 3930 ml and patients higher than mean reached a DV2% at 5507 ml. A taller person could tolerate more SPIC courses (R=0.28) and patients with a height higher than mean reached six SPIC courses; patients with a height lower than mean reached four courses. There was no correlation between DV and survival.

Conclusion:

The feasibility of performing SPIC without further surgical intervention can be predicted by SPECT, and it might therefore be an instrument to select which patients should preferably be treated with alternative therapy.

Place, publisher, year, edition, pages
2012.
Keyword [en]
peritoneal carcinomatosis, spect
National Category
Surgery
Research subject
Surgery
Identifiers
URN: urn:nbn:se:uu:diva-108659OAI: oai:DiVA.org:uu-108659DiVA: diva2:236809
Available from: 2009-09-25 Created: 2009-09-25 Last updated: 2017-12-13Bibliographically approved

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Hansson, JohanMahteme, HaileGraf, Wilhelm

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Colorectal SurgeryCentre for Research and Development, GävleborgSection of Medical PhysicsOncology
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