Tumour Scanning with Indium-111 Dihaematoporphyrin Ether
Author Information
Author(s): M.R. Quastell, A.M. Richter, J.G. Levy
Primary Institution: Soroka Medical Center and Faculty of Health Sciences, The Ben Gurion University of the Negev
Hypothesis
Can indium-111 labelled dihaematoporphyrin ether (DHE) be used for gamma camera scanning and quantitative measurement of uptake in tumour tissue in vivo?
Conclusion
Indium-111 labelled DHE shows marked uptake in tumours with lower background in normal tissues compared to indium-111 chloride.
Supporting Evidence
- Indium-111 DHE showed significantly higher tumour:muscle ratios compared to indium-111 chloride.
- About 80% of the radioactivity from indium-111 DHE remained associated with the porphyrin in vivo.
- Indium-111 DHE had lower concentrations in peripheral tissues compared to indium-111 chloride.
Takeaway
This study looked at a special dye that helps doctors see tumors better using a camera, and it found that this dye sticks to tumors more than to normal body parts.
Methodology
The study involved injecting DBA/2J mice with indium-111 labelled DHE and measuring its distribution in tumour and normal tissues using gamma-camera imaging and tissue dissection.
Limitations
The study was conducted on mice, and results may not directly translate to humans.
Participant Demographics
DBA/2J mice, approximately 20g in weight.
Statistical Information
P-Value
p<0.005
Statistical Significance
p<0.005
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