Abstract
Convection-enhanceddeliveryofrhenium-186(186Re)-nanoliposomesisapromisingapproachto provideprecisedeliveryoflargelocalizeddosesofradiationforpatientswithrecurrentglioblastoma multiforme.Currentapproachesfortreatmentplanningutilizingconvection-enhanceddeliveryare designedforsmallmoleculedrugsandnotforlargerparticlessuchas186Re-nanoliposomes.Toenable thetreatmentplanningfor186Re-nanoliposomesdelivery,wehavedevelopedacomputationalfluid dynamicsapproachtopredictthedistributionofnanoliposomesforindividualpatients.Inthiswork,we construct,calibrate,andvalidateafamilyofcomputationalfluiddynamicsmodelstopredictthespatiotemporaldistributionof186Re-nanoliposomeswithinthebrain,utilizingpatient-specificpre-operative magneticresonanceimaging(MRI)toassignmaterialpropertiesforanadvection-diffusiontransport model.Themodelfamilyiscalibratedtosinglephotonemissioncomputedtomography(SPECT) imagesacquiredduringandaftertheinfusionof186Re-nanoliposomesforfivepatientsenrolledina PhaseI/IItrial(NCTNumberNCT01906385),andisvalidatedusingaleave-one-outbootstrapping methodologyforpredictingthefinaldistributionoftheparticles.Aftercalibration,ourmodelsare capableofpredictingthemid-deliveryandfinalspatialdistributionof186Re-nanoliposomeswithaDice valueof0.69 ± 0.18andaconcordancecorrelationcoefficientof0.88 ± 0.12(mean ± 95%confidence interval),usingonlythepatient-specific,pre-operativeMRIdata,andcalibratedmodelparametersfrom priorpatients.Theseresultsdemonstrateaproof-of-conceptforapatient-specificmodelingframework, whichpredictsthespatialdistributionofnanoparticles.Furtherdevelopmentofthisapproachcould enableoptimizingcatheterplacementforfuturestudiesemployingconvection-enhanceddelivery.
Original language | English |
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Article number | 045012 |
Number of pages | 15 |
Journal | Biomedical Physics & Engineering Express |
Volume | 7 |
Issue number | 4 |
DOIs | |
Publication status | Published - Jul 2021 |
Funding
We thank the National Institutes of Health for funding through R01 CA235800, T32 EB007507, NCI 1R01 CA186193 and NCI 1U01CA253540, and 1U01 CA174706. We thank CPRIT for funding through RR160005. T.E.Y. is a CPRIT Scholar of Cancer Research. We thank the American Association of Physicists in Medicine for Research Seed Funding. We offer a sincere thank you to all the patients who volunteer to participate in our studies; your strength and courage are examples for all of us.
Funders | Funder number |
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National Institutes of Health | |
National Cancer Institute | R01CA186193, U01CA253540, R01CA235800, U01CA174706 |
National Institute of Biomedical Imaging and Bioengineering | T32EB007507 |
Keywords
- Computational fluid dynamics
- Computational oncology
- Convection-enhanced delivery
- Glioblastoma multiforme
- Radiation therapy
- Glioblastoma/diagnostic imaging
- Brain Neoplasms/diagnostic imaging
- Humans
- Neoplasm Recurrence, Local
- Radioisotopes
- Rhenium
- Convection