title: Imaging growth dynamics of tumour spheroids using optical coherence tomography.
abstract: Optical coherence tomography (OCT) was used to monitor the dynamics of tumour spheroid formation by the hanging drop method. In contrast to microscopy, the estimates obtained using OCT for the volume of the spheroid, were consistent with the measured changes in cell number as a function of time. The OCT images also revealed heterogeneous structures in the spheroids of approximately 200 microm diameter. These corresponded to the necrotic regions identified by fluorescence of propidium iodide stained cells.
authors.affiliation: Biomedical Applications Section, Raja Ramanna Centre for Advanced Technology, Indore, India. msharma@cat.ernet.in
authors.forename: M
authors.initials: M
authors.lastname: Sharma
authors.forename: Y
authors.initials: Y
authors.lastname: Verma
authors.forename: K D
authors.initials: KD
authors.lastname: Rao
authors.forename: R
authors.initials: R
authors.lastname: Nair
authors.forename: P K
authors.initials: PK
authors.lastname: Gupta
mesh_terms: D002452:Cell Count; D045744:Cell Line, Tumor; D006801:Humans; D009369:Neoplasms / Q000473:pathology*; D018874:Spheroids, Cellular / Q000473:pathology*; D041623:Tomography, Optical Coherence / Q000295:instrumentation / Q000379:methods*