Multimodal in vivoimaging reveals limited allograft survival, intrapulmonary cell trapping and minimal evidence for ischemia-directed BMSC homing

Table 1 Comparison of detection techniques

	Bioluminescence imaging	Confocal endomicroscopy
Strength	Non-invasive	High spatial resolution
	Low background signals	Single cell imaging
	Highly specific for Luciferase activity	Cell morphology studies
Weakness	Low spatial resolution	Invasive procedure
	Low cell numbers not detectable	Requires direct probe contact
	Limited tissue penetration	Autofluorescence reduces specificity
	Superior specificity	Superior spatial resolution

ISSN: 1472-6750