In ovo serial skeletal muscle diffusion tractography of the developing chick embryo using DTI: feasibility and correlation with histology.
BMC Dev Biol
; 12: 38, 2012 Dec 26.
Article
en En
| MEDLINE
| ID: mdl-23268571
ABSTRACT
BACKGROUND:
Magnetic resonance imaging is a noninvasive method of evaluating embryonic development. Diffusion tensor imaging (DTI), based on the directional diffusivity of water molecules, is an established method of evaluating tissue structure. Yet embryonic motion degrades the in vivo acquisition of long-duration DTI. We used a dual-cooling technique to avoid motion artifact and aimed to investigate whether DTI can be used to monitor chick embryonic skeletal muscle development in ovo, and to investigate the correlation between quantitative DTI parameters fractional anisotropy (FA) and fiber length and quantitative histologic parameters fiber area percentage (FiberArea%) and limb length.RESULTS:
From 84 normally developing chick embryos, 5 were randomly chosen each day from incubation days 5 to 18 and scanned using 3.0 Tesla magnetic resonance imaging. A dual-cooling technique is used before and during imaging. Eggs were cracked for making histological specimen after imaging. 3 eggs were serially imaged from days 5 to 18. We show that skeletal muscle fibers can be tracked in hind limb in DTI beginning with incubation day 8. Our data shows a good positive correlation between quantitative DTI and histologic parameters (FA vs FiberArea% r= 0.943, p<0.0001; Fiber_length vs Limb_length r=0.974, p<0.0001). The result of tracked fibers in DTI during incubation corresponds to the development of chick embryonic skeletal muscle as reported in the literature.CONCLUSION:
Diffusion tensor imaging can provide a noninvasive means of evaluating skeletal muscle development in ovo.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Músculo Esquelético
/
Imagen de Difusión Tensora
Límite:
Animals
Idioma:
En
Revista:
BMC Dev Biol
Asunto de la revista:
EMBRIOLOGIA
Año:
2012
Tipo del documento:
Article
País de afiliación:
China