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Digital holographic microscopy for the evaluation of human sperm structure

Published online by Cambridge University Press:  07 March 2013

G. Coppola*
Affiliation:
Centro Fecondazione Assistita (CFA-Italia), Via Manzoni 15, 80123 Naples, Italy.
G. Di Caprio
Affiliation:
Istituto per la Microelettronica e i Microsistemi, del Consiglio Nazionale delle Ricerche, Sezione di Napoli, Via P. Castellino, 111, 80131 Naples, Italy.
M. Wilding
Affiliation:
Centro Fecondazione Assistita (CFA-Italia), Via Manzoni 15, 80123 Naples, Italy.
P. Ferraro
Affiliation:
Istituto Nazionale di Ottica, del Consiglio Nazionale delle Ricerche, Sezione di Napoli, c/o Comprensorio Olivetti, Via Campi Flegrei 34 - 80078 Pozzuoli, Italy.
G. Esposito
Affiliation:
Centro Fecondazione Assistita (CFA-Italia), Via Manzoni 15, 80123 Naples, Italy.
L. Di Matteo
Affiliation:
Centro Fecondazione Assistita (CFA-Italia), Via Manzoni 15, 80123 Naples, Italy.
R. Dale
Affiliation:
Centro Fecondazione Assistita (CFA-Italia), Via Manzoni 15, 80123 Naples, Italy.
G. Coppola*
Affiliation:
Istituto per la Microelettronica e i Microsistemi, del Consiglio Nazionale delle Ricerche, Sezione di Napoli, Via P. Castellino, 111, 80131 Naples, Italy.
B. Dale
Affiliation:
Centro Fecondazione Assistita (CFA-Italia), Via Manzoni 15, 80123 Naples, Italy.
*
All correspondence to: G. Coppola. Centro Fecondazione Assistita (CFA-Italia), Via Manzoni 15, 80123 Naples, Italy. Tel: +39 081641689. Fax: +39 0815479251. e-mail: gcoppola@cfa-italia.com
All correspondence to: G. Coppola. Centro Fecondazione Assistita (CFA-Italia), Via Manzoni 15, 80123 Naples, Italy. Tel: +39 081641689. Fax: +39 0815479251. e-mail: gcoppola@cfa-italia.com

Summary

The morphology of the sperm head has often been correlated with the outcome of in vitro fertilization, and has been shown to be the sole parameter in semen of value in predicting the success of intracytoplasmic sperm injection and intracytoplasmic morphologically selected sperm injection.

In this paper, we have studied whether digital holographic microscopy (DHM) may be useful to obtain quantitative data on human sperm head structure and compared this technique with high-power digitally enhanced Nomarski optics. The main advantage of digital holography is that high-resolution three-dimensional quantitative sample imaging may be automatically produced by numerical refocusing of a two-dimensional image at different object planes without any mechanical scanning. We show that DHM generates useful information on the dimensions and structure of human sperm, not revealed by conventional phase-contrast microscopy, in particular the volume of vacuoles, and suggest its use as an additional prognostic tool in assisted reproduction technology.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2013 

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