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33.0 MB (1.1 MB compressed)
3399 x 3390 pixels
28.7 x 28.7 cm ⏐ 11.3 x 11.3 in (300dpi)
DR NAJEEB LAYYOUS / SCIENCE PHOTO LIBRARY DR NAJEEB LAYYOUS / SCIENCE PHOTO LIBRARY
Foetal genitalia. Coloured 3-D ultrasound scan of a male foetus. The foetus' penis and scrotum are seen at lower centre. Ultrasound scanning is a diagnostic technique that sends high-frequency sound waves into the body via a transducer. The returning echoes are recorded and used to build an image of an internal structure. Foetal ultrasound scanning is routine during pregnancy. 3-D scanning uses computer technology to return more detailed images than conventional 2-D scans.
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