Ultrasonographic assessment of abnormal pregnancy.
Ultrasonographic imaging is widely used in small animal practice for the diagnosis of pregnancy and the determination of fetal number. Ultrasonography can also be used to monitor abnormal pregnancies, for example, conceptuses that are poorly developed for their gestational age (and therefore are likely to fail), and pregnancies in which there is embryonic resorption or fetal abortion. An ultrasound examination may reveal fetal abnormalities and therefore alter the management of the pregnant bitch or queen prior to parturition. There are, however, a number of ultrasonographic features of normal pregnancies that may mimic disease, and these must be recognized.
Department of Farm Animal and Equine Medicine and Surgery, Royal Veterinary College, University of London, Hertfordshire, United Kingdom.
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England
D000034:Abortion, Veterinary / Q000000981:diagnostic imaging; D000818:Animals; D002371:Cat Diseases / Q000000981:diagnostic imaging*; D002415:Cats; D000013:Congenital Abnormalities / Q000000981:diagnostic imaging / Q000662:veterinary; D004283:Dog Diseases / Q000000981:diagnostic imaging*; D004285:Dogs; D005314:Embryonic and Fetal Development; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging / Q000662:veterinary; D005327:Fetal Resorption / Q000000981:diagnostic imaging / Q000662:veterinary; D005865:Gestational Age; D008098:Litter Size; D011247:Pregnancy; D011248:Pregnancy Complications / Q000000981:diagnostic imaging / Q000662:veterinary*; D011270:Pregnancy, Animal; D016216:Ultrasonography, Prenatal / Q000662:veterinary*