Average fetal depth in utero: data for estimation of fetal absorbed radiation dose

Journal Article · Sat Feb 01 04:00:00 EST 1986 · Radiology; (United States)

DOI:https://doi.org/10.1148/radiology.158.2.3510449· OSTI ID:5585199

Ragozzino, M W; Breckle, R; Hill, L M; Gray, J E

To estimate fetal absorbed dose from radiographic examinations, the depth from the anterior maternal surface to the midline of the fetal skull and abdomen was measured by ultrasound in 97 pregnant women. The relationships between fetal depth, fetal presentation, and maternal parameters of height, weight, anteroposterior (AP) thickness, gestational age, placental location, and bladder volume were analyzed. Maternal AP thickness (MAP) can be estimated from gestational age, maternal height, and maternal weight. Fetal midskull and abdominal depths were nearly equal. Fetal depth normalized to MAP was independent or nearly independent of maternal parameters and fetal presentation. These data enable a reasonable estimation of absorbed dose to fetal brain, abdomen, and whole body.

• Research Organization: Massachusetts General Hospital, Boston
• OSTI ID: 5585199
• Journal Information: Radiology; (United States), Journal Name: Radiology; (United States) Vol. 2; ISSN RADLA
• Country of Publication: United States
• Language: English

Related Subjects

560151* -- Radiation Effects on Animals-- Man
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ABDOMEN
ANIMALS
BIOMEDICAL RADIOGRAPHY
BLADDER
BODY
BODY AREAS
DIAGNOSTIC TECHNIQUES
DOSES
FEMALE GENITALS
FEMALES
FETAL MEMBRANES
FETUSES
IRRADIATION
MAMMALS
MAN
MEDICINE
MEMBRANES
NUCLEAR MEDICINE
ORGANS
PARITY
PARTICLE PROPERTIES
PLACENTA
PREGNANCY
PRENATAL EXPOSURE
PRENATAL IRRADIATION
PRIMATES
RADIATION DOSES
RADIOLOGY
SKELETON
SKULL
URINARY TRACT
UTERUS
VERTEBRATES
WOMEN