Abstract:
OBJECTIVE:To investigate normal human placental growth longitudinally throughout the second and third trimesters using MRI. METHODS:Twenty normal, first-time singleton pregnancies were scanned 7 times between the 14th and 38th week of gestation, at 4-week intervals, using MRI. Placental volumes were measured in both sagittal and transversal slices. All placentas were weighed after delivery to make a comparative study. RESULTS:Sixteen of the 20 women had increasing placental volumes from the 14th to 38th week of gestation. The 6th and 7th scan showed that 4 women had placentas of the same size. The mean placental volume increases linearly from the 14th till the 38th week of gestation, with a constant mean growth rate of 29.97 ml/week. The median placental volume extrapolated to delivery was to 856 ml (range 602-1,050 ml). The median weight of the exsanguinated placenta after delivery was 640 g (range 500-787 g). All pregnancies were carried to term, resulting in the delivery of healthy infants with good correlation between placental size and birth weight (R = 0.56, p = 0.009). CONCLUSION:Placental growth was measured systematically in a longitudinal study through the second and third trimesters using MRI. MRI provides a safe and feasible method to measure placental growth. The mean placental growth was linear throughout the second and third trimesters.
journal_name
Gynecol Obstet Investjournal_title
Gynecologic and obstetric investigationauthors
Langhoff L,Grønbeck L,von Huth S,Axelsson A,Jørgensen C,Thomsen C,Vejlstrup Ndoi
10.1159/000452661subject
Has Abstractpub_date
2017-01-01 00:00:00pages
462-467issue
5eissn
0378-7346issn
1423-002Xpii
000452661journal_volume
82pub_type
杂志文章abstract:OBJECTIVE:The purpose of this study is to investigate the in vivo magnetic resonance spectroscopy features of uterine leiomyomas using long echo time and to characterize the spectral patterns of these lesions. METHODS:We calculated metabolites in 15 patients with uterine leiomyomas and myometrium of 20 healthy control...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000080020
更新日期:2004-01-01 00:00:00
abstract::We present the unusual case of a 27-year-old Japanese woman who exhibited recurrences of metastatic tumors from uterine leiomyosarcoma after five operations. Chemotherapy with cisplatin, pirarubicin, and cyclophosphamide was ineffective. Substituting ifosfamide for cyclophosphamide, we obtained a complete response. Th...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000291415
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journal_title:Gynecologic and obstetric investigation
pub_type: 临床试验,杂志文章
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更新日期:2008-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000298808
更新日期:1987-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
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doi:10.1159/000299082
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journal_title:Gynecologic and obstetric investigation
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doi:10.1159/000288161
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000291946
更新日期:1996-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 临床试验,杂志文章
doi:10.1159/000292447
更新日期:1994-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000293338
更新日期:1990-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000320744
更新日期:2011-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000441780
更新日期:2016-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000299913
更新日期:1979-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000291510
更新日期:1997-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000363234
更新日期:2015-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000113083
更新日期:2008-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000299056
更新日期:1984-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000010086
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000299026
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章,评审
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更新日期:2013-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000092857
更新日期:2006-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000298975
更新日期:1985-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000292744
更新日期:1992-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000086004
更新日期:2005-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000358389
更新日期:2014-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000331652
更新日期:2012-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2015-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000299600
更新日期:1981-01-01 00:00:00
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journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000086056
更新日期:2005-01-01 00:00:00