PMID- 22272917
OWN - NLM
STAT- MEDLINE
DCOM- 20130117
LR  - 20191210
IS  - 1476-4954 (Electronic)
IS  - 1476-4954 (Linking)
VI  - 25
IP  - 9
DP  - 2012 Sep
TI  - Are there any differences in three-dimensional placental vascular indices 
      obtained using conventional power Doppler and high-definition flow imaging?
PG  - 1664-7
LID - 10.3109/14767058.2012.657274 [doi]
AB  - OBJECTIVE: The purpose of this study was to determine whether there are 
      differences in values and reproducibility of three-dimensional (3D) vascular 
      indices obtained on placental volumes using power Doppler (PD) or high-definition 
      flow imaging (HDFI) techniques. METHODS: A prospective study was performed on 121 
      uncomplicated singleton pregnancies at 11 + 0 to 13 + 6 weeks of gestation. Two 
      placental volumes were acquired from each pregnancy. Vascularization index (VI), 
      flow index (FI) and vascularization flow index (VFI) were then analyzed and 
      compared. In order to assess the reproducibility of the measurements, two 
      additional placental volumes obtained with both PD and HDFI were acquired in 31 
      pregnancies and the agreement assessed by intraclass correlation coefficients. 
      Inter-observer variability was assessed by analyzing all the volumes by two 
      observers blinded to each other's. RESULTS: A significant relationship was 
      observed between the vascular indices values obtained with the two techniques (VI 
      Pearson's r=0.891 p<0.001; FI r=0.769 p<0.001; VFI r=0.847 p<0.001). The median 
      values of VI, FI and VFI were significantly higher when obtained with HDFI 
      imaging. In serial recordings, the ICCs resulted higher when volumes were 
      acquired with HDFI rather than with PD techniques. Similarly, HDFI demonstrated a 
      higher inter-observer reproducibility. CONCLUSIONS: 3D vascular indices 
      calculated using HDFI are higher than those calculated using conventional PD. 
      Although the relationship between the two methods is high, HDFI shows a better 
      reproducibility suggesting its potential clinical application.
FAU - Rizzo, Giuseppe
AU  - Rizzo G
AD  - Fetal Medicine Center Genoma, Universita di Roma "Tor Vergata", Rome, Italy. 
      giuseppe.rizzo@uniroma2.it
FAU - Pietrolucci, Maria Elena
AU  - Pietrolucci ME
FAU - Aiello, Eloisa
AU  - Aiello E
FAU - Dijmeli, Estelle
AU  - Dijmeli E
FAU - Bosi, Costanza
AU  - Bosi C
FAU - Arduini, Domenico
AU  - Arduini D
LA  - eng
PT  - Evaluation Study
PT  - Journal Article
DEP - 20120214
PL  - England
TA  - J Matern Fetal Neonatal Med
JT  - The journal of maternal-fetal & neonatal medicine : the official journal of the 
      European Association of Perinatal Medicine, the Federation of Asia and Oceania 
      Perinatal Societies, the International Society of Perinatal Obstetricians
JID - 101136916
SB  - IM
MH  - Adult
MH  - Blood Flow Velocity/physiology
MH  - Female
MH  - Gestational Age
MH  - Health Status Indicators
MH  - Humans
MH  - Imaging, Three-Dimensional/*methods
MH  - Observer Variation
MH  - Organ Size
MH  - Parity
MH  - Placenta/anatomy & histology/*blood supply/*diagnostic imaging
MH  - Pregnancy
MH  - Ultrasonography, Doppler, Duplex
MH  - Ultrasonography, Prenatal/*methods
EDAT- 2012/01/26 06:00
MHDA- 2013/01/18 06:00
CRDT- 2012/01/26 06:00
PHST- 2012/01/26 06:00 [entrez]
PHST- 2012/01/26 06:00 [pubmed]
PHST- 2013/01/18 06:00 [medline]
AID - 10.3109/14767058.2012.657274 [doi]
PST - ppublish
SO  - J Matern Fetal Neonatal Med. 2012 Sep;25(9):1664-7. doi: 
      10.3109/14767058.2012.657274. Epub 2012 Feb 14.