R. Matsuoka

发表

First successful case of non‐invasive in‐utero treatment of twin reversed arterial perfusion sequence by high‐intensity focused ultrasound

T. Okai, S. Umemura, M. Kushima, 2013, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Basic study of less invasive high-intensity focused ultrasound (HIFU) in fetal therapy for twin reversed arterial perfusion (TRAP) sequence

T. Okai, S. Umemura, K. Ichizuka, 2016, Journal of Medical Ultrasonics.

Ultrasound-based logistic regression model LR2 versus magnetic resonance imaging for discriminating between benign and malignant adnexal masses: a prospective study

Y. Ohgiya, S. Miyamoto, M. Kushima, 2018, International Journal of Clinical Oncology.

A case of Ewing's sarcoma identified via noninvasive prenatal testing

R. Matsuoka, A. Sekizawa, K. Miyagami, 2020, Clinical case reports.

Magnesium sulfate has an antihypertensive effect on severe pregnancy induced hypertension

R. Matsuoka, A. Sekizawa, Shin Takenaka, 2016 .

Accuracy of the FMF Bayes theorem-based model for predicting preeclampsia at 11–13 weeks of gestation in a Japanese population

H. Takita, L. Poon, R. Matsuoka, 2020, Hypertension Research.

Maternal Smoking History Enhances the Expression of Placental Growth Factor in Invasive Trophoblasts at Early Gestation Despite Cessation of Smoking

J. Hasegawa, R. Matsuoka, A. Sekizawa, 2015, PloS one.

Significance of amniotic pocket measurement after 37 weeks of gestation

T. Okai, K. Ichizuka, J. Hasegawa, 2010 .

A case report of placenta increta treated by uterine wedge resection

T. Okai, K. Ichizuka, J. Hasegawa, 2010 .

Predisposing factors for massive hemorrhage during Cesarean section in patients with placenta previa

T. Okai, K. Ichizuka, J. Hasegawa, 2009, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Comparison of perinatal outcomes between long‐term and short‐term use of tocolytic agent: a historical cohort study in a single perinatal hospital

H. Takita, J. Hasegawa, R. Matsuoka, 2016, The journal of obstetrics and gynaecology research.

PTHrP and PTH/PTHrP receptor expressions in human endometrium.

T. Okai, A. Yanaihara, K. Ichizuka, 2001, Endocrine journal.

Effects of Maternal Smoking on the Placental Expression of Genes Related to Angiogenesis and Apoptosis during the First Trimester

K. Ichizuka, R. Matsuoka, A. Sekizawa, 2014, PloS one.

Proteinuria and hypertension are independent factors affecting fetal DNA values: a retrospective analysis of affected and unaffected patients.

T. Okai, R. Matsuoka, A. Sekizawa, 2004, Clinical chemistry.

Evaluation of an Enzyme Immunometric Assay to Mea- sure Serum Adiponectin Concentrations, Pauli Suominen

T. Okai, R. Matsuoka, A. Farina, 2003 .

Regulation of estrogen activity in human endometrium: effect of IL-1β on steroid sulfatase activity in human endometrial stromal cells

T. Okai, A. Yanaihara, R. Matsuoka, 2002, Steroids.

Maternal Smoking and Placental Expression of a Panel of Genes Related to Angiogenesis and Oxidative Stress in Early Pregnancy

K. Ichizuka, R. Matsuoka, A. Sekizawa, 2014, Fetal Diagnosis and Therapy.

Cell-free fetal DNA in the plasma of pregnant women with severe fetal growth restriction.

T. Okai, R. Matsuoka, A. Sekizawa, 2003, American journal of obstetrics and gynecology.

Application of high‐intensity focused ultrasound for umbilical artery occlusion in a rabbit model

T. Okai, S. Umemura, M. Kushima, 2007, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Velamentous cord insertion: significance of prenatal detection to predict perinatal complications.

T. Okai, K. Ichizuka, J. Hasegawa, 2006, Taiwanese journal of obstetrics & gynecology.

Establishment of Fetal Cranial and Intracranial Structure Volume Measurements using Three-dimensional Ultrasound Imaging in a Japanese Population

T. Okai, K. Ichizuka, J. Hasegawa, 2013 .

Diagnosis of a case of Dandy–Walker malformation aided by measurement of the brainstem–vermis angle at 14 weeks gestation

R. Pooh, K. Ichizuka, J. Hasegawa, 2015, The journal of obstetrics and gynaecology research.

Usefulness of color Doppler mode for fetal cardiac ultrasound screening in the second trimester: a study at a single perinatal center

H. Takita, R. Matsuoka, A. Sekizawa, 2020, 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.

Prenatal Screening for Fetal Aneuploidy

R. Matsuoka, A. Sekizawa, 2020, Fetal Morph Functional Diagnosis.

Attitudes toward non‐invasive prenatal diagnosis among pregnant women and health professionals in Japan

T. Okai, K. Ichizuka, R. Matsuoka, 2012, Prenatal diagnosis.

Treatment of twin‐reversed arterial perfusion sequence using high‐intensity focused ultrasound

T. Okai, S. Yoshizawa, S. Umemura, 2019, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Evaluation of Second-generation HIFU Systems: Less-invasive Fetal Therapy for TRAP Sequence

T. Okai, S. Yoshizawa, S. Umemura, 2017 .

Evaluation of second-generation HIFU systems : less-invasive 3 fetal therapy for TRAP sequence 4 5

T. Okai, S. Yoshizawa, K. Ichizuka, 2017 .

Vitamin C Induces the Reduction of Oxidative Stress and Paradoxically Stimulates the Apoptotic Gene Expression in Extravillous Trophoblasts Derived From First-Trimester Tissue

K. Satoh, J. Hasegawa, R. Matsuoka, 2015, Reproductive Sciences.

Analysis of estimated fetal weight associated with maternal body figure

T. Okai, K. Ichizuka, J. Hasegawa, 2013 .

Localization of the Embryo in the Lower Part of the Gestational Sac at 6–7 Weeks’ Gestation Is Associated with Placenta Previa

T. Okai, K. Ichizuka, J. Hasegawa, 2011, Fetal Diagnosis and Therapy.

A case report of giant fetal neck mass managed by ex utero intrapartum treatment

T. Okai, K. Ichizuka, J. Hasegawa, 2009 .

Perinatal risk in singleton pregnancies after in vitro fertilization.

T. Okai, R. Matsuoka, S. Z. van der Poel, 2010, Fertility and sterility.

Recent advances in non‐invasive prenatal DNA diagnosis through analysis of maternal blood

T. Okai, R. Matsuoka, A. Sekizawa, 2007, The journal of obstetrics and gynaecology research.

Regulation of Estrogen Activity in Human Endometrium: Effect of Cytokines on the Expression of Steroid Sulfatase and Sulfokinase mRNA in Human Endometrial Stromal Cells

T. Okai, A. Yanaihara, R. Matsuoka, 2002 .

Umbilical Cord Insertion to the Lower Uterine Segment Is a Risk Factor for Vasa Previa

T. Okai, H. Fujikawa, K. Ichizuka, 2007, Fetal Diagnosis and Therapy.

Decidual polyps are associated with preterm delivery in cases of attempted uterine cervical polypectomy during the first and second trimester

T. Okai, K. Ichizuka, J. Hasegawa, 2015, 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.

Analysis of placental weight centiles is useful to estimate cause of fetal growth restriction

T. Okai, K. Ichizuka, J. Hasegawa, 2011, The journal of obstetrics and gynaecology research.

Prediction of hemorrhage in placenta previa.

T. Okai, K. Ichizuka, J. Hasegawa, 2012, Taiwanese journal of obstetrics & gynecology.

Analysis of the predictable variables for placenta accreta without placenta previa

T. Okai, K. Ichizuka, J. Hasegawa, 2012, Journal of Medical Ultrasonics.

Correlation between the cervical length and the amount of bleeding during cesarean section in placenta previa

T. Okai, K. Ichizuka, J. Hasegawa, 2011, The journal of obstetrics and gynaecology research.

Prenatal Identification of Confined Placental Mosaicism in Pregnant Women with Fetal Growth Restriction

R. Matsuoka, A. Sekizawa, N. Suzumori, 2021, Reproductive Sciences.

Causes of intrauterine fetal death are changing in recent years

H. Takita, J. Hasegawa, R. Matsuoka, 2017, Journal of perinatal medicine.

Can ultrasonography of the placenta previa predict antenatal bleeding?

T. Okai, K. Ichizuka, J. Hasegawa, 2011, Journal of clinical ultrasound : JCU.

Placenta increta: Postpartum monitoring of plasma cell-free fetal DNA.

T. Okai, K. Ichizuka, R. Matsuoka, 2003, Clinical chemistry.

A case of uterine rupture in a case with a corneal placenta

J. Hasegawa, R. Matsuoka, A. Sekizawa, 2015 .

Limitations of conservative treatment for repeat Cesarean scar pregnancy

T. Okai, K. Ichizuka, J. Hasegawa, 2005, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Location of the placenta or the umbilical cord insertion site in the lowest uterine segment is associated with low maternal blood pressure

T. Okai, K. Ichizuka, J. Hasegawa, 2011, BJOG : an international journal of obstetrics and gynaecology.

Uterine rupture at 10 weeks of gestation after laparoscopic myomectomy

J. Hasegawa, R. Matsuoka, A. Sekizawa, 2015, Journal of Medical Ultrasonics.

Prediction of risk for vasa previa at 9–13 weeks' gestation

T. Okai, K. Ichizuka, J. Hasegawa, 2011, The journal of obstetrics and gynaecology research.

Cord insertion into the lower third of the uterus in the first trimester is associated with placental and umbilical cord abnormalities

T. Okai, K. Ichizuka, J. Hasegawa, 2006, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Ultrasonographic findings of placenta lacunae and a lack of a clear zone in cases with placenta previa and normal placenta

T. Okai, K. Ichizuka, J. Hasegawa, 2011, Prenatal diagnosis.

Evaluation of placental function using near infrared spectroscopy during fetal growth restriction

T. Okai, K. Ichizuka, J. Hasegawa, 2010, Journal of perinatal medicine.

Long‐term outcome of cases of fetal pleural effusion: A study at a single perinatal center in Japan

H. Takita, R. Matsuoka, A. Sekizawa, 2022, Journal of clinical ultrasound : JCU.

Model-Agnostic Method for Thoracic Wall Segmentation in Fetal Ultrasound Videos

Ryuji Hamamoto, Ken Asada, Syuzo Kaneko, 2020, Biomolecules.

Total cell‐free DNA (β‐globin gene) distribution in maternal plasma at the second trimester: a new prospective for preeclampsia screening

T. Okai, K. Ichizuka, R. Matsuoka, 2004, Prenatal diagnosis.

Ultrasound examination at the first trimester

K. Ichizuka, J. Hasegawa, R. Matsuoka, 2014 .

Impact of first trimester determination of abnormal cord insertion on twin‐to‐twin transfusion syndrome and other adverse outcomes in monochorionic diamniotic twins: A retrospective cohort study

H. Takita, R. Matsuoka, A. Sekizawa, 2019, Prenatal diagnosis.

Retrospective cohort study: a comparison of two different management strategies in patients with preterm premature rupture of membranes

T. Okai, R. Matsuoka, K. Otsuki, 2012, Archives of Gynecology and Obstetrics.

The Tei index for evaluation of fetal myocardial performance in sick fetuses.

Antonio Farina, Junichi Hasegawa, Ryu Matsuoka, 2005, Early human development.

Capable of identifying risk factors for placental abruption

T. Okai, K. Ichizuka, J. Hasegawa, 2014, 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.

Role of Epigenetics in the Placenta: Alterations in DNA Promoter Mmethylation and Limprinted Genes

T. Okai, K. Ichizuka, R. Matsuoka, 2011 .

Hypovolemic shock due to massive edema of a pedunculated uterine myoma after delivery

T. Okai, R. Matsuoka, A. Sekizawa, 2009, The journal of obstetrics and gynaecology research.

Medical Professional Enhancement Using Explainable Artificial Intelligence in Fetal Cardiac Ultrasound Screening

Ken Asada, A. Sakai, M. Komatsu, 2022, Biomedicines.

Gestational weight loss has adverse effects on placental development

T. Okai, K. Ichizuka, J. Hasegawa, 2012, 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.

Distribution of nuchal translucency thickness in Japanese fetuses

T. Okai, K. Ichizuka, J. Hasegawa, 2013, The journal of obstetrics and gynaecology research.

Prediction of Preeclampsia

H. Takita, R. Matsuoka, A. Sekizawa, 2021, Donald School Journal of Ultrasound in Obstetrics and Gynecology.

The volume of the chorion villosum is associated with the location of the umbilical cord in the first trimester

T. Okai, K. Ichizuka, J. Hasegawa, 2013, Prenatal diagnosis.

First-trimester measurements of the three-dimensional ultrasound placental volume and uterine artery Doppler in early- and late-onset fetal growth restriction

H. Takita, J. Hasegawa, R. Matsuoka, 2018, 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.

Velamentous cord insertion caused by oblique implantation after in vitro fertilization and embryo transfer

T. Okai, K. Ichizuka, J. Hasegawa, 2011, The journal of obstetrics and gynaecology research.

Umbilical cord insertion site in early gestation and development of placenta

T. Okai, K. Ichizuka, J. Hasegawa, 2009, Journal of perinatal medicine.

Relationship between the umbilical cord coiling index and the umbilical blood flow at 11–13 weeks of gestation

T. Okai, K. Ichizuka, J. Hasegawa, 2013, Prenatal diagnosis.

Detection of umbilical venous constriction by Doppler flow measurement at midgestation

T. Okai, K. Ichizuka, J. Hasegawa, 2010, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Ultrasound Evaluation of the Amount of Wharton’s Jelly and the Umbilical Coiling Index

T. Okai, K. Ichizuka, J. Hasegawa, 2009, Fetal Diagnosis and Therapy.

Ultrasound diagnosis and management of umbilical cord abnormalities.

T. Okai, K. Ichizuka, J. Hasegawa, 2009, Taiwanese journal of obstetrics & gynecology.

UMBILICAL CORD ABNORMALITIES

T. Okai, K. Ichizuka, J. Hasegawa, 2009 .

Do fetal heart rate deceleration patterns during labor differ between various umbilical cord abnormalities?

T. Okai, K. Ichizuka, J. Hasegawa, 2009, Journal of perinatal medicine.

Ultrasonographic study of umbilical cord twist direction during second trimester

H. Takita, C. Salafia, R. Matsuoka, 2021, 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.

Ultrasonic Studies on Amniotic Fluid Umbilical Cord and Placenta

T. Okai, K. Ichizuka, J. Hasegawa, 2011 .

Importance of perinatal care for pregnant women with severe fetal multiple limb abnormalities

J. Hasegawa, R. Matsuoka, A. Sekizawa, 2016 .

Vasa previa is not infrequent

Analysis of the ultrasonographic findings predictive of vasa previa

T. Okai, K. Ichizuka, J. Hasegawa, 2010, Prenatal diagnosis.

Velamentous cord insertion into the lower third of the uterus is associated with intrapartum fetal heart rate abnormalities

T. Okai, K. Ichizuka, J. Hasegawa, 2006, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Placenta Increta: Postpartum Monitoring of Plasma Cell

T. Okai, K. Ichizuka, R. Matsuoka, 2003 .

MR Imaging of Fetuses to Evaluate Placental Insufficiency

Y. Ohgiya, M. Hirose, T. Gokan, 2015, Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine.

High‐intensity focused ultrasound treatment for twin reversed arterial perfusion sequence

T. Okai, S. Umemura, K. Ichizuka, 2012, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

HIFU for TRAP 477 Amniotic membrane Pump fetus Blood flow Placenta Affected fetus

T. Okai, S. Umemura, K. Ichizuka, 2012 .

Detection of Cardiac Structural Abnormalities in Fetal Ultrasound Videos Using Deep Learning

Ken Asada, A. Sakai, M. Komatsu, 2021, Applied Sciences.

Differences in perinatal outcomes according to forming period of single umbilical cord in singleton pregnancy

H. Takita, R. Matsuoka, A. Sekizawa, 2019, Prenatal Diagnosis.

Perinatal outcomes of cases with umbilical hypocoiled cord: a study at a single perinatal center

Accurate diagnosis of cases with umbilical hypo-coiled cord: a study at a single perinatal center

H. Takita, R. Matsuoka, A. Sekizawa, 2021 .

Intrapartum Fetal Heart Rate Pattern in Oligohydramnios

T. Okai, K. Ichizuka, J. Hasegawa, 2008, Fetal Diagnosis and Therapy.

Intrapartum management guidelines based on fetal heart rate pattern classification

T. Okai, S. Kōzuma, T. Kawarabayashi, 2010, The journal of obstetrics and gynaecology research.

Coronary perfusion pressure and compression quality in maternal cardiopulmonary resuscitation in supine and left-lateral tilt positions: A prospective, crossover study using mannequins and swine models.

M. Nagatsuka, K. Ichizuka, R. Matsuoka, 2017, European journal of obstetrics, gynecology, and reproductive biology.

Real prevalence of neural tube defects in Japan: How many of such pregnancies have been terminated?

Hiroyuki Takahashi, S. Ichi, T. Yasui, 2019, Congenital anomalies.

PTHrP and PTH / PTHrP Endometrium Receptor Expressions in Human

Hoshi, T. Okai, Saito, 2006 .

Fragmentation of cell‐free fetal DNA in plasma and urine of pregnant women

T. Okai, R. Matsuoka, A. Sekizawa, 2005, Prenatal diagnosis.

Fragmentation of Fetal DNA in Maternal Plasma and Urine

T. Okai, R. Matsuoka, A. Sekizawa, 2005 .

The role of first‐trimester ultrasound screening for women with positive noninvasive prenatal testing results

H. Takita, R. Matsuoka, A. Sekizawa, 2021, The journal of obstetrics and gynaecology research.

Hypertensive disorders of pregnancy: a strong risk factor for subsequent hypertension 5 years after delivery

Y. Ohya, N. Sakamoto, R. Matsuoka, 2018, Hypertension Research.

Artificial Intelligence and Obstetric Ultrasound

R. Matsuoka, 2021, Donald School Journal of Ultrasound in Obstetrics and Gynecology.

Image Segmentation of the Ventricular Septum in Fetal Cardiac Ultrasound Videos Based on Deep Learning Using Time-Series Information

Ryuji Hamamoto, Ken Asada, Syuzo Kaneko, 2020, Biomolecules.

Usefulness of antenatal ultrasound fetal morphological assessments in the first and second trimester: a study at a single Japanese university hospital

H. Takita, J. Hasegawa, R. Matsuoka, 2015, Journal of Medical Ultrasonics.

Successful monozygotic triplet pregnancy after a single blastocyst transfer following in vitro maturation of oocytes from a woman with polycystic ovary syndrome: a case report

H. Mizunuma, R. Matsuoka, A. Sekizawa, 2020, BMC Pregnancy and Childbirth.

Outcomes in the absence of the ductus venosus diagnosed in the first trimester

H. Takita, J. Hasegawa, R. Matsuoka, 2018, Journal of Maternal-Fetal & Neonatal Medicine.

The routine use of prophylactic Bakri balloon tamponade contributes to blood loss control in major placenta previa

H. Takita, R. Matsuoka, A. Sekizawa, 2021, International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics.

Does maternal oxygen administration during non-reassuring fetal status affect the umbilical artery gas measures and neonatal outcomes?

H. Takita, R. Matsuoka, A. Sekizawa, 2023, Archives of gynecology and obstetrics.

Shadow Estimation for Ultrasound Images Using Auto-Encoding Structures and Synthetic Shadows

Ryuji Hamamoto, Syuzo Kaneko, Suguru Yasutomi, 2021, Applied Sciences.

Analysis of placental weight centiles is useful to estimate cause of fetal growth restriction

T. Okai, K. Ichizuka, J. Hasegawa, 2011, The journal of obstetrics and gynaecology research.

Can umbilical artery Doppler findings at 36 weeks’ gestation predict maternal hypertension at later gestation?

H. Takita, J. Hasegawa, R. Matsuoka, 2017, 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.

Factors affecting the accuracy of fetal cardiac ultrasound screening in the first trimester of pregnancy.

R. Matsuoka, A. Sekizawa, Yuka Yamashita, 2024, Journal of medical ultrasonics.

Does the timing of neuraxial analgesia initiation in elective induction of multiparous women prolong the duration of delivery?

H. Takita, R. Matsuoka, A. Sekizawa, 2023, The journal of obstetrics and gynaecology research.