Article
Obstetrics & Gynecology
Flore-Anne Pain, Anthony Dohan, Gilles Grange, Louis Marcellin, Joelle Uzan-Augui, Francois Goffinet, Philippe Soyer, Vassilis Tsatsaris
Summary: The study aimed to assess the performance of ultrasound and MRI features in distinguishing different types of placenta accreta spectrum and developed a predictive score for predicting the risk of placenta percreta. The results showed that the predictive score had good accuracy in identifying placenta percreta.
ACTA OBSTETRICIA ET GYNECOLOGICA SCANDINAVICA
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Rachel L. Leon, Brandon P. Brown, Scott A. Persohn, Carrie D. Norris, Nicole P. Steinhardt, Chen Lin, Paul R. Territo
Summary: The use of IVIM magnetic resonance imaging analysis may be helpful in diagnosing placenta accreta spectrum disorders in pregnant women, showing significantly higher perfusion fraction values in PAS patients compared to healthy controls. However, there were no statistically significant differences in fast diffusion and slow diffusion values between PAS subjects and healthy controls.
MAGNETIC RESONANCE IMAGING
(2021)
Article
Medicine, General & Internal
Keita Hasegawa, Satoru Ikenoue, Yuya Tanaka, Maki Oishi, Toyohide Endo, Yu Sato, Ryota Ishii, Yoshifumi Kasuga, Daigo Ochiai, Mamoru Tanaka
Summary: This study aimed to investigate the accuracy of the placenta accreta index (PAI) for predicting placenta accreta spectrum (PAS) in women with placenta previa. The results showed that a PAI > 2 was the most effective cut-off point for predicting PAS and was more sensitive than traditional evaluation methods. Women with PAS had higher incidences of previous cesarean delivery, severe placental lacunae, thin myometrial thickness, anterior placenta, and presence of bridging vessels compared to those without PAS. PAI could be used to predict outcomes in women with placenta previa and reduce perinatal complications caused by PAS.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Acoustics
Sarah K. Happe, Casey S. Yule, Catherine Y. Spong, C. Edward Wells, Jodi S. Dashe, Elysia Moschos, Martha W. F. Rac, Donald D. McIntire, Diane M. Twickler
Summary: The study validated the PAI for predicting PAS in pregnancies with previous CD, demonstrating high sensitivity and specificity. Contemporaneous application of the PAI is useful in prenatal prediction of PAS.
JOURNAL OF ULTRASOUND IN MEDICINE
(2021)
Article
Obstetrics & Gynecology
Leslie W. Nelson, Darington Richardson, Niraj R. Chavan, Harit Kapoor, Zachary D. Stanley, Vaibhav Gulati, Olivia K. Winfrey, Aman Khurana
Summary: This study reviewed 59 placental MRIs for suspected PAS and found that interface signs were the most sensitive subcategory, showing significant differences between PAS diagnosis and the number of interface signs present.
EUROPEAN JOURNAL OF OBSTETRICS & GYNECOLOGY AND REPRODUCTIVE BIOLOGY
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Yuwei Bao, Ying Pang, Ziyan Sun, Qian Li, Dazhong Tang, Liming Xia
Summary: The study found that IVIM parameters f and D* can quantitatively evaluate the higher perfusion in AP compared to NP. Additionally, IVIM may be a useful functional diagnostic technique for predicting placenta accreta.
EUROPEAN RADIOLOGY
(2021)
Article
Obstetrics & Gynecology
Florrie N. Y. Yu, K. Y. Leung
Summary: Antenatal diagnosis of placenta accreta spectrum (PAS) disorders allows for planned management, reducing hemorrhagic morbidity. Cesarean section and placenta previa are common risk factors, and ultrasound is a promising diagnostic tool for PAS, even in the first trimester.
BEST PRACTICE & RESEARCH CLINICAL OBSTETRICS & GYNAECOLOGY
(2021)
Review
Radiology, Nuclear Medicine & Medical Imaging
Sitthipong Srisajjakul, Patcharin Prapaisilp, Sirikan Bangchokdee
Summary: Placenta accreta spectrum is characterized by abnormal placental adherence or invasion, primarily managed surgically. Imaging plays a guiding role in diagnosis, with ultrasound as the preferred modality and MRI for complex cases. Failure to diagnose PAS can lead to severe bleeding and surgical complications.
KOREAN JOURNAL OF RADIOLOGY
(2021)
Review
Developmental Biology
Harit Kapoor, Mauro Hanaoka, Adrian Dawkins, Aman Khurana
Summary: Placenta Accreta Spectrum (PAS) refers to abnormally adhesive and penetrative placental tissue at a uterine scar, divided into different degrees of invasion. Recently, the incidence of PAS has increased, making it the leading cause of emergency peripartum hysterectomy. While MRI plays an important role in PAS diagnosis, there are still inconsistencies in MRI findings in the literature.
Article
Radiology, Nuclear Medicine & Medical Imaging
Simone Maurea, Francesco Verde, Pier Paolo Mainenti, Luigi Barbuto, Francesca Iacobellis, Valeria Romeo, Raffaele Liuzzi, Giorgio Raia, Gianfranco De Dominicis, Claudio Santangelo, Luigia Romano, Arturo Brunetti
Summary: The study validated the accuracy of using MRI imaging methods for predicting PAS in patients with placenta previa, finding that Method 2 had a higher accuracy compared to Method 1, and more experienced radiologists performed better in the evaluation.
EUROPEAN JOURNAL OF RADIOLOGY
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Charis Bourgioti, Konstantina Zafeiropoulou, Chara Tzavara, George Daskalakis, Stavros Fotopoulos, Marianna Theodora, Maria Evangelia Nikolaidou, Marianna Konidari, Sofia Gourtsoyianni, Evangelia Panourgias, Vassilis Koutoulidis, Epameinondas Anastasios Martzoukos, Anastasia Evangelia Konstantinidou, Lia Angela Moulopoulos
Summary: This study compared the diagnostic capabilities of 1.5-T and 3.0-T MRI in placenta accreta spectrum (PAS) and found that both imaging techniques have equivalent effectiveness. MRI showed high sensitivity and specificity for PAS diagnosis and accurately predicted extrauterine placental spread.
DIAGNOSTIC AND INTERVENTIONAL IMAGING
(2022)
Article
Obstetrics & Gynecology
Olivier Morel, Heleen J. van Beekhuizen, Thorsten Braun, Sally Collins, Petra Pateisky, Pavel Calda, Wolfgang Henrich, Ammar Al Naimi, Lone Nikoline Norgaardt, Kinga M. Chalubinski, Loic Sentilhes, Boris Tutschek, Alexander Schwickert, Vedran Stefanovic, Charline Bertholdt
Summary: The study evaluated the performance of ultrasound and magnetic resonance imaging in diagnosing the severity of placenta accreta spectrum disorders, finding that both imaging techniques had poor discriminatory abilities. The benefit of additional magnetic resonance imaging was not demonstrated in distinguishing mild from severe cases.
ACTA OBSTETRICIA ET GYNECOLOGICA SCANDINAVICA
(2021)
Article
Medicine, General & Internal
Ida Faralli, Valentina Del Negro, Alessandra Chine, Natalia Aleksa, Enrico Ciminello, Maria Grazia Piccioni
Summary: This study evaluated the accuracy of US and MRI in the diagnosis of placenta accreta and found that US was superior to MRI in both diagnosis and identification of disease severity. However, both methods had difficulty in identifying the presence/absence of the disease, particularly in cases of posterior placenta.
Article
Obstetrics & Gynecology
Hatem Abu Hashim, Eman M. Shalaby, Mohammed H. Hussien, Mohamed El Rakhawy
Summary: The PAI score has been validated as a predictor for placenta accreta spectrum and shows promise as a predictive factor for high-risk women requiring hysterectomy.
INTERNATIONAL JOURNAL OF GYNECOLOGY & OBSTETRICS
(2022)
Article
Obstetrics & Gynecology
Amarnath Bhide
Summary: Screening for clinically significant placenta accreta spectrum (PAS) can accurately identify the condition with high sensitivity and specificity (>90-95%). The focus should be on women with placenta previa and previous Cesarean deliveries, as screening for PAS without placenta previa is less productive and may result in false negatives. Screening results can indicate a low or high probability of PAS, and women who test positive or have uncertain ultrasound features should be referred to specialized centers. Those confirmed with a high probability of PAS should plan for delivery at such centers.
BEST PRACTICE & RESEARCH CLINICAL OBSTETRICS & GYNAECOLOGY
(2023)