Journal of Clinical Ultrasound最新文献

{"title":"Evaluation and Predictive Value of Placental Thickness in Fetal Biometric Assessment and Doppler Indices of the Uterine and Umbilical Arteries.","authors":"Fahimeh Azizinik, Fatemeh Shakki Katouli, Fahimeh Zeinalkhani, Faezeh Fazelnia, Mohammadreza Tahamtan","doi":"10.1002/jcu.70009","DOIUrl":"https://doi.org/10.1002/jcu.70009","url":null,"abstract":"<p><strong>Objective: </strong>The placenta plays a critical role in fetal development by facilitating the exchange of oxygen and nutrients from maternal blood while removing carbon dioxide and metabolic waste. It also acts as a protective barrier against infections and maintains pregnancy by producing key hormones. As the first organ to reflect pathological changes during pregnancy, placental evaluation can aid in the early detection of pregnancy complications. The primary objective of this study was to assess the correlation between placental thickness (PT) and fetal biometric parameters during the second-trimester anomaly screening, aiming to facilitate earlier detection of pregnancy outcomes.</p><p><strong>Materials and methods: </strong>This cross-sectional study included 300 healthy pregnant women with gestational ages between 18 and 22 weeks, determined by last menstrual period or first-trimester ultrasound. Participants underwent routine biometric ultrasound assessments, including biparietal diameter (BPD), head circumference (HC), abdominal circumference (AC), femur length (FL), estimated fetal weight (EFW), and Doppler evaluations of the umbilical and uterine arteries. PT was measured perpendicularly to the uterine wall at the site of cord insertion. Statistical analyses included descriptive statistics, Pearson correlation coefficients, and independent t-tests, with statistical significance set at p < 0.001.</p><p><strong>Results: </strong>The mean placental thickness (PT) was 23.45 ± 3.99 mm. Statistically significant (p < 0.001) but weak positive correlations were observed between PT and the following fetal growth parameters: estimated fetal weight (EFW) (r = 0.29), abdominal circumference (AC) (r = 0.33), head circumference (HC) (r = 0.21), biparietal diameter (BPD) (r = 0.27), and femur length (FL) (r = 0.29). Gestational age showed a weak positive correlation with PT (r = 0.32). Correlations between PT and Doppler indices, including the umbilical artery pulsatility index (PI) and uterine artery PI, were trivial (r = -0.16 and r = 0.06, respectively). No significant differences in PT were observed based on fetal gender.</p><p><strong>Conclusion: </strong>PT demonstrates statistically significant correlations with fetal biometric parameters and gestational age, suggesting its potential utility as a marker for fetal growth and development. However, its association with Doppler indices is trivial, indicating limited utility in vascular assessments. These findings highlight the need for further investigation into PT as a noninvasive marker for prenatal assessment, particularly in larger cohorts and during the third trimester.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144626504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acute Effects of Neck Muscle Fatigue on Masticatory Muscles in Probable Bruxists: A Sonoelastography and Perfusion Imaging Approach.","authors":"Sule Erdem, Alptekin Tosun","doi":"10.1002/jcu.70011","DOIUrl":"https://doi.org/10.1002/jcu.70011","url":null,"abstract":"<p><strong>Objective: </strong>The interplay between cervical and masticatory muscles remains unclear, despite evidence suggesting co-contraction. This cross-sectional study aims to investigate the acute effects of induced neck muscle fatigue on the mechanical and hemodynamic properties of masticatory muscles using sonoelastography and microvascular imaging.</p><p><strong>Methods: </strong>Thirty-two individuals with probable bruxism were included based on positive responses to a standardized questionnaire and the presence of clinical signs (e.g., tooth wear, linea alba). Sonoelastography assessed the elasticity index (EI) of the masseter and temporalis muscles, while microvascular imaging evaluated the velocity index (VI) of the masseter muscle. Pain-free maximum mouth opening (PMMO), pain pressure thresholds (PPTs) of the masseter, temporalis, sternocleidomastoid, and trapezius muscles, as well as masseter and temporalis muscle thickness at rest and during clenching, were measured. All clinical and ultrasound measurements were repeated after a fatigue protocol consisting of repetitive flexion and extension movements.</p><p><strong>Results: </strong>PPTs significantly decreased in all muscle groups (p < 0.05). Temporalis EI showed a significant reduction (right: 1.29-1.05, p = 0.044; left: 0.94-0.75, p = 0.027), while masseter EI decreased non-significantly. VI of the masseter muscle significantly increased on both sides (right: 49.26%-54.18%, p = 0.027; left: 34.09%-47.08%, p < 0.001). Post-fatigue, PMMO significantly decreased from 4.11 ± 0.64 to 3.78 ± 0.70 mm (p < 0.001). Muscle thickness remained unchanged.</p><p><strong>Conclusions: </strong>Neck muscle fatigue acutely alters the mechanical and hemodynamic properties of masticatory muscles. These findings support the need for an integrated assessment of cervical and masticatory muscle function in bruxism.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144626502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acute Septic Epididymitis of the Spermatic Cord Leading to Ischemic Necrosis of the Testis in an Adolescent: A Case Report.","authors":"Xiangqin Qi, Xiujuan Chen, Zhishuai Hu, Wenzhe Xu, Xiaoguang Huo, Yu Xiu","doi":"10.1002/jcu.70012","DOIUrl":"https://doi.org/10.1002/jcu.70012","url":null,"abstract":"<p><p>Acute epididymal septic inflammation is a common scrotal emergency among adolescents. Nevertheless, cases of testicular ischemia and necrosis are still rare. We report a rare case of testicular ischemic necrosis caused by inflammation in a 16-year-old male youth. Four ultrasound examinations were carried out throughout this period. This article also provides a concise literature review on testicular ischemic necrosis induced by acute epididymo-orchitis. The case emphasizes the clinical manifestations, ultrasonographic findings, histopathological characteristics, and treatment approaches.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144626503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prenatal Identification of an Accessory Right Inferior Hepatic Vein: A Rare Anatomical Variant.","authors":"Can Ozan Ulusoy, Şevki Çelen","doi":"10.1002/jcu.70013","DOIUrl":"https://doi.org/10.1002/jcu.70013","url":null,"abstract":"<p><p>We report one of the earliest prenatal observations of an accessory right inferior hepatic vein in a fetus with growth restriction at 36 weeks. Two- and three-dimensional Doppler ultrasonography revealed this vein draining into the inferior vena cava below the right portal vein, without signs of porto-systemic shunting or associated anomalies. This case contributes to the limited literature on hepatic venous system variants in antenatal life and underscores the role of detailed prenatal imaging in identifying uncommon vascular anatomies.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144618126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Beyond the Target Sign: Two Cases of Low-Type Anal Atresia Diagnosed Prenatally With Fetal Perineal Imaging.","authors":"Halil Korkut Daglar, Didem Kaymak","doi":"10.1002/jcu.70008","DOIUrl":"https://doi.org/10.1002/jcu.70008","url":null,"abstract":"<p><p>Prenatal diagnosis of low-type anorectal malformations (ARMs) can be challenging, particularly when the target sign appears displaced or misleading. We report two fetuses-one male and one female-with isolated low-type anal atresia, both diagnosed prenatally through targeted axial and midsagittal transperineal ultrasound and confirmed postnatally. In the male fetus, an eccentrically located target sign and a hyperechoic tract suggested a perineoscrotal fistula. In the female fetus, the anal canal was anteriorly displaced, with a fistulous tract extending to the posterior vaginal introitus. Absence of bowel dilatation in both cases limited indirect signs, highlighting the value of direct anatomical assessment.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144612168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chest Wall Lymphangiomas: Systematic Review of the Literature and Presentation of Two Prenatally Detected Cases in Monochorionic Diamniotic Twins.","authors":"Alessia Pinto, Gabriele Tonni, Emanuele Manti, Alessandra Bovino, Chiara Ventriglia, Marino Signorelli, Camilla Ferronato, Angelica Santolin, Ricciarda Raffaelli, Waldo Sepulveda, Rodrigo Ruano, Gianpaolo Grisolia","doi":"10.1002/jcu.24017","DOIUrl":"https://doi.org/10.1002/jcu.24017","url":null,"abstract":"<p><p>A systematic review of the literature on fetal chest wall lymphangioma with case presentations occurring in monochorionic pregnancies is reported. Potential complications during intrauterine life include the invasion or compression of adjacent structures or vital organs. The risk of dystocia during labor is also a cause for concern. Postnatally, several treatment options are available, with sclerotherapy and surgery being the preferred ones, though there is no consensus in the literature on the best technique. To our knowledge, chest wall lymphangioma has been briefly described once before in a monochorionic twin pregnancy, a case that is reported in detail in this review together with a previously unpublished case.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144591302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prenatal and Postnatal Ultrasonographic Characteristics of Immature Teratoma in the Gastric Wall: A Case Report.","authors":"Yijin Chen, Li Huang, Wen Xiong","doi":"10.1002/jcu.24074","DOIUrl":"https://doi.org/10.1002/jcu.24074","url":null,"abstract":"<p><p>Teratomas are germ cell tumors from three embryonic germ layers. Immature teratomas in the gastric wall are extremely rare. A 31-year-old pregnant woman underwent prenatal ultrasound at 36 weeks, revealing a fetal abdominal mass. Postnatal imaging confirmed an immature teratoma originating from the stomach wall. This case highlights the importance of prenatal ultrasound for early diagnosis. Complete surgical resection remains the recommended treatment for this rare malignant tumor.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144583987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prospective Evaluation of Internal Cranial Fronto-Occipital Diameter/Corpus Callosum Length Ratio on Normal Depistage and IUFGR Prenatal Ultrasound.","authors":"M Sarreau, O Hubert, A Couillet, H Dahmouni, V Vequeau-Goua, I Silmenova Brachot","doi":"10.1002/jcu.24057","DOIUrl":"https://doi.org/10.1002/jcu.24057","url":null,"abstract":"<p><strong>Introduction: </strong>Aim to explore the feasibility of assessing the relationship between the internal cranial fronto-occipital diameter (IFOD) and corpus callosum (CC) length and compare this to fetuses with intrauterine growth restriction (IUGR).</p><p><strong>Materials and methods: </strong>Observationnal study including 989 fetuses: 912 eutrophic fetuses and 75 with IUGR. Strict quality control criteria were applied to CC measurements, which were taken in median sagittal section including the vermis. IFOD was measured along the same axis between the internal bone tables. IFOD/CC ratio was calculated and analyzed by pregnancy trimester. We compared the IFOD/CC ratio between eutrophic fetuses and those with IUGR, excluding cases with cerebral malformations or genetic disorders.</p><p><strong>Results: </strong>IFOD/CC ratio was, on average, 3.32 (±0.91) in the first trimester (< 21 GW) for 40 patients, 2.54 (±0.18) in the second trimester (21-30 GW) for 487 patients, and 2.47 (±0.08) in the third trimester (31-38 GW) for 385 patients. The ratio decreased proportionally with advancing pregnancy. The IFOD/CC ratio was 2.51 (±0.13) in eutrophic fetuses and 2.49 (±0.10) in fetuses with IUGR, with no significant difference between the two groups (Student's t-test, p value = 0.18).</p><p><strong>Conclusion: </strong>There was no significant difference between eutrophic fetuses and those with IUGR. This method appears to be quick and could offer an advantage over standard CC charts. It may also help minimize potential biases in detecting CC hypoplasia.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144583988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intraoperative Contrast-Enhanced Ultrasonography in Pediatric Surgeries: A Review of Techniques, Applications, and Outcomes.","authors":"Parya Valizadeh, Delaram J Ghadimi, Payam Jannatdoust, Ali Zare Dehnavi, Saeed Rahmani, Afsaneh Soltani, Noosha Samieefar","doi":"10.1002/jcu.24096","DOIUrl":"https://doi.org/10.1002/jcu.24096","url":null,"abstract":"<p><p>Contrast-enhanced ultrasound (CEUS) utilizes microbubble contrast agents to improve imaging clarity during surgeries, offering real-time visualization of anatomy and perfusion without ionizing radiation. CEUS has demonstrated feasibility in congenital heart defect repairs for monitoring procedures and cerebral perfusion, in developmental dysplasia of hip surgeries for assessing hip perfusion, in neurosurgery for delineating tumor margins, and in urogenital surgeries for guiding interventions. Intraoperative CEUS improves precision, reduces reliance on postoperative imaging, and enhances safety. While it is a safe and effective tool for intraoperative decision-making in pediatric surgeries, further studies are needed to expand its applications and standardize its use.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144564817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gender Determination Through Maxillary Sinus Volumes: A Single-Center Computed Tomography Study.","authors":"Murat Kaya, Osman Konukoğlu, Barış Can Arslan","doi":"10.1002/jcu.70005","DOIUrl":"https://doi.org/10.1002/jcu.70005","url":null,"abstract":"<p><strong>Purpose: </strong>To obtain values for gender determination using maxillary sinus measurements in human skeletal remains.</p><p><strong>Materials and methods: </strong>The images of 520 patients who underwent paranasal computed tomography were analyzed. Height (cm): Superior wall to the lowermost point of the inferior wall of the sinus, coronal plane width (cm): Outermost point of the lateral wall to the medial wall, axial plane length (cm): Longest anterior to posterior measurement of the cavity, axial plane, measurements of maxillary sinuses were made.</p><p><strong>Results: </strong>A statistically significant relationship exists between gender and the right maxillary sinus volume (χ² = 30.468; accuracy = 62%; p < 0.001). 63.88% (n = 168) of those with a volume below 17.49 cm³ were female, while 39.69% (n = 102) of those with a volume of 17.49 cm³ or higher were female. There is a statistically significant relationship between gender and the left maxillary sinus volume (χ² = 24.456; accuracy = 60%; p < 0.001). 63.95% (n = 149) of those with a volume below 18.08 cm³ were female, while 42.16% (n = 121) of those with a volume of 18.08 cm³ or higher were female.</p><p><strong>Conclusion: </strong>In forensic skeletal cases with unknown sex, the length, width, height, and volumetric measurements of the maxillary sinus using CT can determine whether it belongs to a male or a female.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144560183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}