Brain Contrast-Enhanced Ultrasound Evaluation of a Pediatric Swine Model
Brain injury remains a leading cause of morbidity and mortality in children. We evaluated the feasibility of using a pediatric swine model to develop contrast-enhanced ultrasound (CEUS)–based measures of brain perfusion for clinical application in various types of brain injury monitoring. Six-week-old, 10-kg swine (N = 10) were anesthetized, and an acoustic window was created in the right frontal cranium to provide visualization of an oblique coronal plane and bilateral thalami. Ultrasound contrast agent was administered via a femoral venous catheter as a weight-based (0.03 mL/kg) bolus. After localization of the imaging...
Source: Ultrasound Quarterly - March 1, 2022 Category: Radiology Tags: Original Research Source Type: research
Applications of Mechanical Arm in the Virtual Touch Tissue Imaging Quantification and the Differential Diagnosis of Breast Tumors
To assess the diagnostic performance of quantitative parameters for virtual touch tissue imaging quantification by the mechanical arm probe, 128 women with 152 breast lesions (90 benign and 62 malignant) were included and maximum elasticity (Vmax), median elasticity (Vmean), maximum elasticity minus minimum (Vmax-min), and minimum elasticity (Vmin) were measured. Intercorrelation coefficients and Bland-Altman plots were used to compare the repeatability and consistency of handheld probe and mechanical arm measurements. Receiver operating characteristic curve was used to evaluate the diagnostic efficiency. The results showe...
Source: Ultrasound Quarterly - March 1, 2022 Category: Radiology Tags: Original Research Source Type: research
Comparison of Ultrasound Features With Maximum Standardized Uptake Value Assessed by 18F-Fluorodeoxyglucose-Positron Emission Tomography/Computed Tomography for Prognosis of Estrogen Receptor+/Human Epithelial Growth Factor Receptor 2− Breast Cancer
estrogen receptor (ER)+/human epithelial growth factor receptor 2 (HER2)− breast cancers have less aggressive traits and a favorable prognosis when treated early. Prediction of prognosis for treatment outcome or survival in ER+/HER2− cancer is important. Ultrasound (US) is an effective and easy technique for breast cancer diagnosis and tumor characterization. Positron emission tomography/computed tomography (PET/CT) is widely used for diagnosis, staging, and therapeutic response in cancer evaluation, and a high maximum standardized uptake value (SUVmax) is associated with poor prognosis. The study aim was to compare th...
Source: Ultrasound Quarterly - March 1, 2022 Category: Radiology Tags: Original Research Source Type: research
Reproducibility of Automated Breast Ultrasonography and Handheld Ultrasonography for Breast Lesion Size Measurement
In conclusion, ABUS showed excellent interobserver and intraobserver agreement with HHUS in measuring size of the lesions, regardless of shape, size, and stiffness. Therefore, ABUS mixed with HHUS can be used reliably in following up breast lesions size. (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - March 1, 2022 Category: Radiology Tags: Original Research Source Type: research
Imaging of Benign and Malignant Breast Lesions Using Contrast-Enhanced Ultrasound: A Pictorial Essay
Contrast-enhanced ultrasound is a promising noninvasive imaging technique for evaluating benign and malignant breast lesions, as contrast provides information about perfusion and microvasculature. Contrast-enhanced ultrasound is currently off-label use in the breast in the United States, but its clinical and investigational use in breast imaging is gaining popularity. It is important for radiologists to be familiar with the imaging appearances of benign and malignant breast masses using contrast-enhanced ultrasound. This pictorial essay illustrates enhancement patterns of various breast masses from our own experience. Path...
Source: Ultrasound Quarterly - March 1, 2022 Category: Radiology Tags: Pictorial Essay Source Type: research
Editor's Introduction: The Delicate Balance
No abstract available (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - March 1, 2022 Category: Radiology Tags: Editorial Source Type: research
Auricular Pseudocyst: Sonographic Appearance in 17 Patients
Auricular pseudocyst (AP) is a rare benign condition that corresponds to an intracartilaginous collection resulting in a noninflammatory cystic swelling of the ear. (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - December 1, 2021 Category: Radiology Tags: Original Research Source Type: research
Diagnostic Significance of Ultrasonographic Markers and Score in Detection of Gestational Diabetes Mellitus in the Indian Subcontinent
In most countries, only high-risk women are screened for gestational diabetes mellitus (GDM). In addition, a onetime early screening test may miss GDM as it may be diagnosable between 24 and 28 weeks. Thus, it is preferable to have alternative tests to classify women as high risk for GDM and keep them under regular follow-up. A total of 120 women with singleton pregnancies and established maternal and/or pregnancy-related risk factors for GDM and who provided informed consent were subjected to an obstetric ultrasound scan at/or after 24 weeks' gestation followed by administration of a 2-hour 75-g oral glucose tolerance tes...
Source: Ultrasound Quarterly - December 1, 2021 Category: Radiology Tags: Original Research Source Type: research
Diaphragmatic Mesothelial Cyst: Radiological Appearance and Follow-Up Results During Childhood
To identify radiological findings of diaphragmatic mesothelial cysts (DMC) in the pediatric age group and to assess follow-up outcomes. (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - December 1, 2021 Category: Radiology Tags: Original Research Source Type: research
Ultrasound Characteristics of Cystadenofibromas: A Retrospective Multicenter Study
This study was to describe the ultrasound (US) findings of CAFs. Preoperative US information of 86 CAFs was retrospectively collected. To better illustrate their characteristic, 173 cystadenomas (CADs), 103 borderline ovarian tumors (BOTs), and 129 cystadenocarcinomas (CACs) were recruited as match groups. Besides morphology evaluation, tumors were categorized by the Ovarian-Adnexal Reporting and Data System US system. Higher-risk stratification in CAFs was more often being seen than CADs (63% of CAFs classified as Ovarian-Adnexal Reporting and Data System 4 or 5 vs 35% in CADs). Cystadenofibromas more commonly appeared as...
Source: Ultrasound Quarterly - December 1, 2021 Category: Radiology Tags: Original Research Source Type: research
The Superior Mesenteric Artery Angle and Abdominal Main Vessel Diameters in Normovolemic Children: For Practical Sonographic Evaluation
Conclusions
In our study, we think that the measurements obtained by USG provide normal values of the diameters of the abdominal main vessels and SMA angle. These values can be used as a reference for interpreting hydration status, vascular diameter assessment, and SMA compression syndromes. (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - December 1, 2021 Category: Radiology Tags: Original Research Source Type: research
Preoperative Evaluation of Central Lymph Nodes in Papillary Thyroid Carcinoma Using High-Resolution Ultrasound and Shear-Wave Elastography
The aim of this study was to discuss the diagnostic value of high-resolution ultrasound and virtual touch tissue imaging quantification (VTIQ) for distinguishing metastatic and benign central lymph nodes (CLNs) in patients with papillary thyroid carcinoma. This retrospective study involved 86 pathologically proven benign lymph nodes (LNs) and 118 metastatic LNs in patients with papillary thyroid carcinoma. We analyzed the sonographic features of CLNs (size, shape, distribution, hilum, echogenicity, cystic change, calcification, vascularity, shear-wave velocity [SWV]). The prevalence of sonographic features and the SWV was ...
Source: Ultrasound Quarterly - December 1, 2021 Category: Radiology Tags: Original Research Source Type: research
Ultrasonic Characteristics of Medullary Thyroid Carcinoma: Differential From Papillary Thyroid Carcinoma and Benign Thyroid Nodule
This study included 53 cases of MTC, 151 cases of PTC, and 200 cases of benign thyroid nodule which were pathologically confirmed. There were no significant differences in sex and thyroid gland involvement among the MTC, PTC, and benign thyroid nodule groups. The age among the 3 groups was statistically different (P = 0.002). The TNM stage of MTC was significantly higher than that of PTC (P (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - December 1, 2021 Category: Radiology Tags: Original Research Source Type: research
Interobserver Variability of Ultrasound Features Based on American College of Radiology Thyroid Imaging Reporting and Data System Lexicon in American College of Radiology Thyroid Imaging Reporting and Data System System: A Single-Center Study With Radiologists and Radiology Residents
The aim of this study is to evaluate the variability of selecting the ultrasound features used in American College of Radiology Thyroid Imaging Reporting and Data System (ACR-TIRADS) and in assigning the ACR-TIRADS level in a single center among radiologists and radiology residents. The study cohort consisted of 108 thyroid nodules in 102 patients who had definite cytology results after thyroid fine needle aspiration biopsy (Bethesda category II, VI) or surgery. Seven observers including 3 radiologists and 4 radiology residents evaluated the nodules according to 5 ultrasound feature categories. The evaluation process was p...
Source: Ultrasound Quarterly - December 1, 2021 Category: Radiology Tags: Original Research Source Type: research
Advanced Ultrasound Techniques for Differentiation of Benign Versus Malignant Thyroid Nodules: A Review
Grayscale ultrasound (US) is decisive in stratifying which thyroid nodules benefit from fine-needle aspiration to evaluate for malignancy. Unfortunately, a significant percentage of nodules remain indeterminate. (Source: Ultrasound Quarterly)
Source: Ultrasound Quarterly - December 1, 2021 Category: Radiology Tags: Review Articles Source Type: research
