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Diagnostic ultrasound

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https://www.readbyqxmd.com/read/29452427/effect-of-routine-screening-head-ultrasounds-on-clinical-interventions-for-premature-infants
#1
Andrew Z Heling, Matthew M Laughon, Wayne A Price
OBJECTIVE: This article assesses whether routine, screening head ultrasound (HUS) studies performed at 7 to 14 postnatal days for premature infants are followed by clinical interventions. STUDY DESIGN: This retrospective cohort study included all inborn infants delivered at < 30 weeks' gestational age (GA) between January 1, 2012 and December 31, 2015 at a single center who had a routine, screening HUS performed between 7 and 14 postnatal days ( n = 303). We defined "clinical intervention" as a 7 to 14 postnatal day HUS that was followed by neurosurgical intervention prior to a 36- to 40-week postmenstrual age (PMA) HUS or elective withdrawal of critical care within 30 days of a positive HUS finding...
February 16, 2018: American Journal of Perinatology
https://www.readbyqxmd.com/read/29451124/copper-oxide-loaded-plga-nanospheres-towards-a-multifunctional-nanoscale-platform-for-ultrasound-based-imaging-and-therapy
#2
Or Perlman, Iris S Weitz, Sarit Sivan, Hiba Abu-Khalla, Madeleine Benguigui, Yuval Shaked, Haim Azhari
Copper oxide nanoparticles (CuO-NPs) are increasingly investigated for diagnostic and therapeutic purposes. Recent work have demonstrated their anticancer potential as well as contrast agent capabilities for magnetic resonance imaging (MRI) and through-transmission ultrasound. However, no capabilities of CuO-NPS were demonstrated using conventional ultrasound systems, which, unlike the formers, are widely deployed in the clinic. Furthermore, in spite of their potential as multifunctional nano-based materials for diagnosis and therapy, CuO-NPs were delayed from further clinical translation due to their inherent toxicity...
February 16, 2018: Nanotechnology
https://www.readbyqxmd.com/read/29450853/endometriosis-clinical-features-mr-imaging-findings-and-pathologic-correlation
#3
REVIEW
Pietro Valerio Foti, Renato Farina, Stefano Palmucci, Ilenia Anna Agata Vizzini, Norma Libertini, Maria Coronella, Saveria Spadola, Rosario Caltabiano, Marco Iraci, Antonio Basile, Pietro Milone, Antonio Cianci, Giovanni Carlo Ettorre
OBJECTIVE: We illustrate the magnetic resonance imaging (MRI) features of endometriosis. BACKGROUND: Endometriosis is a chronic gynaecological condition affecting women of reproductive age and may cause pelvic pain and infertility. It is characterized by the growth of functional ectopic endometrial glands and stroma outside the uterus and includes three different manifestations: ovarian endometriomas, peritoneal implants, deep pelvic endometriosis. The primary locations are in the pelvis; extrapelvic endometriosis may rarely occur...
February 15, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29450624/-intraoperative-optical-coherence-tomography-in-explorative-vitrectomy-in-patients-with-vitreous-haemorrhage-a-case-series
#4
D Heinrich, S Bohnacker, M A Nasseri, N Feucht, C P Lohmann, M Maier
BACKGROUND: High-resolution spectral domain optical coherence tomography (SD-OCT) is a gold standard technique for diagnosis, management and monitoring of patients with vitreoretinal diseases. Preoperative diagnostics for evaluation of intraocular and retinal status in patients with vitreous haemorrhage are limited, thus final therapeutic decisions can only be made during explorative vitrectomy. We evaluated the use of intraoperative SD-OCT (iSD-OCT) as a real-time additional diagnostic tool during explorative vitrectomy in patients with vitreous haemorrhage...
February 15, 2018: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/29449283/clinical-validation-of-a-predictive-model-for-the-presence-of-cervical-lymph-node-metastasis-in-papillary-thyroid-cancer
#5
N U Patel, K E Lind, K McKinney, T J Clark, S S Pokharel, J M Meier, E R Stamm, K Garg, B Haugen
BACKGROUND AND PURPOSE: Ultrasound is a standard technique to detect lymph node metastasis in papillary thyroid cancer. Cystic changes and microcalcifications are the most specific features of metastasis, but with low sensitivity. This prospective study compared the diagnostic accuracy of a predictive model for sonographic evaluation of lymph nodes relative to the radiologist's standard assessment in detecting papillary thyroid cancer metastasis in patients after thyroidectomy. MATERIALS AND METHODS: Cervical lymph node sonographic images were reported by a radiologist (R method) per standard practice...
February 15, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29447724/no-127-the-evaluation-of-stress-incontinence-prior-to-primary-surgery
#6
Scott A Farrell
OBJECTIVE: To provide clinical guidelines for the evaluation of women with stress urinary incontinence prior to primary anti-incontinence surgery. OPTIONS: The modalities of evaluation range from basic pelvic examination through to the use of adjuncts including ultrasound and urodynamic testing. OUTCOMES: These guidelines provide a comprehensive approach to the preoperative evaluation of urinary incontinence to ensure that excessive evaluation is avoided without sacrificing diagnostic accuracy...
February 2018: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/29447720/no-257-ultrasonographic-cervical-length-assessment-in-predicting-preterm-birth-in-singleton-pregnancies
#7
Kenneth Lim, Kimberly Butt, Joan M Crane
OBJECTIVES: To review (1) the use of ultrasonographic-derived cervical length measurement in predicting preterm birth and (2) interventions associated with a short cervical length. OUTCOMES: Reduction in rates of prematurity and/or better identification of those at risk, as well as possible prevention of unnecessary interventions. EVIDENCE: Published literature was retrieved through searches of PubMed and The Cochrane Library up to December 2009, using appropriate controlled vocabulary and key words (preterm labour, ultrasound, cervix, incompetent cervix, transvaginal, transperineal, cervical length, fibronectin)...
February 2018: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/29446677/how-to-integrate-cell-free-dna-screening-with-sonographic-markers-for-aneuploidy-an-update
#8
Thomas C Winter, Nancy C Rose
OBJECTIVE: The sonologist detects a so-called "soft marker" during approximately 10% of routine second-trimester anatomy examinations and is often uncertain about what further management is appropriate. This article will specifically address the management of patients with sonographic markers for six common entities: choroid plexus cysts (CPCs), ventriculomegaly (VM), echogenic intracardiac focus (EIF), urinary tract dilation (UTD), fetal echogenic bowel (FEB), and femoral and humeral shortening...
February 15, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29446670/diagnostic-performance-of-margin-features-in-thyroid-nodules-in-prediction-of-malignancy
#9
Sean M Siebert, Adam J Gomez, Tie Liang, Ali M Tahvildari, Terry S Desser, R Brooke Jeffrey, Aya Kamaya
OBJECTIVE: The purpose of this study was to evaluate thyroid nodule margins for specific morphologic features and determine the diagnostic performance of these features in differentiating papillary carcinoma from benign thyroid nodules. MATERIALS AND METHODS: Nodules measuring 1-3 cm in largest diameter that had been evaluated with high-resolution ultrasound (12-18 MHz) and ultrasound-guided biopsy with definitive pathologic diagnosis were analyzed. Three blinded board-certified readers evaluated high-resolution images of each nodule for jagged edges, lobulated borders, and curved borders along their margins...
February 15, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29444155/conjunctival-melanocytic-naevus-diagnostic-value-of-anterior-segment-optical-coherence-tomography-and-ultrasound-biomicroscopy
#10
Eszter Vizvári, Ákos Skribek, Nóra Polgár, András Vörös, Pál Sziklai, Edit Tóth-Molnár
PURPOSE: Conjunctival naevi are the most frequently diagnosed primary melanocytic lesions of the conjunctiva. The clinical manifestations are greatly variable which may result in diagnostic difficulties and differential diagnostic confusions. Therefore aims of the present study were: 1) to assess the morphologic features of conjunctival naevi; 2) to delineate the anterior segment optical coherence tomography (AS-OCT) characteristics of these lesions; 3) to compare AS-OCT and ultrasound biomicroscopy (UBM) as diagnostic tools in these alterations and 4) to correlate histological results with the AS-OCT pictures in case of surgically excised naevi...
2018: PloS One
https://www.readbyqxmd.com/read/29441430/prenatal-diagnosis-of-apert-syndrome-using-ultrasound-magnetic-resonance-imaging-and-three-dimensional-virtual-physical-models-three-case-series-and-literature-review
#11
Heron Werner, Pedro Castro, Pedro Daltro, Jorge Lopes, Gerson Ribeiro, Edward Araujo Júnior
OBJECTIVE: This aimed to describe the prenatal diagnosis of three cases of Apert syndrome using two-dimensional (2D) and three-dimensional (3D) ultrasound, magnetic resonance imaging (MRI), and 3D virtual/physical models. METHODS: We retrospectively analyzed three cases of Apert syndrome at our service. The prenatal diagnostic methods used were 2D ultrasound, 3D ultrasound in conventional and HDlive rendering modes, T2-weighted MRI sequences, and 3D virtual/physical models from MRI or 3D ultrasound scan data...
February 13, 2018: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29440962/focal-achalasia-case-report-and-review-of-the-literature
#12
Marcus Joachim Herzig, Radu Tutuian
Esophageal achalasia is a primary smooth muscle motility disorder specified by aperistalsis of the tubular esophagus in combination with a poorly relaxing and occasionally hypertensive lower esophageal sphincter (LES). These changes occur secondary to the destruction of the neural network coordinating esophageal peristalsis and LES relaxation (plexus myentericus). There are limited data on segmental involvement of the esophagus in adults. We report on the case of a 54-year-old man who presented initially with complete aperistalsis limited to the distal esophagus...
2018: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29439780/evolving-imaging-techniques-for-staging-axillary-lymph-nodes-in-breast-cancer
#13
REVIEW
S Lowes, A Leaver, K Cox, K Satchithananda, D Cosgrove, A Lim
The presence and extent of axillary nodal metastases at the time of breast cancer diagnosis is a critical factor in disease prognosis and plays a central role in deciding the best treatment for patients. Accurate assessment of the axilla is therefore an essential component in staging breast cancer. Over the years, axillary staging has evolved from surgical axillary lymph node dissection (ALND), with its numerous associated long-term complications, to the much less-radical surgical sentinel lymph node excision biopsy (SLNB), the current reference standard...
February 10, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29439729/application-of-neural-networks-for-classification-of-patau-edwards-down-turner-and-klinefelter-syndrome-based-on-first-trimester-maternal-serum-screening-data-ultrasonographic-findings-and-patient-demographics
#14
Aida Catic, Lejla Gurbeta, Amina Kurtovic-Kozaric, Senad Mehmedbasic, Almir Badnjevic
BACKGROUND: The usage of Artificial Neural Networks (ANNs) for genome-enabled classifications and establishing genome-phenotype correlations have been investigated more extensively over the past few years. The reason for this is that ANNs are good approximates of complex functions, so classification can be performed without the need for explicitly defined input-output model. This engineering tool can be applied for optimization of existing methods for disease/syndrome classification. Cytogenetic and molecular analyses are the most frequent tests used in prenatal diagnostic for the early detection of Turner, Klinefelter, Patau, Edwards and Down syndrome...
February 13, 2018: BMC Medical Genomics
https://www.readbyqxmd.com/read/29439611/do-not-underestimate-the-femoral-pseudoaneurysm
#15
Maria Stolt, Ruediger Braun-Dullaeus, Joerg Herold
In addition to haematoma and arteriovenous fistula, the iatrogenic pseudoaneurysm is a common complication of vascular access that is caused by a perforation in the arterial wall. Iatrogenic pseudoaneurysms can progress in size and lead to rupture and active bleeding. Over the previous few decades, therapeutic methods have evolved from surgical repair to less invasive options, such as ultrasound-guided compression therapy (UGCT) and ultrasound-guided thrombin injection (UGTI). This paper presents an overview of the diagnostic and treatment modalities used in femoral pseudoaneurysms as well as a comprehensive summary of previous studies that analysed the success and complication rates of UGCT and UGTI...
February 14, 2018: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/29438133/accuracy-of-ultrasound-exam-performed-by-emergency-medicine-versus-radiology-residents-in-the-diagnosis-of-acute-appendicitis
#16
Marzieh Shahbazipar, Javad Seyedhosseini, Elnaz Vahidi, Hojat Sheikh Motahar Vahedi, Amirhossein Jahanshir
BACKGROUND: Although the traditional approach to the diagnosis of acute appendicitis (AA) is using clinical methods, experience has shown that strict reliance on clinical data can lead to mismanagement or unnecessary surgery. OBJECTIVE: The objective of this study was to determine the total agreement of ultrasound (US) results in AA performed by emergency medicine (EM) versus radiology residents in emergency department. PATIENTS AND METHODS: In this cross-sectional study, 121 patients with AA suspicion underwent an US exam by both trained EM and radiology residents in emergency department...
February 12, 2018: European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine
https://www.readbyqxmd.com/read/29436848/image-guided-biopsy-of-small-%C3%A2-4cm-renal-masses-the-effect-of-size-and-anatomical-location-on-biopsy-success-rate-and-complications
#17
Matthew Seager, Uday Patel, Christopher Anderson, Michael Gonsalves
Objective To study the influence of tumour diameter and anatomy on the success and complication rates of small renal mass (SRM,≤4 cm) core biopsy Methods Retrospective analysis of SRMs that underwent ultrasound or computed tomography-(CT) guided biopsy. Diagnostic and complication rates were compared according to tumour size (sub-categorised as axial diameter ≤2 cm,>2 to≤3 cm,>3 to≤4 cm) and anatomical disposition (exophytic/endophytic, centrality, polar location and anterior/posterior). Results Ninety-four patients (54 male; age range 21...
February 13, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29436307/cancers-of-the-major-salivary-gland
#18
Eugene Son, Aru Panwar, Charles H Mosher, Daniel Lydiatt
Salivary gland malignancies are rare tumors that comprise multiple histologic entities with diverse clinical behavior. Mucoepidermoid carcinoma is the most frequent primary salivary malignancy, followed by adenoid cystic and acinic cell carcinoma. Although most salivary malignancies are asymptomatic, presentation with a rapidly enlarging mass may be accompanied by pain, functional neurologic deficits, soft-tissue invasion, or nodal enlargement. Assessment of clinical behavior and physical exam greatly contributes to diagnostic workup...
February 2018: Journal of Oncology Practice
https://www.readbyqxmd.com/read/29436119/laparoscopic-diagnosis-and-treatment-of-an-isolated-epithelioid-trophoblastic-tumor-in-recto-uterine-pouch
#19
Fang Jiang, Yang Xiang, Li-Na Guo
A 30-year-old Chinese woman with irregular vaginal bleeding was admitted to our department. Serum β-human chorionic gonadotropin (β-hCG) was moderately elevated, and ultrasound and magnetic resonance imaging revealed an irregular, retro-uterine lesion without intrauterine pregnancy. Ectopic pregnancy was the primary consideration, with trophoblastic tumor being another possibility. Laparoscopy revealed a 2 × 3 × 3 cm3 irregular, infiltrating, yellow-white lesion in the left recto-uterine pouch, which was completely resected without rectal damage...
February 13, 2018: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29435150/blood-brain-barrier-disruption-induced-by-diagnostic-ultrasound-combined-with-microbubbles-in-mice
#20
Bingxia Zhao, Yihan Chen, Jinfeng Liu, Li Zhang, Jing Wang, Yali Yang, Qing Lv, Mingxing Xie
Objective: To investigate the effects of the microbubble (MB) dose, mechanism index (MI) and sonication duration on blood-brain barrier (BBB) disruption induced by diagnostic ultrasound combined with MBs as well as to investigate the potential molecular mechanism. Results: The extent of BBB disruption increased with MB dose, MI and sonication duration. A relatively larger extent of BBB disruption associated with minimal tissue damage was achieved by an appropriate MB dose and ultrasound exposure parameters with diagnostic ultrasound...
January 12, 2018: Oncotarget
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