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Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine

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https://www.readbyqxmd.com/read/28631274/prenatal-diagnosis-of-fetal-goitrous-hypothyroidism-in-a-euthyroid-mother-a-management-challenge
#1
LETTER
Gabrielle Aubry, Mary Pontvianne, Marion Chesnais, Anne Sophie Weingertner, Fernando Guerra, Romain Favre
Although rare, congenital hypothyroidism with a goiter can jeopardize fetal and neonatal outcomes. Prenatal invasive procedures may decrease perinatal morbidity, but indications are still controversial. We report a case of fetal goitrous hypothyroidism diagnosed at 22 weeks' gestation in an euthyroid mother. Cordocentesis confirmed fetal hypothyroidism, and intra-amniotic injections of l-thyroxine led to normalization of the size of the thyroid. The patient gave birth by vaginal delivery to a neonate with no palpable goiter or clinical sign of hypothyroidism...
June 20, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28627724/comparative-echogenicity-of-an-epidural-catheter-and-2-new-catheters-designed-for-ultrasound-guided-continuous-peripheral-nerve-blocks
#2
Daniel M Moy, T Edward Kim, T Kyle Harrison, Jody C Leng, Brendan Carvalho, Steven K Howard, Cynthia Shum, Alex Kou, Edward R Mariano
Visualization of the catheter during ultrasound-guided continuous nerve block performance may be difficult but is an essential skill for regional anesthesiologists. The objective of this in vitro study was to evaluate 2 newer catheters designed for enhanced echogenicity and compare them to a widely used catheter not purposely designed for ultrasound guidance. Outcomes were the numbers of first-place rankings among all 3 catheters and scores on individual echogenicity criteria as assessed by 2 blinded reviewers...
June 19, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28627028/common-findings-in-late-gestation-fetal-echocardiography
#3
Lauren Tague, Mary T Donofrio, Amanda Fulgium, Robert McCarter, Catherine Limperopoulos, David N Schidlow
OBJECTIVES: Fetal echocardiography provides detailed information about cardiac structure and function in utero. Limited information is available regarding normal findings late in pregnancy. We therefore sought to identify and describe common cardiac findings in late gestation. METHODS: Fetuses with structurally normal hearts were identified in mid gestation within a subset of pregnant women in a prospective study. The atrioventricular valves, right and left atria, aortic isthmus and ductus arteriosus dimensions and flow abnormalities, aneurysm of the septum primum, and presence and grade of tricuspid regurgitation were assessed throughout pregnancy...
June 19, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28627012/effect-of-betamethasone-on-fetal-pulmonary-and-umbilical-artery-doppler-velocimetry-and-relationship-with-respiratory-distress-syndrome-development
#4
Emre Sinan Güngör, Gülşah İlhan, Hüseyin Gültekin, Ali Galip Zebitay, Serdar Cömert, Fatma Ferda Verit
OBJECTIVES: Respiratory distress syndrome (RDS) is a major cause of neonatal morbidity and mortality. It is primarily a disease of premature neonates. The aim of this study was to evaluate the impact of maternal betamethasone administration on the fetal pulmonary arteries (PAs) and umbilical arteries (UAs) and the correlation between RDS development and PA Doppler results. METHODS: Forty singleton pregnancies between 24 and 34 gestational weeks with a diagnosis of preterm birth were included prospectively...
June 19, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28626910/intravenous-and-intracavitary-use-of-contrast-enhanced-ultrasound-in-the-evaluation-and-management-of-complicated-pediatric-pneumonia
#5
Annamaria Deganello, Vasileios Rafailidis, Maria E Sellars, Aikaterini Ntoulia, Kleanthi Kalogerakou, Gary Ruiz, David O Cosgrove, Paul S Sidhu
Pediatric pneumonia can be complicated by necrotizing pneumonia or a parapneumonic effusion either in the form of an empyema or a clear effusion. Ultrasonography (US) and computed tomography represent well-established modalities for evaluation of complicated pediatric pneumonia. Contrast-enhanced ultrasound (CEUS) was recently introduced and is gaining increasing acceptance in pediatric imaging. In this case series, we present our initial experience with both intravenous and intracavitary use of CEUS in children with complicated pneumonia...
June 19, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28626903/economical-sponge-phantom-for-teaching-understanding-and-researching-a-and-b-line-reverberation-artifacts-in-lung-ultrasound
#6
Christian Blüthgen, Sergio Sanabria, Thomas Frauenfelder, Volker Klingmüller, Marga Rominger
This project evaluated a low-cost sponge phantom setup for its capability to teach and study A- and B-line reverberation artifacts known from lung ultrasound and to numerically simulate sound wave interaction with the phantom using a finite-difference time-domain (FDTD) model. Both A- and B-line artifacts were reproducible on B-mode ultrasound imaging as well as in the FDTD-based simulation. The phantom was found to be an easy-to-set up and economical tool for understanding, teaching, and researching A- and B-line artifacts occurring in lung ultrasound...
June 19, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28603880/a-convex-hull-based-new-metric-for-quantification-of-bladder-wall-irregularity-in-pediatric-patients-with-congenital-anomalies-of-the-kidney-and-urinary-tract
#7
Joseph N Stember, Jeffrey Newhouse, Gerald Behr, Shumyle Alam
OBJECTIVES: Early identification and quantification of bladder damage in pediatric patients with congenital anomalies of the kidney and urinary tract (CAKUT) is crucial to guiding effective treatment and may affect the eventual clinical outcome, including progression of renal disease. We have developed a novel approach based on the convex hull to calculate bladder wall trabecularity in pediatric patients with CAKUT. The objective of this study was to test whether our approach can accurately predict bladder wall irregularity...
June 12, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28603855/stress-fractures-of-the-calcaneus-diagnosed-by-sonography-report-of-8-cases
#8
Stefano Bianchi, Dien Hung Luong
We present a retrospective review of 8 patients (6 women and 2 men, with an age range of 46-80 years; mean age, 60.2 years) in whom sonography was used to diagnose a calcaneal stress fracture. Sonography was performed because of a clinical suspicion of soft tissue injuries. Two patients were first assessed by standard radiography; for the remaining patients, sonography was the first imaging technique used. Patients were subsequently examined by magnetic resonance imaging, except for 1 patient in whom the diagnosis was made only on a clinical-sonographic correlation...
June 12, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28600899/inhibitory-effect-of-low-intensity-pulsed-ultrasound-on-the-expression-of-lipopolysaccharide-induced-inflammatory-factors-in-u937-cells
#9
Xuan Zhang, Bo Hu, Jicheng Sun, Jie Li, Shan Liu, Jinlin Song
OBJECTIVES: Low-intensity pulsed ultrasound (US) has been reported to promote periodontal tissue regeneration and reduce inflammation in soft tissues and in bone infectious diseases. Here we investigated the effect of low-intensity pulsed US on the expression of lipopolysaccharide (LPS)-induced inflammatory factors in U937 macrophage cells. METHODS: U937 cells were stimulated with different concentrations of LPS and exposed to different intensities of low-intensity pulsed US...
June 10, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28600890/pilot-study-of-a-software-supported-protocol-for-second-trimester-ultrasound-screening
#10
Thierry Bultez, Jean-Pierre Bernard, Ulrike Metzger, Yves Ville, Laurent Julien Salomon
OBJECTIVES: To evaluate the feasibility and impact of using a software-supported protocol for routine second-trimester ultrasound scanning. METHODS: We conducted a comparative observational study of 2 sets of 25 randomly selected normal routine second-trimester examinations performed by the same expert sonographer before and 1 year after the introduction of a software-supported protocol. The scanning protocol was identical during both periods and conformed to International Society of Ultrasound in Obstetrics and Gynecology guidelines...
June 10, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28593711/iniencephaly-apertus-prenatal-autopsy-by-sonography-and-embryoscopy
#11
LETTER
Ramiro Diaz Primera, Enrique Gil Guevara, Freddy González Arias, Carlos Bermúdez González
No abstract text is available yet for this article.
June 8, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28593710/ultrasound-guided-subgluteal-sciatic-nerve-perineural-injection-report-on-safety-and-efficacy-at-a-single-institution
#12
O Kenechi Nwawka, Russell Meyer, Theodore T Miller
OBJECTIVES: To determine the safety and efficacy of ultrasound (US)-guided subgluteal sciatic nerve injections. METHODS: A retrospective chart review of US-guided subgluteal sciatic nerve injections at our institution was performed. RESULTS: Of 221 US-guided subgluteal sciatic nerve injections, 100% achieved technical success, with no postprocedure complications. Sixty-eight percent of patients with follow-up reported symptom relief. Most patients with no relief had suboptimal preprocedure screening...
June 8, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28593705/frequency-domain-analysis-of-multiwavelength-photoacoustic-signals-for-differentiating-among-malignant-benign-and-normal-thyroids-in-an-ex-vivo-study-with-human-thyroids
#13
Saugata Sinha, Vikram S Dogra, Bhargava K Chinni, Navalgund A Rao
OBJECTIVES: This study investigated the capability of spectral parameters, extracted by frequency domain analysis of photoacoustic signals, to differentiate among malignant, benign, and normal thyroid tissue. METHODS: We acquired multiwavelength photoacoustic images of freshly excised thyroid specimens collected from 50 patients who underwent thyroidectomy after having a diagnosis of suspected thyroid lesions. A thyroid cytopathologist marked histologic slides of each tissue specimen...
June 8, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28593638/thrombotic-and-nonthrombotic-types-of-intratesticular-varicoceles-value-of-sonography-for-the-diagnosis
#14
Emre Ünal
An intratesticular varicocele is an uncommon entity, and its clinical importance remains unclear. The diagnosis can be made in the case of an intratesticular tortuous vein that shows retrograde flow on color Doppler sonography. The anatomic location and course of the intratesticular varicocele within the testicular parenchyma and its association with the existence of an ipsilateral extratesticular varicocele may vary among patients. The pathophysiologic mechanisms remain unclear; however, it may be questioned whether there is an association between testicular atrophy and intratesticular varicocele development...
June 8, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28586506/second-trimester-uterine-model-for-teaching-ultrasound-guided-obstetric-procedures
#15
Susan E Dalton, Anthony R Gregg, Monique Ho
The declining number of ultrasound-guided obstetric procedures in clinical practice mandates a shift toward simulation-based teaching. Current uterine simulation aids are animal tissue-sourced or expensive, and improvement is needed. We describe a low-cost reusable uterine model with "fetus," cord and skin, constructed from synthetic gel and silicone rubber. Ultrasound appearance and tactile feedback approximate clinical use, and all parts of the model are portable, durable, and shelf-stable. Those made of ballistics gel can be recycled numerous times without noticeable effect...
June 6, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28586157/role-of-point-shear-wave-elastography-in-the-determination-of-the-severity-of-fibrosis-in-pediatric-liver-diseases-with-pathologic-correlations
#16
Mehmet Burak Özkan, Meltem Ceyhan Bilgici, Esra Eren, Gonul Caltepe, Gulay Yilmaz, Cengiz Kara, Seda Gun
OBJECTIVES: Our aims in this study were as follows: (1) to determine the cutoff value that can distinguish between advanced liver fibrosis and normal liver tissue for two different elastographic techniques; (2) to determine the cutoff value that can distinguish mild liver fibrosis from normal liver tissue for the techniques; and (3) to assess tissue stiffness in nonalcoholic fatty liver disease (NAFLD). METHODS: Seventy-five patients assessed for liver biopsy on the same day were evaluated by point shear wave elastography...
June 6, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28586152/right-upper-quadrant-pain-ultrasound-first
#17
Margarita V Revzin, Leslie M Scoutt, Joseph G Garner, Christopher L Moore
Acute right upper quadrant (RUQ) pain is a common presenting symptom in emergency departments and outpatient medical practices, and is most commonly attributable to biliary and hepatic pathology. Ultrasound should be used as a first-line imaging modality for the diagnosis of gallstones and cholecystitis, as it allows the differentiation of medical and surgical causes of upper abdominal pathology, and in many circumstances is sufficient to guide patient management. Knowledge of strengths and limitations of ultrasound in the evaluation of RUQ is paramount in correct diagnosis...
June 6, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28586146/locating-the-level-and-extent-of-congenital-high-airway-obstruction-fluid-in-the-airway-tract-as-reference-points
#18
Mamatha Gowda, Shilpa Gupta, Ashraf Ali, Shanthi Paranthaman
Described here are a series of four cases of congenital high airway obstruction in the fetus. All of the patients presented in the second trimester and all had hydrops fetalis. Three cases had bilateral hyperinflated lungs, midline shift of heart, flattening or inversion of the diaphragm, and fetal ascites. Autopsy was performed in one of these three and showed laryngeal atresia. In one fetus, there was only a unilateral huge enlargement of the lung with mediastinal shift. On autopsy, this fetus had atresia of right main bronchus...
June 6, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28586115/early-detection-of-postoperative-acute-kidney-injury-in-acute-stanford-type-a-aortic-dissection-with-doppler-renal-resistive-index
#19
Huai Qin, Haibo Wu, Yi Chen, Nan Zhang, Zhanming Fan
OBJECTIVES: This study aimed to evaluate the early efficiency of Doppler renal resistive index (DRRI) in prediction of acute kidney injury (AKI) after surgery in acute Stanford Type A aortic dissection (AAAD) patients. METHODS: Sixty-one AAAD patients who planned to receive Sun's surgical management were prospectively enrolled. The DRRI was measured by ultrasonography Doppler on the day before surgery (DRRIpre ), on admission to the intensive care unit (DRRIT0 ), 6 hours after surgery (DRRIT6 ), 24 hours after surgery (DRRIT24 ), and 48 hours after surgery (DRRIT48 )...
June 6, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28586113/lung-consolidation-locations-for-optimal-lung-ultrasound-scanning-in-diagnosing-pediatric-pneumonia
#20
Brendan H A Milliner, James W Tsung
OBJECTIVES: Lung ultrasound (US) has been shown to be accurate in diagnosing pneumonia in children. Evidence to inform an optimal scanning protocol is limited. Our objective is to describe an optimized lung US scanning protocol for pediatric pneumonia based on the anatomic location and transducer orientation. METHODS: We performed a secondary analysis of data and images from 2 prospective lung US studies for the emergency department diagnosis of pneumonia in children (0-21 years)...
June 6, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
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