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Ultraschall in der Medizin

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https://www.readbyqxmd.com/read/29232725/value-of-contrast-enhanced-ultrasound-quantification-criteria-for-identifying-patients-not-responding-to-bevacizumab-based-therapy-for-colorectal-liver-metastases
#1
François Tranquart, Paul-Armand Dujardin, Olivier Bouché, Claude Marcus, Christophe Borg, Philippe Manzoni, Jean-Yves Douillard, Catherine Labbe-Devilliers, Eric Terrebonne, Denis Smith, Herve Trillaud, Olivier Capitain, Cristophe Aubé, Jean-Philippe Spano, Olivier Lucidarme, Aurélie Ferru, Jean-Pierre Tasu, Sylvain Manfredi, Aurore Bleuzen, Julie Léger, Thierry Lecomte
Purpose To evaluate changes in tumor vascularization parameters based on contrast-enhanced ultrasound (CEUS) quantification criteria of at least one visible liver metastasis as an early predictor of non-response to chemotherapy, including bevacizumab for colorectal cancer (CRC) liver metastases. Materials and Methods This multicenter prospective study included patients who received first-line bevacizumab-based chemotherapy. Tumor enhancement measured using CEUS within one liver metastasis and in relation to the surrounding healthy liver was quantified within 8 days before the first infusion of bevacizumab (E0), 24 hours after the end of the first infusion of bevacizumab (E1), in the 24 hours before the 2nd and 3 rd infusion of bevacizumab on day 15 (E2) and day 30 (E3), respectively, and after 2 months of treatment (E4)...
December 12, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29232724/inter-rater-reliability-of-air-saline-hycosy-hyfosy-and-hyfosy-combined-with-power-doppler-for-screening-tubal-patency
#2
Inga Ludwin, Artur Ludwin, Carolina O Nastri, Marcela A Coelho Neto, Jan Kottner, Wellington P Martins
Purpose To estimate the inter-observer reliability and agreement of offline analyses of three different ultrasound techniques for assessing tubal patency. Methods 100 tubes (n = 100) in 50 women were evaluated for tubal patency between November 2013 and July 2015 using ultrasound as index tests and laparoscopy as the reference standard. Three different ultrasound techniques were applied: two-dimensional grayscale ultrasound using air + saline as the contrast media (2D-HyCoSy); two- and three-dimensional grayscale ultrasound using foam as the contrast media (2 D/3D-HyFoSy); and the same technique but adding bi-directional power Doppler (2 D/3D-Doppler-HyFoSy)...
December 12, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29232723/biopsy-of-liver-target-lesions-under-contrast-enhanced-ultrasound-guidance-a-multi-center-study
#3
Giampiero Francica, Maria Franca Meloni, Ilario de Sio, Fulvia Terracciano, Eugenio Caturelli, Laura Riccardi, Paola Roselli, Maddalena Diana Iadevaia, Mariano Scaglione, Giovanni Lenna, Jason Chiang, Maurizio Pompili
Purpose To retrospectively characterize the prevalence and impact of contrast-enhanced ultrasound (CEUS) as a guidance technique for the biopsy of liver target lesions (LTLs) at six interventional ultrasound centers. Materials and Methods The six participating centers retrospectively selected all patients in whom biopsy needles were positioned in LTLs during CEUS. The prevalence of CEUS-guided biopsies at each center between 2005 and 2016, contrast agent consumption, procedure indications, diagnostic yield and complications were assessed...
December 12, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29161752/prenatal-megacystis-is-prediction-of-outcome-and-renal%C3%A2-function-possible
#4
Regina Tschannen, Rita Gobet, Josef Wisser
Objective To assess prenatal prognostic criteria for fetuses with megacystis in order to counsel parents. Methods In a retrospective observational study at a single tertiary referral center, we assessed the clinical course of 53 fetuses with megacystis cared for at the Department of Obstetrics of the University Hospital Zurich between 1995 and 2008 and followed them up for 2 to 12 years. We determined fetal karyotype, amniotic fluid volume and fetal urinary biochemistry as prenatal prognostic factors...
November 21, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29161751/the-jellyfish-sign-a-new-sonographic-cervical-marker-to%C3%A2-predict-maternal-morbidity-in-abnormally-invasive-placenta-previa
#5
Emma Bertucci, Filomena Giulia Sileo, Giovanni Grandi, Valentina Fenu, Carlotta Cani, Luciano Mancini, Ema Mataca, Fabio Facchinetti
Purpose To investigate the value of a new cervical sonographic sign, called the jellyfish sign (JS), for predicting the risk of maternal morbidity in cases of abnormally invasive placenta (AIP) previa totalis. Materials and Methods Retrospective evaluation of transvaginal (TV) and transabdominal (TA) scans performed in all singleton pregnancies with placenta previa totalis. JS, i. e. the absence of the normal linear demarcation between the placenta previa and the cervix, was evaluated by TV scans. The presence/severity of AIP and outcomes of maternal morbidity were related to this sign...
November 21, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29161750/false-negative-nipt-result-for-trisomy-21
#6
Kai-Sven Heling, Rabih Chaoui, Martina Flöter
No abstract text is available yet for this article.
November 21, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29108077/characterization-of-focal-liver-lesions-using-ceus-and-mri-with-liver-specific-contrast-media-experience-of-a-single-radiologic-center
#7
Lukas Philipp Beyer, Florian Wassermann, Benedikt Pregler, Katharina Michalik, Janine Rennert, Isabel Wiesinger, Christian Stroszczynski, Philipp Wiggermann, Ernst Michael Jung
Aim The purpose of this study was to compare contrast-enhanced ultrasound (CEUS), magnetic resonance imaging (MRI) using liver-specific contrast agent and a combination of both for the characterization of focal liver lesions (FLL). Methods 83 patients with both benign and malignant liver lesions were examined using CEUS and MRI after the intravenous administration of liver-specific contrast media. All patients had inconclusive results from prior imaging examinations. Histopathological specimens could be obtained in 53 patients...
November 6, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29108076/significance-of-thoracic-and-lung-ultrasound-in-thoracic-surgery
#8
Thomas Günter Lesser
No abstract text is available yet for this article.
November 6, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29076121/-the-fetal-profile-more-than-just-nt
#9
Markus Hoopmann, Karl Oliver Kagan
No abstract text is available yet for this article.
October 26, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29069669/ultrasound-of-the-major-salivary-glands-is-a-reliable-imaging-technique-in-patients-with-clinically-suspected-primary-sj%C3%A3-gren-s-syndrome
#10
Konstantina Delli, Suzanne Arends, Jolien F van Nimwegen, Pieter U Dijkstra, Alja J Stel, Frederik K L Spijkervet, Hendrika Bootsma, Arjan Vissink
Objective To assess the inter- and intraobserver reliability of ultrasound of major salivary glands in patients clinically suspected of having primary Sjögren's syndrome (pSS) as well as to assess sources of variation in outcomes of ultrasonographic evaluation. Methods 80 consecutive outpatients with clinically suspected pSS underwent ultrasound evaluation. The following ultrasound variables of the parotid and submandibular salivary glands were assessed: echogenicity, parenchymal homogeneity, presence of hypoechogenic areas, hyperechogenic reflections and clearness of posterior glandular border, according to the scoring system of Hocevar et al...
October 25, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28950381/cost-effectiveness-of-mobile-app-guided-training-in-extended-focused-assessment-with-sonography-for-trauma-efast-a-randomized-trial
#11
Philip Mørkeberg Nilsson, Tobias Todsen, Yousif Subhi, Ole Graumann, Christian Pallson Nolsøe, Martin Grønnebæk Tolsgaard
Purpose Ultrasound training is associated with a long learning curve and use of substantial faculty resources. Self-directed ultrasound training may decrease the need for faculty-led teaching. Mobile apps seem promising for use in self-directed ultrasound training, but no studies have examined the cost-effectiveness of mobile app-guided training versus traditional formats such as textbook-guided training. This study evaluated the cost-effectiveness of mobile app-guided versus textbook-guided ultrasound training...
September 26, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28946152/percutaneous-treatment-of-malignant-liver-lesions-evaluation-of-success-using-contrast-enhanced-ultrasound-ceus-and-perfusion-software
#12
Isabel Wiesinger, Philipp Wiggermann, Nicola Zausig, Lukas P Beyer, Bernd Salzberger, Christian Stroszczynski, Ernst Michael Jung
Aim Using new perfusion software for evaluation of the success of percutaneous treatments of malignant liver tumors with CEUS. Materials and Methods Retrospective analysis of 88 patients (74 male, 14 female; 30 - 84 years) with 165 malignant liver lesions. The lesions were 57 metastases and 108 HCCs. The success of interventional treatment (IRE n = 47; RFA n = 38; MWA n = 44; TACE n = 36) was evaluated by CEUS and perfusion software (VueBox(®)). CEUS was performed after injection of 1 - 2...
September 25, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28946151/the-incidence-of-chromosomal-aberrations-in-prenatally-diagnosed-isolated-agenesis-of-the-corpus-callosum
#13
Anna Marlene Rüland, Karl-Philipp Gloning, Matthias Albig, Karl-Oliver Kagan, Rüdiger Hammer, Michael Schälike, Christoph Berg, Ulrich Gembruch, Annegret Geipel
Purpose To establish the prevalence of chromosomal aberrations in fetuses with an apparently isolated agenesis of the corpus callosum (ACC) on prenatal ultrasound. Materials & Methods This was a retrospective study of complete isolated ACC at the time of ultrasound evaluation with respect to karyotype information. Within this group, a subgroup with non-malformation minor abnormalities, such as a single umbilical artery (SUA), polyhydramnios or fetal growth restriction (FGR), was investigated. Results Complete ACC was diagnosed in 343 cases...
September 25, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28934815/-the-fetal-profile-more-than-just-nt
#14
Markus Hoopmann, Karl Oliver Kagan
The midsagittal view of the fetal profile is essential in first trimester screening at 11 + 0 to 13 + 6 weeks of gestation. None of the standard sections in prenatal medicine is as well defined and undergoes such a strong quality assurance program. These requirements were recently challenged by the introduction of cell-free DNA screening. The fetal profile view was previously only needed for the appropriate measurement of the fetal nuchal translucency thickness. In recent years, it became evident that there are many more anomalies or markers for fetal defects that can be seen in this section such as spina bifida, facial clefts or retrognathia...
September 21, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28934814/prenatal-diagnosis-of-agenesis-of-ductus-venosus-a-retrospective-study-of-anatomic-variants-associated-anomalies-and-impact-on-postnatal-outcome
#15
Brigitte Strizek, Aikaterini Zamprakou, Ingo Gottschalk, Maria Roethlisberger, Astrid Hellmund, Andreas Müller, Ulrich Gembruch, Annegret Geipel, Christoph Berg
Purpose To assess the anatomic variants, associated anomalies and postnatal outcome of fetuses with a prenatally diagnosed agenesis of ductus venosus (ADV). Materials and Methods Retrospective study of 119 cases with agenesis of ductus venosus diagnosed by prenatal ultrasound in two tertiary referral centers from 2006 to 2014. The type and location of the umbilical venous drainage site was noted. Charts were reviewed for associated structural or chromosomal anomalies, pregnancy outcome and postnatal course...
September 21, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28934813/postpartum-retained-products-of-conception-a-novel-approach-to-follow-up-and-early-diagnosis
#16
Noam Smorgick, Ayala Krakov, Ron Maymon, Moshe Betser, Josef Tovbin, Moty Pansky
Purpose To investigate whether ultrasound follow-up for the detection of postpartum retained products of conception (RPOC) in women considered at risk for this condition may allow for early diagnosis. Methods Parturients at risk for RPOC underwent an ultrasound exam on the second postpartum day. Based on the ultrasound findings, women were either: (1) discharged to routine postpartum care in cases of normal scans, (2) invited for follow-up in cases of abnormal scans. We retrospectively analyzed the rates of women requiring uterine evacuation due to persistent abnormal scans...
September 21, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28934812/prediction-of-pathological-complete-response-to-neoadjuvant-chemotherapy-for-primary-breast-cancer-comparing-interim-ultrasound-shear-wave-elastography-and-mri
#17
Andrew Evans, Patsy Whelehan, Alastair Thompson, Colin Purdie, Lee Jordan, Jane Macaskill, Shelley Waugh, Frances Fuller-Pace, Katrin Brauer, Sarah Vinnicombe
Background Prediction of pathological complete response (pCR) of primary breast cancer to neoadjuvant chemotherapy (NACT) may influence planned surgical approaches in the breast and axilla. The aim of this project is to assess the value of interim shear wave elastography (SWE), ultrasound (US) and magnetic resonance imaging (MRI) after 3 cycles in predicting pCR. Methods 64 patients receiving NACT had baseline and interim US, SWE and MRI examinations. The mean lesion stiffness at SWE, US and MRI diameter was measured at both time points...
September 21, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28946158/a-rare-case-of-guyon-s-canal-syndrome-caused-by-cystic-adventitia-degeneration-high-resolution-ultrasound-findings
#18
Christopher Pivec, Tarvo Sillat, Thomas Moritz, Georg Riegler, Josif Nanobachvili, Gerd Bodner
No abstract text is available yet for this article.
October 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28946157/duplex-sonographic-diagnosis-of-perinatal-hemorrhagic-stroke
#19
Karl-Heinz Deeg
Children are particularly at risk for stroke in the neonatal period. Neonatal hemorrhagic stroke is rarer than ischemic stroke. The incidence is 40.7/100 000 live births. Hemorrhagic stroke is caused by a disruption in venous drainage usually due to local thrombosis. As a result of the nonspecific clinical symptoms in this age group, diagnosis is usually made too late. The only relatively specific symptom is a cerebral seizure during the first week of life. Therefore, stroke should be ruled out by diagnostic imaging in the case of any seizure in the first days of life...
October 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28946156/who-s-doing-your-scan-a-european-perspective-on%C3%A2-ultrasound-services
#20
Hazel M Edwards, Paul S Sidhu
No abstract text is available yet for this article.
October 2017: Ultraschall in der Medizin
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