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Diagnostic ultrasound

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https://www.readbyqxmd.com/read/28103204/transthoracic-ultrasonography-for-the-immunocompromised-patient-a-pilot-project-that-introduces-transthoracic-ultrasonography-for-the-follow-up-of-hematological-patients-in-romania
#1
Ioana Frinc, Petru Ilies, Florin Zaharie, Delia Dima, Alina Tanase, Ljubomir Petrov, Alexandru Irimie, Cristian Berce, Cosmin Lisencu, Ioana Berindan-Neagoe, Ciprian Tomuleasa, Anca Bojan
In the last decade, there is significant progress in clinical hematology with the discovery of targeted molecules and thus the achievement of both hematologic and molecular responses. Nevertheless, chemotherapy remains the treatment of choice for many types of hematological malignancies. Aggressive chemotherapy leads to immunosuppression, accompanied by a high rate of infections and an increased rate of treatment-related mortality. Invasive fungal infections, as well as more common bacterial and viral infections are frequent in immunocompromised patients as they are difficult to diagnose and treat...
January 18, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/28103129/the-role-of-urinary-kim-1-ngal-ca19-9-and-%C3%AE-2-microglobulin-in-the-assessment-of-ureteropelvic-junction-obstruction-in-adults
#2
Eduardo P Miranda, Ricardo Jordão Duarte, José de Bessa, Roberto Iglesias Lopes, Victor Srougi, Hiury Silva Andrade, Rodolfo Ast Bandeira, Marco Antônio Arap, Anuar Ibrahim Mitre, Nayara Izabel Viana, Sabrina Thalita Dos Reis, Kátia Ramos Moreira Leite, Miguel Srougi
PURPOSE: To evaluate the diagnostic properties of urinary biomarkers in adults with ureteropelvic junction obstruction: KIM-1, NGAL, CA19-9, and β2-microglobulin. We also assessed urinary biomarker concentrations following pyeloplasty. MATERIAL AND METHODS: We prospectively studied adults from December 2013 to February 2015. We included 47 patients with a mean age of 38.6 ± 12.7 years. Each patient provided four samples of voided urine for biomarker measurement, one at preoperative consultation and the others at 1, 3 and 6 months of postoperative follow-up...
January 19, 2017: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/28102968/thoracic-ultrasound-recognition-of-competence-a-position-paper-of-the-thoracic-society-of-australia-and-new-zealand
#3
Jonathan P Williamson, Scott H Twaddell, Y C Gary Lee, Matthew Salamonsen, Mark Hew, David Fielding, Phan Nguyen, Daniel Steinfort, Peter Hopkins, Nicola Smith, Christopher Grainge
The ability to perform bedside thoracic ultrasound is increasingly recognized as an essential skill for thoracic clinicians, extending the clinical examination and aiding diagnostic and therapeutic procedures. Thoracic ultrasound reduces complications and increases success rates when used prior to thoracentesis or intercostal chest tube insertion. It is increasingly difficult to defend performing these procedures without real or near-real time image guidance. To assist thoracic physicians and others achieve and demonstrate thoracic ultrasound competence, the Interventional Pulmonology Special Interest Group (IP-SIG) of the Thoracic Society of Australia and New Zealand (TSANZ) has developed a new pathway with four components: (i) completion of an approved thoracic ultrasound theory and hands-on teaching course...
February 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28102963/diagnostic-value-of-endobronchial-ultrasound-elastography-for-the-differentiation-of-benign-and-malignant-intrathoracic-lymph-nodes
#4
Potjanee Korrungruang, Viboon Boonsarngsuk
BACKGROUND AND OBJECTIVE: Endobronchial ultrasound (EBUS) findings can be used for benign/malignant differentiation of lymph nodes (LNs). Recently, EBUS elastography has been introduced as a complementary modality in the evaluation of intrathoracic lymphadenopathy. We evaluated the ability of EBUS elastography to differentiate between benign and malignant LNs. METHODS: A prospective study was conducted on patients sent for evaluation of intrathoracic lymphadenopathy...
January 19, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28102328/qualitative-and-quantitative-analysis-with-a-novel-shear-wave-speed-imaging-for-differential-diagnosis-of-breast-lesions
#5
Yu-Ping Yang, Xiao-Hong Xu, Le-Hang Guo, Ya-Ping He, Dan Wang, Bo-Ji Liu, Chong-Ke Zhao, Bao-Ding Chen, Hui-Xiong Xu
To evaluate the diagnostic performance of a new two-dimensional shear wave speed (SWS) imaging (i.e. Toshiba shear wave elastography, T-SWE) in differential diagnosis of breast lesions. 225 pathologically confirmed breast lesions in 218 patients were subject to conventional ultrasound and T-SWE examinations. The mean, standard deviation and ratio of SWS values (m/s) and elastic modulus (KPa) on T-SWE were computed. Besides, the 2D elastic images were classified into four color patterns. The area under the receiver operating characteristic (AUROC) curve analysis was performed to evaluate the diagnostic performance of T-SWE in differentiation of breast lesions...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28101365/comments-to-role-of-upper-airway-ultrasound-in-airway-management
#6
Wan-Ching Lien
Tracheal ultrasound can be an alternative diagnostic tool in airway management, besides traditional confirmatory methods such as capnography and auscultation. The standard image is a hyperechoic air-mucosa (A-M) interface with a reverberation artifact posteriorly (comet-tail artifact). If the second A-M interface appears, which we call a "double-tract sign," esophageal intubation is considered.
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/28100406/modeling-of-path-planning-and-needle-steering-with-path-tracking-in-anatomical-soft-tissues-for-minimally-invasive-surgery
#7
Pan Li, Shan Jiang, Dong Liang, Zhiyong Yang, Yan Yu, Wei Wang
Steerable needles can potentially improve the effectiveness of diagnostic and therapeutic procedures, such as biopsy and cancer treatment, by increasing the targeting accuracy and reaching previously inaccessible targets. A discrete potential field algorithm based on three dimensional (3D) anatomical structures is proposed in this paper to plan the needle path in minimally invasive surgery. A 3D kinematic model of needle steering is formulated using Lie group theory. Model parameters are fitted using experimental data acquired via a 2-degree of freedom robotic device and an ultrasound imaging device...
January 16, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28099332/lung-ultrasound-for-the-diagnosis-of-pneumonia-in-adults-a-meta-analysis
#8
Ling Long, Hao-Tian Zhao, Zhi-Yang Zhang, Guang-Ying Wang, He-Ling Zhao
BACKGROUND: Pneumonia is a common and serious infectious disease that can cause high mortality. The role of lung ultrasound (LUS) in the diagnosis of pneumonia is becoming more and more important. METHODS: In the present study, we collected existing evidence regarding the use of LUS to diagnose pneumonia in adults and conducted a systematic review to summarize the technique's diagnostic accuracy. We specifically searched the Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, and Embase databases and retrieved outcome data to evaluate the efficacy of LUS for the diagnosis of pneumonia compared with chest radiography or chest computed tomography...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28099302/comparison-of-ultrasound-and-mri-for-the-diagnosis-of-glenohumeral-dysplasia-in-brachial-plexus-birth-palsy
#9
Kenneth W Donohue, Kevin J Little, John P Gaughan, Scott H Kozin, Brian D Norton, Dan A Zlotolow
BACKGROUND: In this study, we investigated the agreement between measurements made on ultrasound and those made on magnetic resonance imaging (MRI) in the assessment of glenohumeral dysplasia resulting from brachial plexus birth palsy. METHODS: Thirty-nine patients (14 male and 25 female) with brachial plexus birth palsy were evaluated at 2 tertiary care centers. All patients underwent ultrasonography and MRI for suspected glenohumeral dysplasia. Studies were obtained at an average of 2 months apart (range, 0 to 6 months)...
January 18, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28099260/differentiation-of-pancreatic-masses-via-endoscopic-ultrasound-strain-ratio-elastography-using-adjacent-pancreatic-tissue-as-the-reference
#10
Nadan Rustemović, Mirjana Kalauz, Katja Grubelić Ravić, Hrvoje Iveković, Branko Bilić, Zvonimir Ostojić, Dalibor Opačić, Iva Ledinsky, Matea Majerović, Ana Višnjić
OBJECTIVES: The aims of this study were to evaluate diagnostic value of endoscopic ultrasound strain ratio elastography in patients with focal pancreatic masses and to determine the cutoff value between the pancreatic malignancies and inflammatory pancreatic masses using reference areas different than those used by other investigators. METHODS: In a prospective single-center study, strain ratio was measured in patients with pancreatic masses. After the diagnosis was established, statistical analysis was used to compare the group with pancreatic malignancies to the one with inflammatory masses...
January 18, 2017: Pancreas
https://www.readbyqxmd.com/read/28098400/role-of-contrast-enhanced-sonography-in-the-evaluation-of-axillary-lymph-nodes-in-breast-carcinoma-a-monocentric-study
#11
Giacomo Agliata, Gianluca Valeri, Giulio Argalia, Elisa Tarabelli, Gian Marco Giuseppetti
OBJECTIVES: To evaluate the diagnostic performance of contrast-enhanced sonography for characterization of the lymph node status (metastatic or not) in patients with breast carcinomas by comparison with sentinel lymph node biopsy. METHODS: From January to August 2015, 50 female patients with a histologic diagnosis of invasive breast carcinoma were prospectively examined by ipsilateral axillary contrast-enhanced sonography. The test was performed by a single radiologist using an ultrasound system with a broadband 8-12-MHz, 38-mm high-resolution linear transducer...
January 18, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28096828/intramural-esophageal-tumors
#12
Mariusz P Łochowski, Katarzyna Kozak, Marek Rębowski, Józef Kozak
INTRODUCTION: Intramural esophageal tumors (IET) are located between unchanged mucous membrane and muscularis mucosae. They can be both benign and malignant. AIM: To evaluate diagnostic and therapeutic difficulties of IET. MATERIAL AND METHODS: During the years 2010-2015, 11 patients with IET were treated in our clinic. Diagnostics included gastroscopy, computed tomography of the chest, endoscopic ultrasound (EUS) guided fine needle biopsy, and positron emission tomography (PET) of the esophagus in cases with no histopathological confirmation...
December 2016: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28096645/peri-and-post-menopausal-women-with-complex-adnexal-masses-ascites-and-raised-ca-125-is-it-ovarian-cancer-or-tuberculosis
#13
Rashmi Bagga, Tanuja Muthyala, Subhas Chandra Saha, Shalini Gainder, Pradip Kumar Saha, Radhika Srinivasan, Arvind Rajwanshi, Nalini Gupta
Pelvic and peritoneal tuberculosis may resemble advanced ovarian cancer due to the presence of ascites, complex adnexal masses, peritoneal deposits and raised CA-125 level, especially in peri- and postmenopausal women. Other common features among women with these two conditions are abdominal pain and distension, weight loss and reduced appetite. As the treatment of pelvic-peritoneal tuberculosis is completely different from that of ovarian cancer, it is important to reach a correct diagnosis. Sometimes women with pelvic-peritoneal tuberculosis may be subjected to a laparotomy for suspected ovarian cancer which is likely to increase their morbidity...
October 2016: Journal of Mid-life Health
https://www.readbyqxmd.com/read/28095957/point-of-care-ultrasound-utility-and-potential-for-high-altitude-crew-recovery-missions
#14
Laura A Galdamez, Jonathan B Clark, Erik L Antonsen
INTRODUCTION: Flights to high altitude can lead to exposure and unique pathology not seen in normal commercial aviation. METHODS: This paper assesses the potential for point-of-care ultrasound to aid in management and disposition of injured crewmembers from a high altitude incident. This was accomplished through a systematic literature review regarding current diagnostic and therapeutic uses of ultrasound for injuries expected in high altitude free fall and parachuting...
February 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28095914/vascular-mapping-of-the-retroauricular-skin-proposal-for-a-posterior-superior-surgical-incision-for-transcutaneous-bone-conduction-hearing-implants
#15
Adam Perenyi, Zsofia Bere, Janos Jarabin, Balazs Sztano, Edit Kukla, Ziad Bikhazi, Laszlo Tiszlavicz, Ferenc Toth, Jozsef Geza Kiss, Laszlo Rovo
BACKGROUND: Passive transcutaneous osseointegrated hearing implant systems have become increasingly popular more recently. The area over the implant is vulnerable due to vibration and pressure from the externally worn sound processor. Good perfusion and neural integrity has the potential to reduce complications. The authors' objective was to determine the ideal surgical exposure to maintain perfusion and neural integrity and decrease surgical time as a result of reduced bleeding. METHODS: The vascular anatomy of the temporal-parietal soft tissue was examined in a total of 50 subjects...
January 17, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28095866/improvement-of-displacement-estimation-of-breast-tissue-in-ultrasound-elastography-using-the-monogenic-signal
#16
Taher Slimi, Ines Marzouk Moussa, Tarek Kraiem, Halima Mahjoubi
BACKGROUND: In breast ultrasound elastography, tissues displacements estimation is obtained through a technique that follows the evolution of tissues under stress. However, during the acquisition of B-mode images, tissue displacements are often contaminated with multiplicative noise caused by changes in the speckle pattern in the tissue. Thus, the application of monogenic signal technique on the B-mode image in order to estimate displacement tissue, result in a presence of amplified noise in the deformation tissue image, which severely obscures the useful information...
January 17, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28094757/which-joints-and-why-do-rheumatologists-scan-in-rheumatoid-arthritis-by-ultrasonography-a-real-life-experience
#17
Sibel Zehra Aydin, Salih Pay, Nevsun Inanc, Sevil Kamali, Omer Karadag, Paul Emery, Maria-Antonietta D'Agostino
OBJECTIVES: Ultrasonography (US) has been demonstrated to improve assessment of synovitis and disease activity in rheumatoid arthritis (RA). However, the utility and feasibility of US in RA in clinical practice in real life is not known. We aimed to investigate: i) the indications for performing US in RA in daily practice; and ii) whether the number of scanned joints varies according to the purpose. METHODS: Consecutive patients who had a US scan either for diagnosis or follow-up for RA from 5 centres were recruited...
January 15, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28094199/risk-of-prostate-cancer-diagnosis-and-mortality-in-men-with-a-benign-initial-transrectal-ultrasound-guided-biopsy-set-a-population-based-study
#18
Nina Klemann, M Andreas Røder, J Thomas Helgstrand, Klaus Brasso, Birgitte G Toft, Ben Vainer, Peter Iversen
BACKGROUND: The risk of missing prostate cancer in the transrectal ultrasound-guided systematic biopsies of the prostate in men with suspected prostate cancer is a key problem in urological oncology. Repeat biopsy or MRI-guided biopsies have been suggested to increase sensitivity for diagnosis of prostate cancer, but the risk of disease-specific mortality in men who present with raised prostate-specific antigen (PSA) concentration and a benign initial biopsy result remains unknown. We investigated the risk of overall and prostate cancer-specific mortality in men with a benign initial biopsy set...
January 13, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28094066/implementation-of-elastography-score-and-strain-ratio-in-combination-with-b-mode-ultrasound-avoids-unnecessary-biopsies-of-breast-lesions
#19
Kristina Bojanic, Natasa Katavic, Martina Smolic, Marija Peric, Kristina Kralik, Miroslav Sikora, Kristina Vidačić, Mirta Pacovski, Damir Stimac, Gordana Ivanac
The aim of this study was to evaluate whether the combination of B-mode ultrasound, elastography score (ES) and strain ratio (SR) improves diagnostic performance with respect to breast lesions. One hundred thirty lesions were prospectively evaluated by B-mode ultrasound and strain elastography, followed by fine-needle aspiration cytology/biopsy in 117 woman who were scheduled for regular breast BUS. The median ES (4.5 vs. 2.9, p < 0.001) and SR (4.9 vs. 2.3, p < 0.001) were significantly higher for malignant than for benign lesions...
January 13, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28093873/diagnostic-and-management-challenges-from-childhood-puberty-through-to-transition-in-severe-insulin-resistance-due-to-insulin-receptor-mutations
#20
Christina Wei, Christine P Burren
Two Caucasian girls, both of normal weight and body mass indices, were diagnosed with type A insulin resistance (IR) in childhood. Case 1 presented with premature adrenarche aged 7 years, then by age 12 years had hirsutism, acne, acanthosis nigricans, and asymptomatic diabetes. Subsequent investigation revealed raised adiponectin (15.3 mg/L) and heterozygous p.Pro1205Leu mutation in the INSR gene encoding the insulin receptor. She experienced postprandial hypoglycaemia on metformin; acarbose was trialled and discontinued aged 16 years, as she became normoglycaemic...
January 17, 2017: Pediatric Diabetes
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