Ultrasound Research Today is a free monthly online journal that collates and summarizes the latest research about Ultrasound, including details on screening, diagnosis, pregnancy, detection. | ||||||
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Role of Ultrasound in Managing Rheumatoid Arthritis.Hammer HB, Terslev L Department of Rheumatology, Diakonhjemmet Hospital, Box 23 Vinderen, 0319, Oslo, Norway, hbham@online.no. Ultrasound (US) is a valid and reliable imaging tool for evaluation of joint and tendon inflammation as well as cartilage and erosions in patients with rheumatoid arthritis (RA). Synovitis is usually scored semiquantitatively for both gray scale synovitis and power Doppler activity, and use of an atlas for US scoring has shown excellent reliability. Several scores are shown to be responsive to medical treatment, but the optimal joint/tendon score is to be explored. Doppler activity may be quantified by use of pixel counts and flow may be examined by use of resistive index. US-guided injections are better tolerated and have increased efficacy, as compared with palpation guidance, and should thus be included in rheumatologic practice. Different methods such as three-dimensional US, contrast-enhanced US and fusion imaging methods are all possible US approaches that may be used in treatment of RA patients in the future. Published 5 July 2012 in Curr Rheumatol Rep. Articles on Ultrasound published 5 July 2012: Low-intensity pulsed ultrasound-mediated stimulation of hematopoietic stem/progenitor cell viability, proliferation and differentiation in vitro. Biotechnol Lett. Low-intensity pulsed ultrasound (LIPUS) stimulated the viability, proliferation and differentiation of hematopoietic stem/progenitor cells (HSPC) from fresh and cryopreserved peripheral blood leukapheresis product, as well as cord blood when applied for 10 min each day for 4 days. Cell viability, proliferation and differentiation were assessed on day 5 by viable cell counting, MTS proliferation assay, flow cytometry, and colony-forming unit assay. LIPUS stimulation: (i) enhanced the ... [Abstract] [Full-text] Mammotome biopsy under ultrasound conrol in the diagnostics and treatment of nodular breast lesions - own experience. Pol Przegl Chir, 84(5): 242-6. Mammotome biopsy is an effective, minimally invasive, novel technique used in the verification of breast lesions.The aim of the study was to assess the value of ultrasound-guided vacuum-assisted core needle biopsy (mammotome biopsy) in the diagnostics and treatment of nodular breast lesions, considering own data.Material and methods. Analysis comprised 1183 mammotome biopsies under ultrasound control performed in 1177 female patients during the period between 2000 and 2010, at the Regional ... [Abstract] [Full-text] Objectives: It is widely accepted that the diagnosis of foetal central nervous system (CNS) abnormalities can be improved by performing MRI examinations in utero. Most of the published literature has concentrated on pregnancies in which a developmental abnormality has been detected (or suspected) on ultrasound in an otherwise low-risk pregnancy. In this paper, we test the hypothesis that in utero MRI in the foetal brain in high-risk pregnancies will detect abnormalities not shown by ultrasound ... [Abstract] [Full-text] Noninvasive Transcranial Stimulation of Rat Abducens Nerve by Focused Ultrasound. Ultrasound Med Biol. Nonpharmacologic and nonsurgical transcranial modulation of the nerve function may provide new opportunities in evaluation and treatment of cranial nerve diseases. This study investigates the possibility of using low-intensity transcranial focused ultrasound (FUS) to selectively stimulate the rat abducens nerve located above the base of the skull. FUS (frequencies of 350 kHz and 650 kHz) operating in a pulsed mode was applied to the abducens nerve of Sprague-Dawley rats under stereotactic ... [Abstract] [Full-text] Quantitative Ultrasound of Skeletal Muscle: Reliable Measurements of Calibrated Muscle Backscatter from Different Ultrasound Systems. Ultrasound Med Biol. Widespread implementation of quantitative muscle ultrasonography in assessing skeletal muscle pathology is limited by an inability to replicate results between different ultrasound systems. We have developed a measurement of skeletal muscle pathology, calibrated muscle backscatter (cMB), which should be reproducible between different ultrasound systems. We compared the reliability of grayscale and cMB measurements between different ultrasound systems, configurations and region-of-interest (ROI) ... [Abstract] [Full-text] Evaluation of ultrasound transmission velocity and 3-dimensional radiology in different bone types for dental implantology: a comparative ex vivo study. Oral Surg Oral Med Oral Pathol Oral Radiol. OBJECTIVE: To evaluate ultrasound transmission velocity (UTV) for assessment of mechanical bone quality, an ex vivo comparison of different bone types measured with UTV, 2-dimensional (2D) histomorphometry and with 3-dimensional (3D) radiology (cone-beam computerized tomography [CBCT], computerized microtomography [μCT]) was conducted. STUDY DESIGN: Clinical cortical, cancellous, and mixed bone (each n = 6) was measured via UTV (m/s), CBCT (white pixel/black pixel ratio [WP/BP]), μCT (bone ... [Abstract] [Full-text] Establishing the accuracy and acceptability of abdominal ultrasound to define the foetal head position in the second stage of labour: a validation study. Eur J Obstet Gynecol Reprod Biol. OBJECTIVES: To compare the diagnosis of the foetal head position in the second stage of labour by ultrasound scan performed by a novice sonographer and by clinical assessment, to that of an expert sonographer (gold standard); and to evaluate the acceptability of ultrasound in the second stage of labour to women and clinicians. STUDY DESIGN: This is a case series. We recruited sixty women delivering in a university hospital in Dublin, Ireland. An abdominal scan was performed by a novice and an ... [Abstract] [Full-text] Ultrasound weight estimation of large fetuses. Acta Obstet Gynecol Scand. Objective. To compare the accuracy of fetal weight estimation in large fetuses using four ultrasound formulas. Design. Prospective comparative study. Setting. University Hospital, Lund, Sweden. Population. Large-for-gestational age fetuses (n = 114) at a routine ultrasound examination in the third trimester. Methods. Persson & Weldner two-dimensional formula was compared with Hart et al. two-dimensional formula incorporating maternal weight, and Lee et al. and Lindell & Maršál ... [Abstract] [Full-text] © 2009-2012 Ultrasound Research Today. All Rights Reserved. |
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