Catalogue Search | MBRL
Are you sure you want to remove the book from the shelf?
{{itemTitle}}
310,622
result(s) for
"Ultrasonic imaging"
Sort by:
Fundamentals of Medical Ultrasonics
This book sets out the physical and engineering principles of acoustics and ultrasound as used for medical applications. It covers the basics of linear acoustics, wave propagation, non-linear acoustics, acoustic properties of tissue, transducer components, and ultrasonic imaging modes, as well as the most common diagnostic and therapeutic applications. It offers students and professionals in medical physics and engineering a detailed overview of the technical aspects of medical ultrasonic imaging, whilst serving as a reference for clinical and research staff.
eBook
Diagnostic ultrasound imaging : inside out
Diagnostic Ultrasound Imaging provides a comprehensive introduction to and a state-of-the-art review of the essential science and signal processing principles of diagnostic ultrasound. The progressive organization of the material serves beginners in medical ultrasound science and graduate students as well as design engineers, medical physicists, researchers, clinical collaborators, and the curious. This it the most comprehensive and extensive work available on the core science and workings of advanced digital imaging systems, exploring the subject in a unified, consistent and interrelated manner. From its antecedents to the modern day use and prospects for the future, this it the most up-to-date text on the subject. Diagnostic Ultrasound Imaging provides in-depth overviews on the following major aspects of diagnostic ultrasound: absorption in tissues; acoustical and electrical measurements; beamforming, focusing, and imaging; bioeffects and ultrasound safety; digital imaging systems and terminology; Doppler and Doppler imaging; nonlinear propagation, beams and harmonic imaging; scattering and propagation through realistic tissues; and tissue characterization.
eBook
The Public Life of the Fetal Sonogram
In The Public Life of the Fetal Sonogram, medical anthropologist Janelle S. Taylor analyzes the full sociocultural context of ultrasound technology and imagery. Drawing upon ethnographic research both within and beyond the medical setting, Taylor shows how ultrasound has entered into public consumer culture in the United States. The book documents and critically analyzes societal uses for ultrasound such as nondiagnostic \"keepsake\" ultrasound businesses that foster a new consumer market for these blurry, monochromatic images of eagerly awaited babies, and anti-abortion clinics that use ultrasound in an attempt to make women bond with the fetuses they carry, inciting a pro-life state of mind.
This book offers much-needed critical awareness of the less easily recognized ways in which ultrasound technology is profoundly social and political in the United States today.
eBook
Workbook for Diagnostic Medical Sonography: A Guide to Clinical Practice, Obstetrics and Gynecology
Designed to accompany the 5th Edition of Susan Raatz Stephenson and Julia Dmitrieva's text, Workbook for Diagnostic Medical Sonography: A Guide to Clinical Practice, Obstetrics and Gynecology, 5th Edition, by Barbara Hall-Terracciano and Susan R. Stephenson, offers a full complement of self-study aids for active learning that enable you to assess and build your knowledge as you advance through the text. Most importantly, it helps you get the most out of your study time, with a variety of custom-designed exercises to help you master each objective.
eBook
P276 Thermal bipolar radiofrequency for refractory severe coxalgia: a case report
Application for ESRA Abstract Prizes:Background and AimsCoxalgia is a common condition in patients over 45, prevalence increasing with age. Its etiology is diverse, including degenerative, inflammatory, infectious, or neoplastic causes. Radiofrequency (RF) targets the sensory innervation of the anterior hip capsule, particularly the articular branches of the obturator, accessory obturator, and femoral nerves. We present a case of severe coxalgia successfully managed with bipolar thermal RF after failure of conservative treatments.MethodsA 68-year-old woman presented with progressive right-sided mechanical groin pain (VAS 8) of several years’ duration. Radiographic evaluation confirmed severe coxarthrosis. The patient had completed rehabilitation and first-line analgesic therapy. Despite orthopedic consultation, she declined surgical intervention and was referred to the Pain Unit for palliative management. A diagnostic block of the femoral, accessory obturator, and obturator nerves was performed under fluoroscopic and ultrasound guidance using 0.5% bupivacaine, resulting in complete pain relief for 36 hours. Bipolar thermal radiofrequency ablation was then scheduled. Under ultrasound guidance, the femoral neurovascular bundle was identified. Then RF needles (22G) were placed at the target sites under fluoroscopy. Thermal RF was applied for 2 minutes at 80°C after test stimulation.ResultsThe patient reported complete pain relief lasting 6 months. Upon symptom recurrence (VAS 6), the procedure was repeated one month later, achieving sustained improvement lasting at least one year.ConclusionsBipolar thermal radiofrequency is a safe and promising technique for the management of chronic coxalgia. Further studies are needed to compare its long-term efficacy versus monopolar RF approaches.
Journal Article
EP081 A cadaveric study investigating the mechanism of action of the external oblique intercostal block
Background and AimsThe external oblique intercostal (EOI) blocks have been reported to provide analgesia to both the anterior and lateral upper abdominal wall. However, the spread of injectate and the mechanisms of action remain to be fully elucidated. This cadaveric study aimed to evaluate the injectate spread following ultrasound-guided EOI block in human cadaver models.MethodsUltrasound-guided EOI block injections were performed bilaterally (n=7) on four soft embalmed Thiel cadavers. Thirty milliliters of saline-soluble dye were injected between the external oblique and external intercostal muscles at the sixth intercostal space. Anatomical dissection was subsequently conducted to assess the extent and depth of injectate spread.ResultsIn all specimens, dye spread did not extend beyond the costal arch, and the anterior branches of the thoracoabdominal nerves were not stained. The dye infiltrated within the external oblique muscle, reaching its superficial layer across a median (IQR) of 3 (3–4) intercostal levels, but did not reach the site where the lateral cutaneous branches arise from the intercostal nerves along the mid-axillary line. Limited dye spread into the intercostal space was observed in 3 of 7 specimens.ConclusionsIn our cadaveric study, EOI block did not involve the anterior branches of the thoracoabdominal nerves. Our findings suggest that the EOI block may affect the lateral cutaneous branches of the intercostal nerves through the spread of injectate within the external oblique muscle. Future research is warranted to clarify the precise mechanisms of action and anesthetic coverage of the EOI block.Abstract EP081 Figure 1Ultrasound-guided right EOI block[Image Omitted. See PDF.]Abstract EP081 Figure 2Cadaveric finding showing the spread of blue dye following right EOI block injection. EO, External oblique muscle[Image Omitted. See PDF.]
Journal Article
P139 Ultrasound-guided interscalene block for reduction of shoulder dislocation
Please confirm that an ethics committee approval has been applied for or granted: Yes: I’m uploading the Ethics Committee Approval as a PDF file with this abstract submissionBackground and AimsLimb dislocations are common pathologies requiring emergency treatment. In the United States, 24 shoulder dislocations are reported per year per 100,000 people, or nearly 80,000 dislocations. It most often occurs after a violent trauma. Young adults are most often affected; it is common in epileptics. Reduction of the dislocation is a trauma emergency All types of anesthesia can be used for shoulder dislocation reduction. The objective of this study was to evaluate the efficacy and safety of the interscalene block for shoulder dislocation reduction.MethodsProspective descriptive study conducted in Batna University Hospital during the 2023/2024. Inclusion criteria were adult patients admitted for shoulder dislocation. The interscalene block was performed under ultrasound guidance. Demographic data, block data (performance time, onset time, LA), success, and complications were recorded.ResultsTwenty patients were included during the study period. The mean age of our patients was 40 years (range, 19–83). Sex: 18 men/2 women. All patients fasted for more than 6 hours. All blocks were performed using the lateral in plane approach, except for one patient. For the first 6 cases, we used a mixture of lidocaine and bupivacaine, with a volume between 5 and 10 ml For the following 14 patients, we used 2% lidocaine alone with a volume between 5 and 17 ml. For the injection site: We injected 8 times around C5, 10 times between C5 and C6, and 2 times (7 ml) above C5. The block took 1–5 minutes to perform and the block onset time was 1–2 minutes. Only one complication was reported: paresthesias during a two-injection block. Success was 100% with a single attempt in 18 cases.ConclusionsThe interscalene block is an effective and safe technique for reducing shoulder dislocation; ultrasound guidance allows for reduced doses and a reduced risk of complications
Journal Article
EP163 The spread of injectate observed on MRI after an erector spinae plane injection at L4
Background and AimsBackground The Erector Spinae Plane (ESP) block is as a simple, ultrasound guided technique, widely used to provide thoracic analgesia. In the lumbar region, a similar technique has been described, but with less success. This may be due to anatomical differences between the fascial planes in the lumbar and thoracic regions, causing a different pattern of injectate spread. This study was performed to determine which structures are reached when fluid is injected into the lumbar ESP, to indicate the clinical applications of a lumbar ESP block.MethodsTwelve patients were included in the study, performed between January to June 2023. All were being treated for chronic hip pain. Following a therapeutic hip block, a baseline MRI was performed. Saline (30 ml) was then injected on the contralateral side, into the ESP at the level of L4, using. an ultrasound guided, parasagittal, in-plane technique. A second MRI was performed after thirty minutes, and the spread of injectate analysed.ResultsPosterior spread within the erector spinae (ES) muscles, the location of dorsal rami of spinal nerves was seen in all patients. In n=4 (33%) patients, saline also spread anteriorly, to anatomical areas where ventral rami of spinal nerves or the lumbar plexus are located, and to the paravertebral space. Epidural spread was also seen in one of these four. Average craniocaudal spread of injectate was 140.3 mm (90–194 mm). Average number of vertebral levels covered was 5.75 (4–8), i.e. approximately 5.2 ml of injectate per vertebral level.ConclusionsThe spread of a bolus of fluid injected into the lumbar ESP tends to be posteriorly, implying usefulness for spinal surgery. Unpredictable anterior spread suggests that this may not be such a reliable type of block for surgeries requiring anaesthesia to ventral rami of spinal nerves or related anterior structures.
Journal Article