Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine
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The aim of this study was to investigate the feasibility, safety, and efficacy of uterine fibroid treatment using magnetic resonance imaging (MRI)-guided high-intensity focused ultrasound (US) with shot sonication for accurate ablation. Forty-three patients with 51 symptomatic uterine fibroids were treated with MRI-guided high-intensity focused US with shot sonication, which was a small acoustic focus of higher intensity with a shorter time (2 seconds) of US exposure and a shorter cooling time (2-3 seconds). The treatment efficacy and adverse events were analyzed, and the changes in the severity of symptoms and the reduction in fibroid volume were assessed 3 and 6 months after the procedure. ⋯ The overall mean treatment time was 135.0 ± 50.9 minutes (2.2 ± 0.8 hours). The transformed symptom severity scores and mean fibroid volumes decreased significantly after treatment (P < .05). In conclusion, MRI-guided high-intensity focused US with shot sonication is a feasible, safe, and effective technique for ablation of uterine fibroids and complete ablation of T2-hypointense fibroids.
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Review Case Reports
Transcranial Doppler Sonography in Pediatric Neurocritical Care: A Review of Clinical Applications and Case Illustrations in the Pediatric Intensive Care Unit.
Transcranial Doppler sonography is a noninvasive, real-time physiologic monitor that can detect altered cerebral hemodynamics during catastrophic brain injury. Recent data suggest that transcranial Doppler sonography may provide important information about cerebrovascular hemodynamics in children with traumatic brain injury, intracranial hypertension, vasospasm, stroke, cerebrovascular disorders, central nervous system infections, and brain death. Information derived from transcranial Doppler sonography in these disorders may elucidate underlying pathophysiologic characteristics, predict outcomes, monitor responses to treatment, and prompt a change in management. We review emerging applications for transcranial Doppler sonography in the pediatric intensive care unit with case illustrations from our own experience.
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To compare a mechanical heterogeneity index derived from ultrasound vibration elastography with physical findings before and after dry-needling treatment of spontaneously painful active myofascial trigger points in the upper trapezius muscle. ⋯ The mechanical heterogeneity index identifies changes in muscle tissue properties that correlate with changes in the myofascial trigger point status after dry needling.
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The aim of this study was to clarify differences in the anatomic structure of the sacral hiatus and angle of needle insertion during caudal epidural steroid injection using ultrasound guidance in patients according to sex and age. ⋯ We found that the sacral hiatus has anatomic differences between patients of different sexes and ages. Understanding these differences, especially in women, may improve the safety and reliability of caudal epidural steroid injection.
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Comparative Study
Comparison of Ultrasound-Guided Core Needle Biopsy and Endoscopic Ultrasound-Guided Fine-Needle Aspiration for Solid Pancreatic Lesions.
The objective of our study was to compare the diagnostic yield of endoscopic ultrasound (EUS)-guided fine-needle aspiration (FNA) using a 25-gauge needle and ultrasound (US)-guided core needle biopsy (CNB) using an 18-gauge core needle for diagnosis of solid pancreatic lesions. ⋯ The diagnostic yield of US-guided CNB for solid pancreatic lesions is superior to that of EUS-guided FNA.