Objective: Currently, there is a lack of objective means to quantify myofascial trigger points (MTrPs) and their core features. Our research compares (1) MTrPs and surrounding myofascial tissue using twodimensional grayscale ultrasound (2DGSUS) and vibration sonoelastography (VSE); (2) the accuracy of both modes in visualizing MTrPs; (3) 'active' and 'latent' MTrPs, using VSE; and (4) the accuracy of both modes in visualizing deep and superficially located MTrPs. Methods: Fifty participants with more than two MTrPs in their quadratus lumborum, longissimus thoracis, piriformis, and gluteus medius muscles were assigned to an active MTrP (low back pain) group or a latent (currently pain free) MTrP group. MTrP identification was based on their essential criteria. An electronic algometer measured repeatedly the tenderness of MTrPs with reference to pressure pain threshold values. A handheld vibrator was applied over MTrPs, while VSE and 2DGSUS readings were taken using an EUB-7500 ultrasound scanner. Results: There was a significant difference between MTrP strain and that of the immediately surrounding myofascial tissue, as measured using VSE (P50.001). VSE visualized all superficial and deep MTrPs with an accuracy of 100% (for both groups); the blinded results obtained using 2DGSUS achieved 33% and 35% accuracy, respectively. There was no significant difference found between the tissue strain ratios of active and latent MTrPs (P50.929). Discussion: Sonoelastography can visualize superficial and deep MTrPs, and differentiate them from surrounding myofascial structure through tissue stiffness and echogenicity. VSE was more accurate than 2DGSUS in visualizing and imaging MTrPs.
Study DesignThis is a prospective, randomized, controlled study designed and conducted over 10 years from 2002 to 2012.PurposeThe study aimed to monitor the effect of suction drains (SD) on the incidence of epidural fibrosis (EF) and to test, if the use of SD alone, SD with local steroids application, SD combined with fat grafts and local steroids application, or SD combined with fat grafts and without local steroids application, would improve outcome.Overview of LiteratureEF contributes to significant unsatisfactory failed-back syndrome. Efforts have been tried to reduce postoperative EF, but none were ideal.MethodsBetween September 2002 and 2012, 290 patients with symptomatic unilateral or bilateral, single-level lumbar disc herniation were included in the study. Two groups were included, with 165 patients in group I (intervention group) and 125 patients in group II (control group). Group I was subdivided into four subgroups: group Ia (SD alone), group Ib (SD+fat graft), group Ic (SD+local steroids), and group Id (SD+fat graft+local steroids).ResultsThe use of SD alone or combined with only fat grafts, fats grafts and local steroids application, or only local steroids application significantly improved patient outcome and significantly reduced EF as measured by magnetic resonance imaging (MRI).ConclusionsThis study has clearly demonstrated the fact that the use of suction drainage alone or combined with only fat grafts, fats grafts and local steroids application, or only local steroids application significantly improved patient outcome with respect to pain relief and functional outcome and significantly reduced EF as measured by an MRI. A simple grading system of EF on MRI was described.
With the expanded role of screening breast ultrasonography and accumulating clinical experience, the American College of Radiology (ACR) has established the Breast Imaging Reporting and Data System (BI-RADS) ultrasonography lexicon to standardize terminology for description and management recommendations according to stratified risks. It has been established that probably benign (BI-RADS category 3) lesions having a malignancy rate of less than 2% require short-term imaging follow-up rather than immediate biopsy. The BI-RADS 4 category is assigned to suspicious lesions for which biopsy is recommended. Routine screening methods such as mammography and breast ultrasound are valuable methods for managing breast masses. Breast ultrasound is the preferable screening method as it provides high sensitivity for detecting breast cancer in women with dense breast tissue and can detect cancers not identified on mammography in asymptomatic women with dense breast tissue.In our study we included 46 patients with different breast lesions. All patients had a conventional B-mode ultrasound examination and were evaluated according to the BIRADS categories, then real time free-hand ultrasound elastography was performed in the same session and images were evaluated using both the Tsukuba elasticity score and the strain ratio method. Finally, the results were compared to the histopathologic results of those lesions. It was found that conventional B-mode ultrasound examination had a sensitivity of 72.73% and specificity of 83% While, elastography scoring alone turned out to have sensitivity of 65.5%, specificity of 83.4% using the Tsukuba score system. The additional of Strain ratio parameter for evaluating the elastography images showed the highest sensitivity 98.4% and specificity 85.68% at a best cutoff point of 3.47. So we have found that elastography is an easy procedure with high diagnostic performance which can be easily integrated with the B-mode ultrasound examination in the same session and improves its specificity. That has proven benefit in minimizing the number of unnecessary biopsies especially in the assessment of BIRADS 3 and 4 lesions
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