Journal of Medical Ultrasound最新文献

{"title":"High-quality Agar and Polyacrylamide Tumor-mimicking Phantom Models for Magnetic Resonance-guided Focused Ultrasound Applications","authors":"Panagiotis Sofokleous, Christakis Damianou","doi":"10.4103/jmu.jmu_68_23","DOIUrl":"https://doi.org/10.4103/jmu.jmu_68_23","url":null,"abstract":"Abstract Background: Tissue-mimicking phantoms (TMPs) have been used extensively in clinical and nonclinical settings to simulate the thermal effects of focus ultrasound (FUS) technology in real tissue or organs. With recent technological developments in the FUS technology and its monitoring/guided techniques such as ultrasound-guided FUS and magnetic resonance-guided FUS (MRgFUS) the need for TMPs are more important than ever to ensure the safety of the patients before being treated with FUS for a variety of diseases (e.g., cancer or neurological). The purpose of this study was to prepare a tumor-mimicking phantom (TUMP) model that can simulate competently a tumor that is surrounded by healthy tissue. Methods: The TUMP models were prepared using polyacrylamide (PAA) and agar solutions enriched with MR contrast agents (silicon dioxide and glycerol), and the thermosensitive component bovine serum albumin (BSA) that can alter its physical properties once thermal change is detected, therefore offering real-time visualization of the applied FUS ablation in the TUMPs models. To establish if these TUMPs are good candidates to be used in thermoablation, their thermal properties were characterized with a custom-made FUS system in the laboratory and a magnetic resonance imaging (MRI) setup with MR-thermometry. The BSA protein's coagulation temperature was adjusted at 55°C by setting the pH of the PAA solution to 4.5, therefore simulating the necrosis temperature of the tissue. Results: The experiments carried out showed that the TUMP models prepared by PAA can change color from transparent to cream-white due to the BSA protein coagulation caused by the thermal stress applied. The TUMP models offered a good MRI contrast between the TMPs and the TUMPs including real-time visualization of the ablation area due to the BSA protein coagulation. Furthermore, the T2 -weighted MR images obtained showed a significant change in T2 when the BSA protein is thermally coagulated. MR thermometry maps demonstrated that the suggested TUMP models may successfully imitate a tumor that is present in soft tissue. Conclusion: The TUMP models developed in this study have numerous uses in the testing and calibration of FUS equipment including the simulation and validation of thermal therapy treatment plans with FUS or MRgFUS in oncology applications.","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136312317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plantar Fasciitis: An Updated Review","authors":"Wen‐Che Tseng, Yun-Chang Chen, Tsung-Min Lee, Wen-Shiang Chen","doi":"10.4103/jmu.jmu_2_23","DOIUrl":"https://doi.org/10.4103/jmu.jmu_2_23","url":null,"abstract":"Plantar fasciitis (PF) is a common musculoskeletal disease. Histologic findings of patients with PF showed mainly chronic degenerative processes rather than inflammation. In addition to mechanical factors, such as repetitive stress and reduced ankle dorsiflexion, PF is also linked to rheumatologic diseases and genetic factors. Ultrasound is becoming a standard imaging technique for assessing PF. Major sonographic findings included increased plantar fascia thickness and hypoechoic plantar fascia. In addition to traditional B-mode ultrasound, sonoelastography can also be utilized to diagnose PF. Ultrasound can also be used to guide therapeutic interventions. Over 80% of patients with PF improved under nonsurgical treatment. Treatment options for PF include physical therapy, modalities (laser, therapeutic ultrasound), extracorporeal shock wave therapy (ESWT), injections, transcatheter arterial embolization, and surgery. For injections, corticosteroid was mostly used in the past but has been replaced gradually by other techniques such as platelet-rich plasma or dextrose prolotherapy. There is also more and more evidence about ESWT in treating PF. Surgery serves as an option for recalcitrant PF cases, and endoscopic fasciotomy seemed to have good outcomes. Ultrasound plays an important role in diagnosing of PF and evaluating the treatment effect, and the use of sonoelastography in addition to traditional B-mode ultrasound may help in the early detection of PF and assessment of the treatment effect.","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139322279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Flow-mediated Dilation of the Brachial Artery in Women with Hypertensive Disorders of Pregnancy.","authors":"Babatunde Opeyemi Oguntade, Bolanle Olubunmi Ibitoye, Olufemiwa Niyi Makinde, Bukunmi Michael Idowu, Tolulope Adebayo Okedere","doi":"10.4103/jmu.jmu_10_23","DOIUrl":"https://doi.org/10.4103/jmu.jmu_10_23","url":null,"abstract":"<p><strong>Background: </strong>Hypertensive disorder of pregnancy (HDP) comprise chronic hypertension, gestational hypertension, preeclampsia/eclampsia, and preeclampsia superimposed on chronic hypertension. HDP complicate up to 10% of pregnancies worldwide and carry significant risks of maternal and perinatal morbidity and mortality. The aim of this study was to evaluate the derangement and characteristics of brachial artery flow-mediated dilation (BAFMD) in women with HDP.</p><p><strong>Methods: </strong>The BAFMD of the right brachial artery of 80 women with HDP (pregnant HDP), 80 normotensive pregnant women (pregnant non-HDP), and 80 healthy nonpregnant women (nonpregnant controls) was evaluated with B-mode ultrasound. The age, blood pressure, body mass index (BMI), brachial artery diameter, and BAFMD of the participants were compared. <i>P</i> ≤ 0.05 was statistically significant.</p><p><strong>Results: </strong>The pregnant HDP group had significantly lower mean BAFMD compared to pregnant non-HDP and nonpregnant controls (6.9% ± 2.53% vs. 8.32% ± 3.4% vs. 9.4% ± 2.68%; <i>P</i> < 0.001). There was no significant difference between the mean BAFMD of the pregnant HDP subgroups: preeclampsia (5.81% ± 1.7%) versus gestational hypertension (6.43% ± 3.02%); <i>P</i> = 0.57. BAFMD diminished with advancing gestational age in both the pregnant HDP and pregnant non-HDP groups. On regression analysis, BAFMD was a poor marker for HDP, while BMI was an independent predictor for HDP.</p><p><strong>Conclusion: </strong>Even though HDP were associated with significantly diminished BAFMD, it was not a good marker for HDP.</p>","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11040488/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140872463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Megacystis-microcolon-intestinal Hypoperistalsis Syndrome: Four Consecutive Pregnancies with Megacystis.","authors":"Susana Saraiva, M Solinho, C Lourenço, C Brito","doi":"10.4103/jmu.jmu_111_22","DOIUrl":"10.4103/jmu.jmu_111_22","url":null,"abstract":"<p><p>Megacystis-microcolon-intestinal hypoperistalsis syndrome is a rare congenital disease with a poor prognosis and life expectancy. We present the prenatal diagnosis of four consecutive cases in the same woman. After medical genetics consultation, the couple was advised to resort to medically assisted reproduction techniques with oocyte donation. This case report demonstrates the recurrence of a rare disease in four consecutive pregnancies and how prenatal diagnosis assumed a preponderant role in parental counseling.</p>","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11414953/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142298162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the Correlation between 7-joint Ultrasound Score and Disease Activity in Patients with Rheumatoid Arthritis.","authors":"Xiaolong Yu, Qiang Wang, Lin Zhuang, Gaojun Cai, Zun Li, Min Ren, Zihan Jin, Jing Xi","doi":"10.4103/jmu.jmu_43_23","DOIUrl":"10.4103/jmu.jmu_43_23","url":null,"abstract":"<p><strong>Background: </strong>The objective of this study was to investigate the correlation between the 7-joint ultrasound score (US7) and disease activity in patients with rheumatoid arthritis (RA).</p><p><strong>Methods: </strong>Forty-four patients with active RA were assessed, and the correlation between US7 and disease activity indicators such as the disease activity score (DAS28), rheumatoid factor (RF), the erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP) was analyzed. In addition, the proportions of US7 points accounted for by different joint regions and joint surfaces were analyzed.</p><p><strong>Results: </strong>RF, CRP, and ESR were significantly increased in the RA group compared with the control group (<i>P</i> < 0.05). In the RA group, DAS28 (<i>r</i> = 0.0.561, <i>P</i> < 0.01), RF (<i>r</i> = 0.635, <i>P</i> < 0.01), ESR (<i>r</i> = 0.585, <i>P</i> < 0.01), and CRP (<i>r</i> = 0.492, <i>P</i> < 0.01) were positively correlated with US7. In terms of contributions to US7, the most susceptible joint surface is the dorsal surface, and the most susceptible joint area is the dorsal wrist.</p><p><strong>Conclusion: </strong>US7 is positively correlated with disease activity indicators of RA, which can objectively reflect disease activity in RA patients and provide a reference for clinical diagnosis and efficacy evaluation.</p>","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11175366/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141332181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CME Test.","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10668892/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138463456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Periosteal Manifestations of Osteomyelitis and Arthritis on Ultrasound: A Systematic Review.","authors":"Palapun Waitayangkoon, Pablo Weilg-Espejo, Eugene Y Kissin","doi":"10.4103/jmu.jmu_16_23","DOIUrl":"https://doi.org/10.4103/jmu.jmu_16_23","url":null,"abstract":"<p><p>Ultrasound (US) can visualize the periosteal changes in the early stage compared to radiography. In this review, we studied periosteal manifestations on US and assessed their diagnostic utility for osteomyelitis (OM) and arthritis. We included articles that studied ultrasonographic findings of periosteal changes in OM and arthropathies with aims to systematically review periosteal manifestations of each condition and summarize diagnostic values of each finding. A total of 13 articles were included in the systematic review. Of these, 10 articles are on OM, 3 articles are on psoriatic arthritis (PsA), 1 article is on rheumatoid arthritis (RA), and 1 article is on gouty arthritis (GA). In OM, subperiosteal fluid/subperiosteal collection (SF/SC) was detected in 32%-76% within 72 h after presentation. Periosteal reaction (PR) was seen after day 4 and the sensitivity on US ranges from 33% to 100%. In PsA, PR was seen near 16%-59% in active PsA joints. Periosteal changes are rarely detected in RA joints. Small hyperechoic spots were seen in 87.5% of GA. SF/SC may be seen on US as the earliest sign followed by PR for OM. PR is more specific in PsA than RA. Further investigations on periosteal abnormalities on US are warranted to confirm our findings.</p>","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11040492/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140872861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prenatal Sonographic Diagnosis of Rare Fetal Anomaly.","authors":"Vaishali Dhawan, Ashwini Rathod, Shilpa Raut Choudhary","doi":"10.4103/jmu.jmu_38_23","DOIUrl":"10.4103/jmu.jmu_38_23","url":null,"abstract":"","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11414947/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142298164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Study of the Feasibility of Ultrasound-guided Catheterization of the Right Brachiocephalic Vein in Adult Patients: A Prospective Observational Study.","authors":"Yudhyavir Singh, Magesh Pratibhan, Abhishek Singh, Vini Depal, Chhavi Sawhney, Babita Gupta","doi":"10.4103/jmu.jmu_57_23","DOIUrl":"10.4103/jmu.jmu_57_23","url":null,"abstract":"<p><strong>Background: </strong>The brachiocephalic vein (BCV) is a feasible option for central venous access in the pediatric population and is rapidly developing as an alternative site for insertion of the central line in young children with faster insertion times, fewer attempts, and lower rates of complications. However, studies demonstrating the feasibility of BCV catheterization in adult patients are insufficient. The current study sought to assess the safety and effectiveness of ultrasound-guided supraclavicular right BCV cannulations in adults.</p><p><strong>Methods: </strong>A linear array Ultrasound (US) probe was used to obtain a longitudinal picture of the BCV beginning at the junction of the internal jugular vein and the subclavian vein in the supraclavicular region. Under US supervision, the needle was guided into the BCV using the in-plane approach. A prospective study was performed on 80 adult patients scheduled for elective and emergency operative procedures under general anesthesia requiring a central venous catheter (CVC). Success rates and complications that occurred during catheter insertion were analyzed.</p><p><strong>Results: </strong>CVC placement was successful in all adults. The procedure was successful at the first attempt in 74 cases (92.5%) and after 2 attempts in six patients (7.5%). The time to guide wire insertion was 31.26 s (19-58 s), and catheter insertion took 88.44 s (63-145 s). The mean length of catheter insertion was 10.46 cm. No complications were noted.</p><p><strong>Conclusion: </strong>Ultrasound-guided supraclavicular BCV catheterization offers a new and safe method for central venous line catheterization in adults. However, larger trials and meta-analyses are needed to confirm these findings and evaluate the safety of this technique.</p>","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11175376/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141332182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prenatal Sonographic Diagnosis of Rare Fetal Anomaly.","authors":"Vaishali Dhawan, Ashwini Rathod, Shilpa Sanjeev Choudhary","doi":"10.4103/jmu.jmu_37_23","DOIUrl":"https://doi.org/10.4103/jmu.jmu_37_23","url":null,"abstract":"","PeriodicalId":45466,"journal":{"name":"Journal of Medical Ultrasound","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11175375/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141332179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}