Clinical Imaging and Interventional Radiology最新文献

Right ventricle Outflow Tract Acceleration Time: Correlation with Left Ventricular Diastolic Function 右心室流出道加速时间:与左心室舒张功能的相关性

Clinical Imaging and Interventional Radiology Pub Date : 2020-01-05 DOI: 10.31579/2642-1674/008

Liz Andréa V Baroncini

{"title":"Right ventricle Outflow Tract Acceleration Time: Correlation with Left Ventricular Diastolic Function","authors":"Liz Andréa V Baroncini","doi":"10.31579/2642-1674/008","DOIUrl":"https://doi.org/10.31579/2642-1674/008","url":null,"abstract":"Background: There are no available data about the measurement of acceleration time at the right ventricle outflow tract (AcT) and its relevance in the analysis of the left ventricular diastolic function (LVDF). Objective: To correlate AcT with echocardiographic parameters of LVDF. Method: Eighty-seven patients (58.4±14.5 years; 52% women) submitted to transthoracic echocardiogram assessing spectral and tissue Doppler of the transmitral flow and mitral annulus, AcT, left atrial volume (LAV), and pulmonary artery systolic pressure (PASP). Patients with systolic dysfunction of the LV and grades II and III diastolic dysfunction (DD) were excluded. Main analyses were performed using the Spearman’s Correlation Coefficient (SCC) and Pearson’s Linear Correlation Coefficient (PLCC). Results: A negative correlation between AcT value and age (PLCC – 0.36; Student’s t-test; p <0.001) and a positive correlation between AcT and E/A ratio (SCC 0.38; p<0.001), between AcT and E/e’ ratio (SCC 0.26; p=0.01), between AcT and E wave of the mitral flow (PLCC 0.36; p= 0.001) were found. LAV and PASP did not correlate with AcT. In patients with a normal diastolic function, AcT was higher when compared with the AcT in patients with Grade I DD (0.150±0.029ms versus 0.127±0.023ms; p<0.001; Student’s t-test). The threshold suggested in this subgroup of patients was 0.135s. Conclusions: The present study correlated, unprecedentedly, AcT with echocardiographic parameters of the LV diastolic function. AcT values lower than 0.135s were associated with grade I diastolic dysfunction and higher than 0.135s values were associated with normal diastole.","PeriodicalId":196675,"journal":{"name":"Clinical Imaging and Interventional Radiology","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125271942","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}

引用次数: 0

Spontaneous Renal Artery Pseudoaneurysm Treated By Arterial Embolization 动脉栓塞治疗自发性肾动脉假性动脉瘤

Clinical Imaging and Interventional Radiology Pub Date : 2020-01-05 DOI: 10.31579/2642-1674/009

M. Habib, Majdy Ayyad, Mohammed Balosha

引用次数: 0

Portal Annular Pancreas with portal cavernoma formation wtih associated dorsal pancreatic agenesis-A rare case report 门脉环胰伴门脉海绵状瘤形成伴胰背侧发育不全-一罕见病例报告

Clinical Imaging and Interventional Radiology Pub Date : 2019-07-17 DOI: 10.31579/2642-1674/007

L. Rana

引用次数: 0

The Developments of Innovative Technologies of Focal Radiotherapy a Viable, Safe, and Effective Option of Treatment 局灶放疗创新技术的发展是一种可行、安全、有效的治疗选择

Clinical Imaging and Interventional Radiology Pub Date : 2018-10-29 DOI: 10.31579/jcitr.2018/005

Hajira Mojdeh, Imamatullah Hamidi

{"title":"The Developments of Innovative Technologies of Focal Radiotherapy a Viable, Safe, and Effective Option of Treatment","authors":"Hajira Mojdeh, Imamatullah Hamidi","doi":"10.31579/jcitr.2018/005","DOIUrl":"https://doi.org/10.31579/jcitr.2018/005","url":null,"abstract":"Objectives: To determine if the postoperative delivery of fractionated stereotactic radiotherapy (FSRT) for resection cavity for patients with single and resectable brain metastases is safe and effective. Methods: A prospective feasibility protocol was set up to include patients with single and resectable brain metastases who underwent surgery and had low risk profile according to RPA classification. Fractionated stereotactic radiotherapy was applied. Single dose: 3.8 Gy, total dose: 41.8 or 49.6 Gy. Results: There was no case of break due to clinical problems. There was no case of delay of FSRT. The onset acute toxicity was observed in 40 cases (76.9%), no grade 3 and more was seen. Local recurrence free survival was 32.6 months, local control rate at 6, 12, 18 and 24 months were 85%, 77.9%, 65.9% and 65.9%. Overall local failure occurred in 34.1% of patients. Overall survival rates at 6, 12, 18 and 24 months were 90.3%, 63.9%, 47.7% and 31.6%. Median survival was 18.3 months (13.8-22.8) and overall 17.3% were living at the time of last analysis. Distant control rates at 6, 12, 18 and 24 months were 49.4%, 38.2%, 25.5% and 22.3%. Median distant recurrence free survival was 6 months (0-12.0) with overall distant failure in 77.7% of patients. Conclusion: FSRT for surgical cavity might be one possible option in treatment of single and resectable brain metastases.","PeriodicalId":196675,"journal":{"name":"Clinical Imaging and Interventional Radiology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114720825","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}

引用次数: 0

Electrophysiological procedures for the use of the RPC: without hindrance and negligible radiation 使用RPC的电生理程序:无阻碍和可忽略的辐射

Clinical Imaging and Interventional Radiology Pub Date : 2018-10-29 DOI: 10.31579/jcitr.2018/004

Matvei Ilya, V. Gleb

{"title":"Electrophysiological procedures for the use of the RPC: without hindrance and negligible radiation","authors":"Matvei Ilya, V. Gleb","doi":"10.31579/jcitr.2018/004","DOIUrl":"https://doi.org/10.31579/jcitr.2018/004","url":null,"abstract":"Background: Fluoroscopy is the main visualization technique for EP procedures. A radiation protection cabin (RPC) shielded with 2 mm lead-equivalent walls was tested as an alternative protection tool (Cathpax®, Lemer Pax). Methods: To assess the scattered radiation to the operator inside the RPC an electronic personal dosimeter (EPD; Mk2, Thermo Electron) was placed at the neck level of the operator. A second EPD was located outside the RPC at 150 cm height from the floor, to record the presumable head radiation dose. Results: Radiation doses were measured in a total of 138 consecutive patients (age 54±16 yrs, BMI 28±5 kg/m2 (18-45), 64% male) undergoing a variety of ablation procedures (SVT=75, AFL=32, AF=17, VT=14). Median fluoroscopy time was 39 min (7-140), the cumulative dose-area product (DAP) 4702 cGy.cm2 (493-65620). Doses outside the RPC showed a median of 135 µSv (1-4881). Doses inside the RPC were detected only at sensitivity threshold or background levels (mean 0.2SD0.7 µSv, median 0.0, range 0-4). The dose reduction to the operator was highest for AF ablations (354 vs 0.5 µSv, respectively; p<0.001). The total accumulated dose outside the RPC was 37883 µSv for all 138 procedures, whereas for the protected operator inside only 30 µSv. Conclusions: There were highly concordant low dose values measured for the operator inside the RPC in comparison to high doses outside the RPC. The use of a RPC represents a major benefit over a lead apron and contributes to a significant dose reduction as low as reasonably achievable (ALARA principle).","PeriodicalId":196675,"journal":{"name":"Clinical Imaging and Interventional Radiology","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127462563","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}

引用次数: 0

A Complex Component of the Nervous System: Brachial Plexus 神经系统的一个复杂组成部分:臂丛

Clinical Imaging and Interventional Radiology Pub Date : 2018-10-29 DOI: 10.31579/jcitr.2018/003

Nephthys Sanzhar, Erasyl M Davis, M.K. Siminoski

{"title":"A Complex Component of the Nervous System: Brachial Plexus","authors":"Nephthys Sanzhar, Erasyl M Davis, M.K. Siminoski","doi":"10.31579/jcitr.2018/003","DOIUrl":"https://doi.org/10.31579/jcitr.2018/003","url":null,"abstract":"Brachial plexopathy is a type of peripheral neuropathy. Injuries to the brachial plexus can be classified according to their severity, ranging from neuropraxia, the mildest form, to axonotmesis and neurotmesis, the most severe forms. The causes of brachial plexopathy include traumatic and non-traumatic injuries. Because the brachial plexus can sustain various types of injuries, different imaging modalities are required. Recent advances in diagnostic imaging have enabled better investigation of brachial plexopathy. This article reviews the major and most widely used imaging methods used for investigating brachial plexopathy along with newer modalities. The indications, advantages, and disadvantages of each modality are examined. The major factor in realizing the full potential of any imaging method is the knowledge of the requesting physician about the capabilities and limitations of each method. Magnetic resonance imaging (MRI) is the standard imaging modality for evaluating non-traumatic injury to the brachial plexus; however, there are several limitations to its use and, therefore, other modalities should be pursued. MR myelography should be used for traumatic meningoceles and root avulsions. MR neurography is a relatively new technique with massive potential. It is a tissue-specific modality with the ability to elicit morphological as well as pathological features of nerves. CT myelography is the gold standard for evaluating traumatic injury of the brachial plexus. Other potential uses are with tumors of the brachial plexus as well as obstetric brachial plexus palsies. Finally, sonography is addressed. With its ability to detect almost all plexopathies and the fact that it does not employ radiation and can be done in virtually every patient, it should be the baseline or, at least, the screening method for plexopathies.","PeriodicalId":196675,"journal":{"name":"Clinical Imaging and Interventional Radiology","volume":"2001 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128294900","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}

引用次数: 0

A New System for Outcome Measure of Atelectasis in Studies of Cardiac Surgery 心脏外科研究中肺不张结果测量的新系统

Clinical Imaging and Interventional Radiology Pub Date : 2018-10-29 DOI: 10.31579/JCITR.2018/002

Ostap Espel

引用次数: 0

Contrast of Paddle wheel technique and standard axial CT displayed significantly high sensitivity and specificity in detecting central pulmonary embolism 桨轮技术与标准轴位CT的对比显示，对中枢性肺栓塞的检测具有较高的敏感性和特异性

Clinical Imaging and Interventional Radiology Pub Date : 2018-10-29 DOI: 10.31579/JCITR.2018/006

Y. Chug

{"title":"Contrast of Paddle wheel technique and standard axial CT displayed significantly high sensitivity and specificity in detecting central pulmonary embolism","authors":"Y. Chug","doi":"10.31579/JCITR.2018/006","DOIUrl":"https://doi.org/10.31579/JCITR.2018/006","url":null,"abstract":"Paddle wheel technique is a reconstruction method of displaying images, which uses planar slabs pivot on the central horizontal axis at bifurcation of pulmonary artery trunk. With this method, each image depicts complete track of branching structures from central hilum to the periphery. Objective: The purpose of this study was to assess the role of paddle wheel reformation and compare it with standard axial multi detector CT images in cases of pulmonary embolism. Methods: CT scans of 50 patients presented for CT pulmonary angiography were selected and interpreted by two radiologists using reformatted paddle wheel technique besides standard axial CT scans. The scans were reviewed independently and randomly to reduce bias. Standard axial CT scan for pulmonary embolism was carried out with collimation of 1.25 mm, pitch of six and a reconstruction interval of 0.8 mm. Paddle wheel reconstruction was carried out by using inbuilt software, setting 5 mm slab thickness and 5 degree rotation. Reference standard was overall interpretation of axial CT scans by both the radiologists. Results: Sensitivity and specificity for axial images was between 90 to 100%; sensitivity for paddle wheel technique ranged from 65 to 72% while specificity turned out to be 80 to 100%. Final consensus agreement for standard axial imaging was higher than paddle wheel technique. Conclusion: No significant difference between two imaging methods was noted in cases of central pulmonary embolism, however standard axial imaging was better than paddle wheel technique in detecting peripheral pulmonary embolism.","PeriodicalId":196675,"journal":{"name":"Clinical Imaging and Interventional Radiology","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126358969","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}

引用次数: 0