发布求助
文献互助 智能选刊 最新文献

Bildgebung = Imaging最新文献

筛选
英文 中文
Functional MR imaging of anomalies of the aorta. 主动脉异常的功能性磁共振成像。
Bildgebung = Imaging Pub Date : 1996-06-01
F Schick, V Schülen, C D Claussen
{"title":"Functional MR imaging of anomalies of the aorta.","authors":"F Schick,&nbsp;V Schülen,&nbsp;C D Claussen","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Stenosis of a vessel is a well-known reason for increased resistance leading to lower flow rates. Other anomalies of the shape or additional blood influx are often considered to be less influential on flow dynamics inside the vessel. In this report, examples of irregular flow patterns in the human aorta are presented. The cases were selected from magnetic resonance examinations of 25 volunteers and more than 150 patients with dysfunctions of the heart or anomalies of the thoracic vessels. The protocol for magnetic resonance examinations included black blood imaging performed in the cine mode (with ECG triggering). Even minor modifications of the aortic shape are shown to result in marked disturbances of the laminar flow pattern in some patients. Effects of abnormal curvatures, additional blood influx, stenoses and dilatation of the aorta are demonstrated.</p>","PeriodicalId":77035,"journal":{"name":"Bildgebung = Imaging","volume":"63 2","pages":"105-12"},"PeriodicalIF":0.0,"publicationDate":"1996-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19729815","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
[Imaging methods in intensive care]. [重症监护的成像方法]。
Bildgebung = Imaging Pub Date : 1996-03-01
W Habscheid
{"title":"[Imaging methods in intensive care].","authors":"W Habscheid","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Imaging procedures are important for diagnosis and surveillance of patients in intensive care units. Radiologic examination, ultrasound and echocardiography are of paramount importance because they can be done bedside. Portable chest x-ray examination is the procedure of choice for documentation of tubes, lines and devices, estimation of cardiopulmonary function, demonstration of pulmonary edema, ARDS pneumonia, atelectasis and pneumothorax Plainfilm radiologic imaging of the abdomen is indicated when perforation ileus or acute intestinal pseudoobstruction is suspected Echocardiography can give information about ventricular function, pericardial effusion, cardiac valves, functional importance and complications of myocardial infarction, and hemodynamic changes of pulmonary embolism. Transesophageal echocardiography (TEE) is the method of choice when endocarditis, aortic dissection or cardiac thromboembolism is considered. Ultrasound can show many pathologic changes important for the management of intensive care patients concerning liver, gallbladder, bile duct, pancreas, kidney, spleen, pleural space and vessels. Other imaging procedures such as CT, methods of nuclear medicine, MRT, angiography etc. are done outside the intensive care unit and therefore need a more restricted indication.</p>","PeriodicalId":77035,"journal":{"name":"Bildgebung = Imaging","volume":"63 1","pages":"4-21"},"PeriodicalIF":0.0,"publicationDate":"1996-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19629564","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
[Theoretical principles and technical realization of high resolution nuclear magnetic resonance tomography with the example of a dedicated coil system]. [以专用线圈系统为例，高分辨率核磁共振断层成像的理论原理与技术实现]。
Bildgebung = Imaging Pub Date : 1996-03-01
J Mäurer, H Requardt, T Herrling, F D Knollmann, H Schedel, T J Vogl, R Felix
{"title":"[Theoretical principles and technical realization of high resolution nuclear magnetic resonance tomography with the example of a dedicated coil system].","authors":"J Mäurer,&nbsp;H Requardt,&nbsp;T Herrling,&nbsp;F D Knollmann,&nbsp;H Schedel,&nbsp;T J Vogl,&nbsp;R Felix","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The theory of high-resolution magnetic resonance imaging (MRI) and the physical properties of a dedicated coil system with its clinical application are reviewed. To evaluate the spatial resolution of the system, a phantom sample was depicted by a transverse T1-weighted sequence (time of repetition 500 ms, time of echo 25 ms, 256 x 256 matrix, 3 acquisitions, field of view 25 mm2). Relative signal intensity decrease was less using the 5-cm coil, as signal intensity field distribution depends on coil diameter. The phantom appeared as an attainable resolution of 100-microns pixel width using the 2.5-cm coil. For the 5-cm coil the pixel width was 200 microns, not accomplishing clear resolution of the phantom. Coil head choice depends on the anatomic depth of the target organ. Work-up of the skin and musculoskeletal lesions is the main indication for high-resolution MRI using surface coils.</p>","PeriodicalId":77035,"journal":{"name":"Bildgebung = Imaging","volume":"63 1","pages":"40-6"},"PeriodicalIF":0.0,"publicationDate":"1996-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19629565","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
[Doppler and color Doppler ultrasound diagnosis in differentiation of focal liver lesions]. [多普勒与彩色多普勒超声在肝局灶性病变鉴别诊断中的应用]。
Bildgebung = Imaging Pub Date : 1996-03-01
A Paintner, C Bayer, B Böttcher, H Wenk, W Swobodnik
{"title":"[Doppler and color Doppler ultrasound diagnosis in differentiation of focal liver lesions].","authors":"A Paintner,&nbsp;C Bayer,&nbsp;B Böttcher,&nbsp;H Wenk,&nbsp;W Swobodnik","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The frequent detection of benign liver lesions during ultrasound routine examination and a possible curative therapy of early detected malignant tumors require a reliable method of differentiation. Conventional gray-scale ultrasound, according to this problem, has been extended by the Duplex technique and color Doppler ultrasound. Measurement of blood flow velocity by Doppler in the center and at the periphery of liver lesions is not reliable enough to distinguish between benign and malignant lesions. Color Doppler ultrasound possesses some reliable criteria for differentiation. A central spot could be detected in 2 out of 12 hemangiomas, a giant spot in 1 out of 3 giant cavernous hemangiomas. The halo sign without detectable blood flow is considered to be specific for malignancy. We found this sign in 26 out of 81 malignant liver lesions and only in one benign lesion (sensitivity 32%, specificity 97%). The vascularization of focal liver lesions is excellently demonstrated with color Doppler ultrasound. This is very helpful for the diagnosis (e.g. \"chaotic blood vessel architecture' in malignant tumors) and for the therapy of focal liver lesions (e.g. follow-up examinations after chemotherapy or chemoembolization). Therefore, application of Duplex and color Doppler ultrasound is highly recommended as a noninvasive diagnostic method of first choice for unknown liver lesions.</p>","PeriodicalId":77035,"journal":{"name":"Bildgebung = Imaging","volume":"63 1","pages":"22-6"},"PeriodicalIF":0.0,"publicationDate":"1996-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19630190","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
Interventional radiology in the treatment of blunt liver trauma: case report with review of literature. 介入放射治疗钝性肝损伤1例报告并文献复习。
Bildgebung = Imaging Pub Date : 1996-03-01
J Harms, H Helmberger, W Golder, C D Heidecke
{"title":"Interventional radiology in the treatment of blunt liver trauma: case report with review of literature.","authors":"J Harms,&nbsp;H Helmberger,&nbsp;W Golder,&nbsp;C D Heidecke","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Hepatic trauma remains one of the most serious problems in abdominal injury. Whenever possible a non-resectional approach is clearly preferred. Refinements of interventional radiology as an adjunct to surgery in blunt liver trauma may play an increasingly vital role in reducing mortality. The literature is reviewed with reference to the diagnostic procedure and the treatment strategy in blunt liver trauma.</p>","PeriodicalId":77035,"journal":{"name":"Bildgebung = Imaging","volume":"63 1","pages":"51-4"},"PeriodicalIF":0.0,"publicationDate":"1996-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19629567","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
[Pancreaticoscopy: experiences, possibilities and limits]. 【胰镜检查:经验、可能性和局限性】。
Bildgebung = Imaging Pub Date : 1996-03-01
W Wegerle, T Heid, W Schmitt
{"title":"[Pancreaticoscopy: experiences, possibilities and limits].","authors":"W Wegerle,&nbsp;T Heid,&nbsp;W Schmitt","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Cholangioscopy in the mother-baby technique is well accepted and widespread these days. On the other hand, the peroral pancreaticoscopy (POPS) is still in the initial phase of development. In cases of doubtful stenoses, duct discontinuation, and radiolucent shadows during an endoscopic retrograde cholangiopancreatography (ERCP) the POPS can be carried out as a clarifying examination. Two variations of babyscopes are currently available. The ultra-thin endoscope allows only limited results due to the lack of tip control and irrigation. On the other hand, devices with an outer diameter of 3.2 mm and larger provide for a sufficient assessment of the duct mucosa. Biopsies can be taken through the working channel, and the probes for intracorporeal shock wave lithotripsy (ISWL) can be placed under visual control. We performed POPS on 9 patients with an average age of 60 years using a tip-controlled endoscope. In 8 of these cases a diagnostic or therapeutic advantage was gained. A 29-year old patient with alcohol-induced chronic pancreatitis and an occluding duct stone underwent electrohydraulic lithotrips (EHL). A 60-year-old patient with pancreatic duct stones underwent laser-induced shock wave lithotripsy (LISL) in 2 sessions. Afterwards remaining parts of the calculi were extracted. The importance of this method in diagnosis and therapy of pancreatic diseases remains to be established, as evaluation studies of any great extent are still to be done.</p>","PeriodicalId":77035,"journal":{"name":"Bildgebung = Imaging","volume":"63 1","pages":"28-33"},"PeriodicalIF":0.0,"publicationDate":"1996-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19630191","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
Power Doppler--a new tool for transcranial duplex assessment of intracranial vasculature. 功率多普勒——经颅双工评估颅内血管系统的新工具。
Bildgebung = Imaging Pub Date : 1996-03-01
B Griewing, C Doherty, J A Zeller, G Kallwellis, M L Walker, C Kessler
{"title":"Power Doppler--a new tool for transcranial duplex assessment of intracranial vasculature.","authors":"B Griewing,&nbsp;C Doherty,&nbsp;J A Zeller,&nbsp;G Kallwellis,&nbsp;M L Walker,&nbsp;C Kessler","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The present study was undertaken to assess the clinical use of power Doppler (PD) as a new tool for transcranial vessel imaging. Power Doppler displays the integrated power of the Doppler signal instead of the Doppler frequency shift used in the conventional color flow Doppler (CFD) technique. Twenty-one patients were evaluated who had intracranial malformations or arterial stenoses [4 middle cerebral artery (MCA) stenoses, 2 intracranial carotid stenoses, 7 arteriovenous malformations (AVM), 5 intracranial carotid aneurysms, 3 Moya-Moya syndromes]. The PD results were compared with those obtained from CFD and digital subtraction angiography (DSA). Power Doppler was able to visualize 3 of 4 MCA stenoses with greater morphological detail than CFD, whereas PD and CFD were equally effective in diagnosing carotid stenoses. All AVMs were visualized using PD as well as CFD, but again PD revealed more morphological details, in a manner similar to DSA. Power Doppler was also superior to CFD in imaging intracerebral aneurysms and pathological collateralization associated with Moya-Moya syndromes. It is evident from these data that PD permits reliable and detailed transcranial imaging and therefore is a superior method for visualizing intracerebral vascular malformations and arterial stenoses.</p>","PeriodicalId":77035,"journal":{"name":"Bildgebung = Imaging","volume":"63 1","pages":"35-8"},"PeriodicalIF":0.0,"publicationDate":"1996-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19629563","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
[Reversible esophageal dysfunction as a side effect of levodopa]. [可逆性食管功能障碍作为左旋多巴的副作用]。
Bildgebung = Imaging Pub Date : 1996-03-01
H Kellner, U Liegl, M Frank, W G Zoller
{"title":"[Reversible esophageal dysfunction as a side effect of levodopa].","authors":"H Kellner,&nbsp;U Liegl,&nbsp;M Frank,&nbsp;W G Zoller","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>We are reporting the case of a 94-year-old male patient with a 10-year history of Parkinson's disease, who was admitted to our hospital with acute obstruction of esophageal passage. Esophageal obstruction was refractory to endoscopic intervention. However, discontinuation of the pre-existing levodopa medication led to its resolution within hours. While dysphagia is commonly encountered in patients with Parkinson's disease, the observed succession of drug discontinuation and resolution of obstruction in this case suggests an as yet rarely described side effect of levodopa. This potential side effect should be included in the differential diagnosis of dysphagia in Parkinson's disease, especially in the case of older patients, who may exhibit an increased rate of intestinal absorption of levodopa.</p>","PeriodicalId":77035,"journal":{"name":"Bildgebung = Imaging","volume":"63 1","pages":"48-50"},"PeriodicalIF":0.0,"publicationDate":"1996-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19629566","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
[Ultrasound findings in HIV patients]. [艾滋病患者的超声检查结果]。
Bildgebung = Imaging Pub Date : 1995-12-01
R Lüthen, C Niederau
{"title":"[Ultrasound findings in HIV patients].","authors":"R Lüthen,&nbsp;C Niederau","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A wide range of abnormal findings can be seen at abdominal ultrasonography in patients with HIV infection. The most frequent findings, hepatomegaly, splenomegaly, and enlarged lymph nodes, are nonspecific, however. Increased echogenicity or focal lesions of parenchymal organs, dilated bile ducts, nephromegaly, gut wall thickening or abscesses are uncommon findings. If there is clinical suspicion for a treatable disease, abnormalities seen on ultrasound examination of HIV-infected patients need to be confirmed by guided biopsy.</p>","PeriodicalId":77035,"journal":{"name":"Bildgebung = Imaging","volume":"62 4","pages":"271-80"},"PeriodicalIF":0.0,"publicationDate":"1995-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19630185","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
[Ultrasound skin findings in HIV infection by imaging with 7.5 MHz linear transducers]. [7.5 MHz线性换能器成像在HIV感染中的超声皮肤表现]。
Bildgebung = Imaging Pub Date : 1995-12-01
J R Bogner, M Röcken
{"title":"[Ultrasound skin findings in HIV infection by imaging with 7.5 MHz linear transducers].","authors":"J R Bogner,&nbsp;M Röcken","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Sonography is an important tool in aiding the diagnosis of tumor-like and cystic findings in the skin and soft tissues. This is also true in patients with HIV infection and AIDS. While sonography of the skin often is performed with 20-MHz transducers, also lower-frequency devices which are more readily available contribute substantially to dermatologic diagnoses. The domain of skin sonography are tumors; in the special context of AIDS, Kaposi's sarcoma and lymphomas are of major interest. The characteristic appearance of Kaposi's tumors is a spindle-shaped outline with low echogenicity and relative homogenicity. The tumor volume is easily established using measurements in two directions. Shrinkage of the volume after therapy, e.g. chemotherapy, may be documented in a more objective manner as compared to subjective rating of nodularity. Several characteristic images of Kaposi's sarcoma, lymphoma, lymph nodes, lipoma, and cysts are demonstrated in the paper.</p>","PeriodicalId":77035,"journal":{"name":"Bildgebung = Imaging","volume":"62 4","pages":"281-6"},"PeriodicalIF":0.0,"publicationDate":"1995-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19630186","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信