[Imaging of the head and neck region].
Abstract Tumors of the head and neck are predominantly squamous cell carcinomas and those of the salivary glands are predominantly adenocarcinomas, adenoid cystic carcinomas and mucoepidermoid carcinomas. In 2011 the incidence of tumors of the oral cavity and pharynx in Germany was 6839 (5026 male and 1813 female) and of the larynx 1878 (1642 male and 236 female). The incidence of tumors of the nose and paranasal sinuses (467) and salivary glands (470) were much lower ( www.krebsdaten.de/abfrage ). The primary aim of imaging in head and neck cancer is staging of the disease and a precise assessment of tumor invasi...
Source: Der Radiologe - January 29, 2016 Category: Radiology Authors: Lell M, Mantsopoulos K, Uder M, Wuest W Tags: Radiologe Source Type: research

[MRI methods for pulmonary ventilation and perfusion imaging].
Abstract CLINICAL/METHODICAL ISSUE: Separate assessment of respiratory mechanics, gas exchange and pulmonary circulation is essential for the diagnosis and therapy of pulmonary diseases. Due to the global character of the information obtained clinical lung function tests are often not sufficiently specific in the differential diagnosis or have a limited sensitivity in the detection of early pathological changes. STANDARD RADIOLOGICAL METHODS: The standard procedures of pulmonary imaging are computed tomography (CT) for depiction of the morphology as well as perfusion/ventilation scintigraphy and single photon...
Source: Der Radiologe - January 27, 2016 Category: Radiology Authors: Sommer G, Bauman G Tags: Radiologe Source Type: research

[Percutaneous access for endovascular therapy of PAOD : Femoral, popliteal and pedal].
CONCLUSION: The transfemoral access remains the first choice for the treatment of patients with PAOD. Additional retrograde approaches from a more distal access constitute an alternative after failure of antegrade intervention attempts. PMID: 26801186 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - January 22, 2016 Category: Radiology Authors: Kamper L, Haage P Tags: Radiologe Source Type: research

[Selected clinically established and scientific techniques of diffusion-weighted MRI : In the context of imaging in oncology].
Abstract BACKGROUND: Diffusion-weighted imaging (DWI) is a magnetic resonance imaging (MRI) technique that was established in the clinical routine primarily for the detection of brain ischemia. In the past 15 years its clinical use has been extended to oncological radiology, as tumor and metastases can be depicted in DWI due to their hypercellular nature. PRINCIPLES: The basis of DWI is the Stejskal-Tanner experiment. The diffusion properties of tissue can be visualized after acquisition of at least two diffusion-weighted series using echo planar imaging and a specific sequence of gradient pulses. CLINIC...
Source: Der Radiologe - January 22, 2016 Category: Radiology Authors: Freitag MT, Bickelhaupt S, Ziener C, Meier-Hein K, Radtke JP, Mosebach J, Kuder TA, Schlemmer HP, Laun FB Tags: Radiologe Source Type: research

[Functional MRI 2.0 : ²³Na and CEST imaging].
[Functional MRI 2.0 : ²³Na and CEST imaging]. Radiologe. 2016 Jan 21; Authors: Haneder S, Konstandin S Abstract In recent years the purely morphological magnetic resonance imaging (MRI) has been increasingly flanked by so-called functional imaging methods, such as diffusion-weighted imaging (DWI), to obtain additional information about tissue or pathological processes. This review article presents two MR techniques that can detect physiological processes in the human body. In contrast to all other functional MR imaging techniques, which are based on hydrogen protons, the first technique...
Source: Der Radiologe - January 21, 2016 Category: Radiology Authors: Haneder S, Konstandin S Tags: Radiologe Source Type: research

[Quantitative perfusion imaging in magnetic resonance imaging].
s M Abstract CLINICAL/METHODICAL ISSUE: Magnetic resonance imaging (MRI) is recognized for its superior tissue contrast while being non-invasive and free of ionizing radiation. Due to the development of new scanner hardware and fast imaging techniques during the last decades, access to tissue and organ functions became possible. One of these functional imaging techniques is perfusion imaging with which tissue perfusion and capillary permeability can be determined from dynamic imaging data. STANDARD RADIOLOGICAL METHODS: Perfusion imaging by MRI can be performed by two approaches, arterial spin labeling (ASL) ...
Source: Der Radiologe - January 21, 2016 Category: Radiology Authors: Zöllner FG, Gaa T, Zimmer F, Ong MM, Riffel P, Hausmann D, Schoenberg SO, Weis M Tags: Radiologe Source Type: research

[Indications and results of endovascular therapy of critical limb ischemia].
CONCLUSION: The CLI is a disease with high mortality and morbidity risks. Due to the comparable amputation-free survival times with lower complication rates in the published data, in most patients an endovascular first strategy in experienced centers can be justified. PMID: 26796338 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - January 21, 2016 Category: Radiology Authors: Zimmermann A, Ludwig U, Eckstein HH Tags: Radiologe Source Type: research

[Functional brain imaging].
Abstract METHOD: Functional magnetic resonance imaging (fMRI) is a non-invasive method that has become one of the major tools for understanding human brain function and in recent years has also been developed for clinical applications. PERFORMANCE: Changes in hemodynamic signals correspond to changes in neuronal activity with good spatial and temporal resolution in fMRI. Using high-field MR systems and increasingly dedicated statistics and postprocessing, activated brain areas can be detected and superimposed on anatomical images. Currently, fMRI data are often combined in multimodal imaging, e. g. wit...
Source: Der Radiologe - January 14, 2016 Category: Radiology Authors: Gizewski ER Tags: Radiologe Source Type: research

[Mechanical thrombectomy - technique].
h W Abstract Mechanical thrombectomy with stent retrievers in acute stroke has emerged as the technique with the highest recanalization rate of therapeutic procedures available so far. Recently it was demonstrated that compared to intravenous rTPA alone, mechanical thrombectomy improves outcomes of patients with acute occlusions of intracranial arteries of the anterior circulation in several randomized clinical trials. In this article we will give an overview of the steps required for the thrombectomy procedure. PMID: 26762324 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - January 13, 2016 Category: Radiology Authors: Yilmaz U, Mühl-Benninghaus R, Reith W Tags: Radiologe Source Type: research

[Neuroimaging of cerebral vasculitis].
l S Abstract Cerebral vasculitis can have a variety of origins. Furthermore, there are no vasculitis-specific symptoms or imaging signs and vasculitis of the CNS can mimic many other neurological diseases, which require different treatment approaches. Thus, the clinical and radiological diagnosis of cerebral vasculitis is challenging. Magnetic resonance imaging (MRI) and MR angiography (MRA) should be the radiological imaging methods of choice to assess the degree of parenchymal damage and to detect vessel wall changes. If the results are unclear digital subtraction angiography (DSA) should be pursued in order to ...
Source: Der Radiologe - January 11, 2016 Category: Radiology Authors: Wengenroth M, Saam T, Hähnel S Tags: Radiologe Source Type: research

[Many faces of sarcoidosis].
Abstract Sarcoidosis is a systemic, inflammatory, granulomatous disease of unknown origin that can involve any organ. More than 90 % of patients have thoracic sarcoidosis, which most frequently presents with bilateral hilar lymphadenopathy. In approximately 20 % of patients with thoracic sarcoidosis there is involvement of the lung parenchyma as well as mostly asymptomatic cardiac sarcoidosis in up to 55 % of patients. Most patients are asymptomatic and the diagnosis is an incidental finding on chest X-ray or during clarification of unspecific symptoms, such as fatigue or cough. In approximate...
Source: Der Radiologe - January 5, 2016 Category: Radiology Authors: Prosch H, Vonbank K, Loewe C, Beitzke D Tags: Radiologe Source Type: research

[Treatment of acute stroke].
PMID: 26732656 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - January 5, 2016 Category: Radiology Authors: Reith W Tags: Radiologe Source Type: research

[Erratum to: Treatment planning with functional MRI].
PMID: 26732657 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - January 5, 2016 Category: Radiology Authors: Georg P, Andrzejewski P, Pinker K, Georg D Tags: Radiologe Source Type: research

[Stroke : How can "time is brain" be translated into clinical practice?]
DISCUSSION: Measures to optimize therapy times are mostly organizational and cause little or no extra costs. When implemented these measures can lead to a significant improvement in therapy times and functional patient outcome. PMID: 26728155 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - January 4, 2016 Category: Radiology Authors: Ragoschke-Schumm A Tags: Radiologe Source Type: research

[Mobile stroke unit for prehospital stroke treatment].
Abstract CLINICAL ISSUE AND DIAGNOSTIC STANDARDS: The management of acute stroke patients suffers from several major problems in the daily clinical routine. In order to achieve optimal treatment a complex diagnostic work-up and rapid initiation of therapy are necessary; however, most patients arrive at hospital too late for any type of acute stroke treatment, although all forms of treatment are highly time-dependent according to the generally accepted "time is brain" concept. DIAGNOSTIC INNOVATIONS: Recently, two randomized clinical trials demonstrated the feasibility of prehospital stroke diagnosti...
Source: Der Radiologe - January 4, 2016 Category: Radiology Authors: Walter S, Grunwald IQ, Fassbender K Tags: Radiologe Source Type: research

[Endovascular treatment of acute extracranial carotid artery occlusion].
Abstract Acute extracranial internal carotid artery (ICA) occlusions resulting in ischemic stroke are different from other forms of acute occlusions of cerebral vessels. The pathophysiological process involved in occlusion of the extracranial ICA is similar to processes observed in acute occlusion of the coronary arteries. The occluded segment of the ICA predominantly consists of an atherosclerotic plaque and a superimposed thrombus. Although the value of endovascular therapy has been established for intracranial occlusions, the acute treatment of extracranial ICA occlusions has not yet been proven in randomized s...
Source: Der Radiologe - January 4, 2016 Category: Radiology Authors: Boutchakova M, Papanagiotou P Tags: Radiologe Source Type: research

[Pitfalls in mechanical recanalization].
This article is dealing with various pitfalls which could face the interventionalist during endovascular therapy and can complicate or even make the procedure impossible. PMID: 26728158 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - January 4, 2016 Category: Radiology Authors: Mühl-Benninghaus R Tags: Radiologe Source Type: research

[Mechanical Thrombectomy - Recent Trials].
s R Abstract BACKGROUND: The publications of five prospective randomized trials have made 2015 a milestone in the development of stroke therapy. Up till then, IV rtPA had been the only evidence-based recanalizing treatment for ischemic stroke. AIM: In this article we review the results of five trials: MR CLEAN, ESCAPE, EXTEND IA, SWIFT PRIME, and REVASCAT. PMID: 26696536 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - December 22, 2015 Category: Radiology Authors: Yilmaz U, Mühl-Benninghaus R Tags: Radiologe Source Type: research

[Intubation and sedation in the endovascular treatment of acute cerebral infarction].
Abstract In the past complex intracranial treatments demanded intubation and general anesthesia of the patient. With increasing rate of endovascular local treatment of acute stroke more and more neurointerventionalists report that recanalisation techniques can be performed in sedation of the patient without the need of additional intubation. Although prospective studies are lacking retrospective studies have shown that the risk of iatrogeneous vessel injuries without global anesthesia is not increased but outcomes in case of conscious sedations are better compared with intubation and general anesthesia. PMID:...
Source: Der Radiologe - December 11, 2015 Category: Radiology Authors: Ahlhelm FJ Tags: Radiologe Source Type: research

[Abdominal magnetic resonance imaging].
PMID: 26634354 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - December 3, 2015 Category: Radiology Authors: Baltzer PA, Ba-Ssalamah A, Herold C Tags: Radiologe Source Type: research

[Mechanical thrombectomy : Acute complications and delayed sequelae].
CONCLUSION: Clinically relevant complications of mTE are rare. Preventive measures and effective management of complications may even increase safety. Stenoses occasionally occur as a long-term side effect but are asymptomatic in the majority of cases. PMID: 26631170 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - December 2, 2015 Category: Radiology Authors: Kurre W, Bäzner H, Henkes H Tags: Radiologe Source Type: research

[Modern magnetic resonance imaging of the liver].
Abstract Magnetic resonance imaging (MRI) of the liver has become an essential tool in the radiological diagnostics of both focal and diffuse diseases of the liver and is subject to constant change due to technological progress. Recently, important improvements could be achieved by innovations regarding MR hardware, sequences and postprocessing methods. The diagnostic spectrum of MRI could be broadened particularly due to new examination sequences, while at the same time scanning time could be shortened and image quality has been improved. The aim of this article is to explain both the technological background and...
Source: Der Radiologe - December 1, 2015 Category: Radiology Authors: Hedderich DM, Weiss K, Maintz D, Persigehl T Tags: Radiologe Source Type: research

[Functional magnetic resonance imaging of the kidneys].
Abstract Interest in functional renal magnetic resonance imaging (MRI) has significantly increased in recent years. This review article provides an overview of the most important functional imaging techniques and their potential clinical applications for assessment of native and transplanted kidneys, with special emphasis on the clarification of renal tumors. PMID: 26628260 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - December 1, 2015 Category: Radiology Authors: Lanzman RS, Notohamiprodjo M, Wittsack HJ Tags: Radiologe Source Type: research

[Mobile IT : Possibilities and barriers of mHealth].
This article assesses the options and potential of mHealth and also takes a critical look at potential obstacles. As this field is very broad this critical analysis is illustrated by means of three exemplary application areas: mHealth in radiology, the influence of mHealth on research and mHealth as an enabler of new services, always with examples from other countries.The use of mHealth in radiology currently often develops empirically from existing applications in a relatively unstructured way and benefiting from the dynamic development of mobile technology. The possibilities range from viewing images at the bedside via m...
Source: Der Radiologe - November 26, 2015 Category: Radiology Authors: Böckmann B Tags: Radiologe Source Type: research

[Functional MR imaging of the liver].
This article provides the reader with the basic principles of functional MRI of the liver and discusses the importance in a clinical context. PMID: 26610680 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - November 26, 2015 Category: Radiology Authors: Wibmer A, Nolz R, Trauner M, Ba-Ssalamah A Tags: Radiologe Source Type: research

[Combined PET-MRI of the abdomen].
Abstract The first fully integrated combined positron emission tomography-magnetic resonance imaging (PET-MRI) scanners have been clinically available since 2010. Large prospective studies regarding indications and diagnostic accuracy of this new modality are not yet available; however, preliminary studies have shown a higher diagnostic accuracy and confidence compared to PET-computed tomography (PET-CT) in regions where MRI is known to be superior to CT, such as the liver. The benefit of MRI in accurate lesion characterization and the additional value of diffusion-weighted imaging (DWI) as a complementary functio...
Source: Der Radiologe - November 26, 2015 Category: Radiology Authors: Vag T, Eiber M, Schwaiger M Tags: Radiologe Source Type: research

[Physiology made visible].
PMID: 26610682 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - November 26, 2015 Category: Radiology Authors: Ladd ME, Delorme S Tags: Radiologe Source Type: research

[Gynecological tumors of the true pelvis : Radiological diagnosis for pelvic tumors made simple].
Abstract Tumors of the reproductive organs are among the most common female tumors. Computed tomography (CT) and magnetic resonance imaging (MRI) are used for establishing the differential diagnosis, for staging and increasingly for treatment stratification. Sonography is the first line imaging modality for assessing benign and malignant tumors of the uterus as well as ovarian and adnexal lesions. In sonographically indeterminate masses MRI is used for clarification as it allows not only a prediction of the dignity but also in most cases a specific diagnosis. The MRI examination is also superior to CT in the asses...
Source: Der Radiologe - November 26, 2015 Category: Radiology Authors: Meissnitzer M, Meissnitzer T, Forstner R Tags: Radiologe Source Type: research

[Research applications in digital radiology : Big data and co].
The objective of this article is to present current research results from projects on the use of image data for clinical decision support. An infrastructure that can allow large volumes of data to be accessed is presented. In this way the best performing tools can be identified without the medical data having to leave secure servers. The text presents the results of the VISCERAL and Khresmoi EU-funded projects, which allow the analysis of previous cases from institutional archives to support decision-making and for process automation. The results also represent a secure evaluation environment for medical image analysis. Th...
Source: Der Radiologe - November 11, 2015 Category: Radiology Authors: Müller H, Hanbury A Tags: Radiologe Source Type: research

[Modern MRI of the small bowell].
Abstract CLINICAL METHODOLOGICAL ISSUES: The radiological diagnostics of diseases of the small intestine have undergone a great change in the last two decades. Through rapid progress with new treatments and an increasing therapeutic focus on transmural healing, a complete evaluation of the gastrointestinal tract is now crucial. STANDARD RADIOLOGICAL METHODS: With the introduction of endoscopy, gastrointestinal imaging with a relatively high radiation exposure had only limited applications. The development of cross-sectional imaging allowed a much broader radiological evaluation of abdominal diseases. Due to r...
Source: Der Radiologe - November 11, 2015 Category: Radiology Authors: Scharitzer M, Ba-Ssalamah A Tags: Radiologe Source Type: research

[Spinal cord displacement with progressive paraplegia].
s C PMID: 26561026 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - November 4, 2015 Category: Radiology Authors: Kaschner MG, Turowski B, Hänggi D, Mathys C Tags: Radiologe Source Type: research

[Controlling in outpatient radiology].
Abstract Radiology is among the medical disciplines which require the highest investment costs in the healthcare system. The need to design efficient workflows to ensure maximum utilization of the equipment has long been known. In order to be able to establish a sound financial plan prior to a project or equipment purchase, the costs of an examination have to be broken down by modality and compared with the reimbursement rates. Obviously, the same holds true for operative decisions when scarce human resources have to be allocated. It is the task of controlling to review the economic viability of the different moda...
Source: Der Radiologe - November 4, 2015 Category: Radiology Authors: Baum T Tags: Radiologe Source Type: research

[Evaluation in medical residency training programs].
DISCUSSION: The system was considered to be practical to use and stable in its functionality. The centrally conducted anonymous national survey of residents revealed a noticeable improvement of satisfaction with the institute assessment for the criterion "regular feedback"compared to the national average. Since its implementation the system has been further developed and extended and is now available for other institutions. PMID: 26538135 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - November 4, 2015 Category: Radiology Authors: Kolokythas O, Patzwahl R, Straka M, Binkert C Tags: Radiologe Source Type: research

[Local imaging of rectal cancer - update 2015 : MRI as imaging biomarker].
AO Abstract The significance of state of the art magnetic resonance imaging (MRI) for rectal cancer goes far beyond the detection and diagnostics of local dispersion and is increasingly focusing on patient prognosis. The identification of prognostic factors, such as tumor (T) and nodal (N) status, involvement of the circumferential resection margin, presence of extramural vascular invasion, tumor response prediction following neoadjuvant therapy, therapy-related changes in microcirculation, permeability and tissue cellularity and structured reporting are important elements of advanced rectal cancer imaging. In th...
Source: Der Radiologe - November 4, 2015 Category: Radiology Authors: Schäfer AO Tags: Radiologe Source Type: research

[Intestinal wall edema and echo-free abdominal fluid in abdominal sonography after blunt force abdominal trauma].
PMID: 26526408 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - November 2, 2015 Category: Radiology Authors: Ritter L, Exner M, Schaudinn A, Sorge I, Prenzel F Tags: Radiologe Source Type: research

[Multifocal tumors in a 56-year-old male patient].
PMID: 26515284 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - October 29, 2015 Category: Radiology Authors: Kaissis G, Eiber M, Becker V, Holzapfel K, Rummeny EJ, Braren R Tags: Radiologe Source Type: research

[MR imaging of the prostate].
Abstract CLINICAL ISSUE: Prostate cancer is the most common form of cancer in men in Germany; however, there is a distinct difference between incidence and mortality. STANDARD TREATMENT: The detection of prostate cancer is based on clinical and laboratory testing using serum prostate-specific antigen (PSA) levels and transrectal ultrasound with randomized biopsy. DIAGNOSTIC WORK-UP: Multiparametric MR imaging of the prostate can provide valuable diagnostic information for detection of prostate cancer, especially after negative results of a biopsy prior to repeat biopsy. PERFORMANCE: In addition the ...
Source: Der Radiologe - October 29, 2015 Category: Radiology Authors: Asbach P, Haas M, Hamm B Tags: Radiologe Source Type: research

[Treatment planning with functional MRI].
Abstract CLINICAL/METHODICAL ISSUE: The aim of magnetic resonance imaging (MRI) guided radiotherapy is high precision in treatment delivery. With new developments it is possible to focus the high dose irradiation on the tumor while sparing the surrounding tissue. The achievements in precision of the treatment planning and delivery warrant equally precise tumor definition. STANDARD RADIOLOGICAL METHODS: In conventional radiation therapy it is necessary to carry out a planning computed tomography (CT). For many tumors there is also need for an additional morphological MRI because of more accurate tumor definiti...
Source: Der Radiologe - October 27, 2015 Category: Radiology Authors: Georg P, Andrzejewski P, Pinker K, Georg D Tags: Radiologe Source Type: research

[Recurrent migratory knee pain].
PMID: 26508136 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - October 27, 2015 Category: Radiology Authors: Reimer V, Ehrhardt A, Freitag T, Beer M, Schmidt SA Tags: Radiologe Source Type: research

[Possibilities of sonographic image fusion : Current developments].
Abstract CLINICAL/METHODICAL ISSUE: For diagnostic and interventional procedures ultrasound (US) image fusion can be used as a complementary imaging technique. METHODICAL INNOVATIONS: Image fusion has the advantage of real time imaging and can be combined with other cross-sectional imaging techniques. PERFORMANCE: With the introduction of US contrast agents sonography and image fusion have gained more importance in the detection and characterization of liver lesions. ACHIEVEMENTS: Fusion of US images with computed tomography (CT) or magnetic resonance imaging (MRI) facilitates the diagnostics and po...
Source: Der Radiologe - October 13, 2015 Category: Radiology Authors: Jung EM, Clevert DA Tags: Radiologe Source Type: research

[The silent revolution].
PMID: 26440658 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - October 6, 2015 Category: Radiology Authors: Delorme S, Jenderka KV Tags: Radiologe Source Type: research

[SENDS criteria from the diversification of MAST procedures : Implementation of preoperative simulation].
Abstract CINICAL ISSUE: Minimal access spinal technologies (MAST) lead to a diversification of surgical procedures, which requires careful selection of the procedure and outcome monitoring. For a rational selection of the procedure simulation, endoscopy, navigation, decompression and stabilization (SENDS) criteria can be derived from the development of the MAST procedures. Preoperative simulation has diagnostic and therapeutic values. The SENDS criteria can be verified indirectly via outcome control. STANDARD TREATMENT: Biomechanically meaningful diagnostic x-rays of the spinal segment to be surgically treate...
Source: Der Radiologe - October 6, 2015 Category: Radiology Authors: Rieger B Tags: Radiologe Source Type: research

[Clinical forensic imaging : Detection and documentation of internal injuries in living victims of violence].
Abstract External examination of the body surface with documentation of all visible findings can still be regarded as the status quo of clinical forensic injury assessment. It is obvious that internal findings cannot be detected using this technique. For obtaining such findings accessible well-established radiological techniques, such as computed tomography (CT) and magnetic resonance imaging (MRI) should be used. Especially MRI with no damaging radiation exposure for the examined person allows the detection of internal soft tissue and organ damage and offers a great potential regarding new techniques for allowing...
Source: Der Radiologe - October 6, 2015 Category: Radiology Authors: Glemser PA, Krauskopf A, Simons D, Schlemmer HP, Yen K Tags: Radiologe Source Type: research

[Ultrasound elastography].
Abstract Noninvasive, ultrasound-based methods for visualizing and measuring tissue elasticity are becoming more and more common in routine practice. Using hepatic shear wave elastography, cut-off levels can help to detect the degree of relevant fibrosis (F ≥ 2) with a diagnostic accuracy using the area under the reader operating characteristic (AUROC) of 87 % and cirrhosis (F = 4, AUROC 93 %). Normal values virtually exclude liver cirrhosis (negative predictive value up to 97 %) and high shear wave velocities predict complications in the course of primary sclerosing cho...
Source: Der Radiologe - October 5, 2015 Category: Radiology Authors: Goertz RS Tags: Radiologe Source Type: research

[Optoacoustic imaging].
Abstract CLINICAL/METHODICAL ISSUE: Imaging modalities play an increasing role in today's medical diagnostics. Among them, ultrasound (US) is one the most widespread techniques although it has relatively poor soft tissue contrast. Furthermore, US is poorly suited as a modality for molecular imaging (MI). STANDARD RADIOLOGICAL METHODS: Methods such as Doppler and contrast-enhanced US (CEUS) allow functional imaging of the vasculature; however, ultrasound-based MI remains limited to the vascular network due to the size of available contrast agents. METHODICAL INNOVATIONS: Optoacoustic imaging combines the ...
Source: Der Radiologe - October 5, 2015 Category: Radiology Authors: Fournelle M, Tretbar S Tags: Radiologe Source Type: research

[Transcranial focused ultrasound : Neurological applications of magnetic resonance-guided high-intensity focused ultrasound].
CONCLUSION: This article describes the technical basis of transcranial focused ultrasound neurosurgery and summarizes the current clinical experience of this new class of image-guided, non-invasive interventions. PMID: 26438092 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - October 5, 2015 Category: Radiology Authors: Werner B, Martin E Tags: Radiologe Source Type: research

[Ultrasound motion tracking for radiation therapy].
CONCLUSION: It is not clear whether ultrasound motion tracking will become established in the clinical routine although all technical prerequisites can be considered as fulfilled, such that exciting progress in this field of research is still to be expected. PMID: 26438093 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - October 5, 2015 Category: Radiology Authors: Jenne J, Schwaab J Tags: Radiologe Source Type: research

[Molecular ultrasound imaging : Clinical applications].
CONCLUSION: Molecular ultrasound imaging is rapidly evolving in preclinical research for a broad field of applications. Translation to clinical practice is conceivable for many indications and is already ongoing for BR55. PMID: 26438094 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - October 5, 2015 Category: Radiology Authors: Rix A, Palmowski M, Kiessling F Tags: Radiologe Source Type: research

[Interventions on the spine].
PMID: 26432700 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - October 2, 2015 Category: Radiology Authors: Helmberger T Tags: Radiologe Source Type: research

[Kyphoplasty combined with intraoperative radiotherapy (Kypho-IORT) : Alternative therapy for patients with oligometastatic spinal metastases].
CONCLUSION: The Kypho-IORT procedure is a safe, feasible and beneficial modern treatment option for instant stabilization and local tumor control in patients with spinal metastases. More than 100 operations have been successfully performed so that the method can be deemed suitable for inclusion in the clinical routine. A phase II dose escalation study has now been completed and submitted for publication and a 2-arm non-inferiority trial (phase III study) for comparison with conventional irradiation is in progress. PMID: 26420600 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - September 29, 2015 Category: Radiology Authors: Bludau F, Reis T, Schneider F, Clausen S, Wenz F, Obertacke U Tags: Radiologe Source Type: research