[Osteochondroma and multiple osteochondromas : Recommendations on the diagnostics and follow-up with special consideration to the occurrence of secondary chondrosarcoma.]
CONCLUSIONS: The risk of malignant transformation of SO is generally low. Axial lesions as well as recurrent osteochondromas and MO seem to have an increased risk of malignant transformation. The follow-up, requiring sufficient primary diagnostics, includes regular self-control and can usually be clinically carried out in more peripherally located lesions but in certain cases supplementary X-ray imaging is needed. In cases of anatomical regions which are more difficult to access manually, follow-up examination by magnetic resonance imaging (MRI) is the method of choice. Especially MO patients seem to benefit from long-term...
Source: Der Radiologe - October 17, 2013 Category: Radiology Authors: Herget GW, Kontny U, Saueressig U, Baumhoer D, Hauschild O, Elger T, Südkamp NP, Uhl M Tags: Radiologe Source Type: research

[Monitoring of radiological interventions.]
PMID: 24126475 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - October 16, 2013 Category: Radiology Authors: Helmberger T Tags: Radiologe Source Type: research

[Magnetic resonance imaging in patients with magnetic hearing implants : Overview and procedural management.]
CONCLUSION: For patients wearing hearing implants with an implantable magnet the indications for MRI in devices with MRI certification should be rigorously restricted. Possible defects/dislocation of the implants may occur and the quality of the skull MRI images is reduced. A close contact between the radiologist and the implanting team is required. Other diagnostic procedure options should be exhausted before employing MRI. PMID: 24113904 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - October 12, 2013 Category: Radiology Authors: Nospes S, Mann W, Keilmann A Tags: Radiologe Source Type: research

[Cardiac valve diseases.]
PMID: 24068291 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - September 27, 2013 Category: Radiology Authors: Schwarz F, Reiser MF Tags: Radiologe Source Type: research

[Imaging monitors - requirements and pitfalls.]
Abstract When applying the standard DIN V 6868-57 rule "acceptance testing for image display devices" it always comes to misunderstandings in the practical implementation. In a brief summary the most important requirements are presented. With the pending replacement of DIN V 6868-57 by DIN 6868-157 "acceptance and constancy tests of image display systems in their environment" there will be fundamental changes. Future requirements are presented as examples. Besides the introduction of a classroom concept and new test images, the focus of the standard is aligned with the image display system. Thi...
Source: Der Radiologe - September 27, 2013 Category: Radiology Authors: Simmler R Tags: Radiologe Source Type: research

[Bilateral parotid gland swelling caused by…? : When the diagnosis is written in the stars!]
[Bilateral parotid gland swelling caused by…? : When the diagnosis is written in the stars!] Radiologe. 2013 Sep 27; Authors: Stürzebecher K, Mertz K, Büttner F, Ullmer E PMID: 24068293 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - September 27, 2013 Category: Radiology Authors: Stürzebecher K, Mertz K, Büttner F, Ullmer E Tags: Radiologe Source Type: research

[Magnetic resonance imaging of the shoulder : Impingement and instability related abnormalities - update 2013.]
Abstract Magnetic resonance imaging (MRI) plays an important role in the diagnosis and differentiation of numerous shoulder abnormalities and chronic shoulder pain. Important indications for MRI are assessment of the rotator cuff and the labrocapsular complex. The assessment of the rotator cuff muscles is crucial. The value of MR arthrography is discussed. The potential benefit of MR arthrography is the accurate evaluation of subtle rotator cuff abnormalities, shoulder instability-related lesions and the assessment of pathological conditions of the long biceps tendon. The following article describes the most commo...
Source: Der Radiologe - September 27, 2013 Category: Radiology Authors: Zanetti M, Mamisch-Saupe N Tags: Radiologe Source Type: research

[Imaging following valve replacement.]
Abstract Patients who undergo heart valve replacement require lifelong cardiac follow-up care. Although the primary pathology of the patient is treated by valve replacement, the risk of postoperative complications and structural failure of the implanted device requires regular check-ups where imaging plays an important role. Immediately after surgery reference values regarding prosthetic and cardiac function for further check-ups are obtained. Transthoracic and transesophageal echocardiography are the imaging modalities of choice for standard examination and follow-up due to their availability and low costs. Howev...
Source: Der Radiologe - September 14, 2013 Category: Radiology Authors: Dabir D, Ucar EA, Nagel E Tags: Radiologe Source Type: research

[Minimally invasive pulmonary valve replacement in pediatric patients : Importance of imaging.]
Abstract CLINICAL/METHODICAL ISSUE: Right ventricular outflow tract (RVOT) dysfunction with pulmonary regurgitation or obstruction is a common postsurgical consequence in congenital heart disease. STANDARD RADIOLOGICAL METHODS: Magnetic resonance imaging (MRI) is widely accepted as standard method of imaging in congenital heart disease. It provides anatomical and functional information without radiation exposure and is therefore well suited for serial examinations. METHODICAL INNOVATIONS: Percutaneous pulmonary valve implantation (PPVI) has been shown to be a safe and effective treatment option for patie...
Source: Der Radiologe - September 14, 2013 Category: Radiology Authors: Bauner K, Kozlik-Feldmann R Tags: Radiologe Source Type: research

[Investigation techniques and importance of CT for diagnostics of cardiac valvular diseases.]
Abstract CLINICAL/METHODICAL ISSUE: Cardiac computed tomography (CT) is the first-line modality for coronary assessment. In addition valvular morphology and function can be evaluated. STANDARD RADIOLOGICAL METHODS: The method of choice for the evaluation of cardiac valves is echocardiography, followed by magnetic resonance imaging. METHODICAL INNOVATIONS: Recent technical improvements and advances in temporal resolution allow a detailed anatomical and functional evaluation of the cardiac valves. PERFORMANCE: Cardiac CT provides an excellent image quality of the aortic and mitral valve thus enabling ...
Source: Der Radiologe - September 5, 2013 Category: Radiology Authors: Gordic S, Alkadhi H Tags: Radiologe Source Type: research

[Interstitial lung diseases (ILD) in smokers : Spectrum in high resolution computed tomography (HRCT).]
Abstract Smoking is a known risk factor for the development of various interstitial lung diseases, e.g. respiratory bronchiolitis, respiratory bronchiolitis-associated interstitial lung disease, desquamative interstitial pneumonia, and pulmonary Langerhans cell histiocytosis. These disorders frequently present with overlapping clinical pathological features and in addition may coexist within the same patient. In the clinical routine the differential diagnosis may be challenging or even impossible; therefore, smoking-related lung diseases are considered as part of the same disease spectrum representing different de...
Source: Der Radiologe - September 4, 2013 Category: Radiology Authors: Marten-Engelke K Tags: Radiologe Source Type: research

[Cost efficiency analysis of CT coronary angiography for exclusion of significant coronary artery stenosis : Comparison with conventional invasive coronary angiography before cardiac surgery.]
PMID: 23975148 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - August 25, 2013 Category: Radiology Authors: Weber MA Tags: Radiologe Source Type: research

[Controlling instruments in radiology.]
Abstract Due to the rising costs and competitive pressures radiological clinics and practices are now facing, controlling instruments are gaining importance in the optimization of structures and processes of the various diagnostic examinations and interventional procedures. It will be shown how the use of selected controlling instruments can secure and improve the performance of radiological facilities. A definition of the concept of controlling will be provided. It will be shown which controlling instruments can be applied in radiological departments and practices. As an example, two of the controlling instrument...
Source: Der Radiologe - August 15, 2013 Category: Radiology Authors: Maurer M Tags: Radiologe Source Type: research

[Screening for everyone?]
PMID: 23942603 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - August 14, 2013 Category: Radiology Authors: Delorme S Tags: Radiologe Source Type: research

[Limits of mammography screening : Current controversies and perspectives.]
Abstract In recent years overdiagnosis has been claimed to be a major disadvantage of breast cancer screening. Studies estimating overdiagnosis have shown substantial discrepancies due to differences in the underlying epidemiological methods. Valid estimates based on studies with sufficient follow-up have shown a proportion of overdiagnosis of much less than 10 % of cancer detected by screening. Special attention should be given to intraductal carcinoma in situ as it is a precursor lesion of invasive cancer but the progression potential is poorly understood and it is currently treated similarly to invasive ...
Source: Der Radiologe - August 14, 2013 Category: Radiology Authors: Hellerhoff K Tags: Radiologe Source Type: research

[Screening for colorectal cancer : Even with virtual colography?]
Abstract Colorectal cancer (CRC) is responsible for 27,000 deaths and 65,000 new cancers in Germany each year, although this should be unnecessary as CRC is preventable because it is possible to remove the precursors, harmless polyps and adenomas. However, only 2.5 % of people in health insurance make use of screening colonoscopy annually so that it becomes necessary to check out other screening tests. The most commonly used test is the Guaiak-based test for fecal occult blood (gFOBT) which is highly specific but not very sensitive (only approximately 10 %). New immunological stool tests are more sen...
Source: Der Radiologe - August 11, 2013 Category: Radiology Authors: Layer G, Riemann JF Tags: Radiologe Source Type: research

[Turnaround time for reporting results of radiological examinations in intensive care unit patients : An internal quality control.]
CONCLUSIONS: During the 3-year observation period a reduction in turnaround times for reporting results and release of finalized reports could be observed, despite an increase in the total number of cases. PMID: 23933637 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - August 11, 2013 Category: Radiology Authors: Albrecht L, Busse R, Tepe H, Poschmann R, Teichgräber U, Hamm B, de Bucourt M Tags: Radiologe Source Type: research

[Osteolytic lesion of the ilium.]
PMID: 23831936 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - July 7, 2013 Category: Radiology Authors: Rehm J, Renker EK, Mechtersheimer G, Weber MA Tags: Radiologe Source Type: research

[Neuroanatomy.]
Abstract PMID: 23824169 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - July 5, 2013 Category: Radiology Authors: Reith W Tags: Radiologe Source Type: research

[Schoolchild with bronchitis and surprising diagnosis : Or what an X-ray image can still contribute.]
Abstract PMID: 23820567 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - July 4, 2013 Category: Radiology Authors: Ritter L, Miehe U, Katscher G, Hirsch W, Prenzel F Tags: Radiologe Source Type: research

[Hans Holfelder and the Waffen SS Roentgensturmbann.]
g; D Abstract PMID: 23820568 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - July 4, 2013 Category: Radiology Authors: Schmidt M, Groß D Tags: Radiologe Source Type: research

[Functional MRI of speech.]
h W Abstract Speech is a multifactorial term. In relationship with our central organ, speech is a communication medium which in a complex manner includes the production and perception of verbal information. Even within this limitation, imaging exploration of the neuronal basis of verbal communication offers an extensive investigative field which can only be presented in this article as highlights. The main focus is on the technical hurdles of investigations into speech production using functional magnetic resonance imaging (fMRI) and solution options will be presented. The difficulties contained in this aspect are...
Source: Der Radiologe - July 3, 2013 Category: Radiology Authors: Krick CM, Backens M, Pützer M, Reith W Tags: Radiologe Source Type: research

[On the diversity of applications for ultrasound.]
Abstract PMID: 23818014 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - July 3, 2013 Category: Radiology Authors: Frentzel-Beyme B, van Kaick G Tags: Radiologe Source Type: research

[Sonographic screening of basilar arteries reduces the risk of sudden infant death.]
Abstract Sudden infant death syndrome (SIDS) is the most frequent cause of death in the first year of life. The causes of SIDS remain unclear although multiple theories have been published in recent decades. However, some important risk factors associated with SIDS, such as prone sleeping have been validated. Over 85 % of all SIDS victims were found in a prone position but it is unclear why the prone sleeping position is more dangerous than the supine sleeping position. A possible cause of SIDS is hypoperfusion of the brain stem during head rotation. Some infants show compression of the vertebral arteries a...
Source: Der Radiologe - June 28, 2013 Category: Radiology Authors: Deeg KH, Reisig A Tags: Radiologe Source Type: research

[Female patient with depressive psychosis and visual disturbances.]
Abstract PMID: 23793452 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - June 22, 2013 Category: Radiology Authors: Neubacher M, Reuter M, Hauenstein K Tags: Radiologe Source Type: research

[Computed tomography screening for lung cancer.]
Abstract Lung cancer is by far the most frequent type of cancer worldwide and in particular the most frequent cause of cancer deaths. The most important risk factor is smoking and abstinence is therefore the most effective primary prevention for lung cancer. As even ex-smokers live under elevated lung cancer risk for years and additionally not all smokers are willing to stop smoking or attempts to stop fail, early detection by low-dose multislice computed tomography (MSCT) is a realistic option for secondary prevention. First results from the USA appear supportive for this view but important issues still remain un...
Source: Der Radiologe - June 21, 2013 Category: Radiology Authors: Becker N Tags: Radiologe Source Type: research

[Functional MRI of the hearing center.]
This article describes the technical conditions which, nevertheless, allow the auditory capabilities to be tested. Furthermore, every switch point of the auditory pathway and the cortical areas involved, which are technically accessible in an investigation of the sense of hearing are pictorially described. PMID: 23784617 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - June 21, 2013 Category: Radiology Authors: Krick CM, Backens M, Reith W Tags: Radiologe Source Type: research

[Functional neuroanatomy: sensorimotor system.]
Abstract The sensorimotor flow of information can be divided in three steps: perception, processing and reaction. Environmental impulses are conducted through receptors to the central nervous system (CNS). The impulses arriving in the somatosensory cortex are processed through complex interactions between sensory and motor areas. The motor action in response to the environmental changes is transferred from the motor cortex via the pyramidal tract, spinal tracts and motor neurons to the respective muscles. With functional magnetic resonance imaging (fMRI) it is possible to assess somatosensory and motor activation ...
Source: Der Radiologe - June 21, 2013 Category: Radiology Authors: Garcia M, Stippich C Tags: Radiologe Source Type: research

[Neuroimaging of color and spatial perception.]
h W Abstract Spatial orientation and perception of distance are anchored in the visual system in the same way as color perception. However, different centers with different levels of expression are involved in the various aspects of visual processing starting from the primary visual cortex in the occipital lobes. In this article the investigation methods and designs are described by which the various functions within the visual system can be assigned to the appropriate specialized center in the parietal and temporal lobes using functional magnetic resonance imaging (fMRI). PMID: 23778501 [PubMed - as supplied...
Source: Der Radiologe - June 20, 2013 Category: Radiology Authors: Krick CM, Backens M, Käsmann-Kellner B, Reith W Tags: Radiologe Source Type: research

[Image post-processing, part 1: visualization and segmentation.]
Abstract Image post-processing of large thin-slice radiological datasets relies on increasingly diverse and complex algorithms. Basic techniques of visualization, segmentation and data analysis will be presented in this article focusing on methods which are integrated into the majority of current viewing and reporting tools, such as multiplanar reformation, volume rendering or basic segmentation. Subsequently, more complex methods and a possible role of post-processing algorithms in the radiology of the future will be discussed. PMID: 23754573 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - June 12, 2013 Category: Radiology Authors: Baumann T, Langer M Tags: Radiologe Source Type: research

[EVAR - The new standard.]
Abstract PMID: 23719753 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - May 31, 2013 Category: Radiology Authors: Helmberger T Tags: Radiologe Source Type: research

[Our new Superman - stent of steel : The hero in metal meshwork.]
IQ Abstract PMID: 23719754 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - May 31, 2013 Category: Radiology Authors: Kühn AL, Grunwald IQ Tags: Radiologe Source Type: research

[Interventional endovascular therapy of infrarenal abdominal aortic aneurysm.]
Abstract The catheter-based interventional therapy (endovascular aortic repair EVAR) of abdominal aortic aneurysms (AAA) has gained an established place in the spectrum of therapeutic options. The procedure is characterized by low peri-interventional morbidity and mortality. Multislice computed tomography (CT) has a dominant role in defining the correct indications and in selecting an appropriate stent graft prior to the intervention. The rate of acute conversions could be reduced from 2.9 % to 0 % in our own elective patient population since 2010. In our vascular centre the proportion of patients trea...
Source: Der Radiologe - May 23, 2013 Category: Radiology Authors: Gross-Fengels W, Daum H, Siemens P, Heuser L, Wagenhofer KU Tags: Radiologe Source Type: research

[Reconstruction of the aortic bifurcation : Endovascular aortic repair (EVAR) and alternatives.]
n K Abstract CLINICAL ISSUE: Diseases of the aortic bifurcation, whether stenotic or dilating, are mostly a manifestation of arteriosclerosis. If only stenosis is present aortic bifurcation disease is equivalent to a certain form of peripheral arterial occlusive disease (PAOD) characterized by the specific anatomical location. Aneurysmal disease and PAOD of the aortic bifurcation may occur together and men older than 60 years are particularly affected. The main symptom of aortic bifurcation PAOD is bilateral claudication whereas aneurysmal disease of the aortic bifurcation is frequently asymptomatic. STANDARD...
Source: Der Radiologe - May 23, 2013 Category: Radiology Authors: Schürmann K Tags: Radiologe Source Type: research

[Endovascular treatment of thoracic aneurisms : Indications, techniques and results.]
RT Abstract CLINICAL ISSUE OF THORACIC ANEURYSMS: Aneurysms are among the most common diseases affecting the thoracic aorta, with a continuous increase in incidence over the recent decades. The main cause of thoracic aneurysms is atherosclerosis, which, due to the frequent lack of major symptoms and the potentially lethal complications such as ruptured aortic aneurysm, remains a challenge in clinical practice. STANDARD RADIOLOGICAL METHODS: CT angiography remains the imaging method of choice for acute aortic aneurysms, with MR angiography being increasingly used for follow-up imaging. THRESHOLD FOR TREATMENT: In ...
Source: Der Radiologe - May 18, 2013 Category: Radiology Authors: Hofmockel T, Plodeck V, Grützmann R, Weiss N, Laniado M, Hoffmann RT Tags: Radiologe Source Type: research

[Endoleaks - when is treatment necessary?]
Abstract Currently the majority of infrarenal abdominal aortic aneurysm repairs are endovascular procedures using a stent graft. This method continues to be questioned due to an up to 50 % incidence of endoleaks, i.e. the postinterventional persistence of blood flow outside the graft and within the aneurysm sac, potentially bearing the risk of a further increase of the aneurysm diameter and aneurysm rupture. Currently a total of five different endoleak types can be distinguished. Multiphase computed tomography (CT) is the standard imaging method for the detection and classification of endoleaks or alternati...
Source: Der Radiologe - May 18, 2013 Category: Radiology Authors: Dudeck O Tags: Radiologe Source Type: research

[Do we need hybrid operating theaters? : A critical appraisal.]
Abstract CLINICAL ISSUE: Infrastructural improvements with a combination of interventional and open surgical procedures. STANDARD TREATMENT: Separate performance of interventional and open surgical procedures. TREATMENT INNOVATIONS: Implementation of hybrid operating rooms. DIAGNOSTIC WORK-UP: Intraoperative high-quality digital subtraction angiography. PERFORMANCE: Best hygienic conditions Intraoperative improved image quality Improved patient management Increased patient safety Broadening of indications ACHIEVEMENTS: Major improvement from a medical standpoint Different implications from a management perspective...
Source: Der Radiologe - May 18, 2013 Category: Radiology Authors: Wohlgemuth WA Tags: Radiologe Source Type: research

[Intramammary lesion in a 23-year-old female patient.]
MH Abstract PMID: 23681514 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - May 18, 2013 Category: Radiology Authors: Kalmar PI, Oswald S, Fuchsjäger MH Tags: Radiologe Source Type: research

[Indications for contrast media.]
Abstract PMID: 23681515 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - May 18, 2013 Category: Radiology Authors: Heverhagen JT Tags: Radiologe Source Type: research

[Legal framework of data protection : Current requirements in Germany and requirements in planned European Union regulations].
e B Abstract The federal system in Germany necessitates that in addition to federal laws, country and church-specific legislations must also be considered during the evaluation of relevant legal stipulations concerning data protection. Furthermore, there are also special legal regulations for hospitals in almost every federal state which are governed by the principle of subsidiarity: special legal regulations are to be preferentially used, so that findings from one federal state are difficult to transfer to another federal state.Patient data may only be used and processed without legal regulations with informed co...
Source: Der Radiologe - May 1, 2013 Category: Radiology Authors: Schütze B Tags: Radiologe Source Type: research

[Imaging of musculoskeletal tumors : What are new MR techniques capable of and what is included in an optimal MR protocol?].
PMID: 23588895 [PubMed - in process] (Source: Der Radiologe)
Source: Der Radiologe - May 1, 2013 Category: Radiology Authors: Weber MA Tags: Radiologe Source Type: research

[Problems and chances of high field magnetic resonance imaging].
Abstract CLINICAL/METHODICAL ISSUE: The spatial, temporal and spectral resolution in magnetic resonance imaging (MRI) is in many cases currently not sufficient to detect submillimeter lesions or to image the dynamics of the beating heart. STANDARD RADIOLOGICAL METHODS: At present MRI systems at 1.5 T and 3 T are the standard units for clinical imaging. METHODICAL INNOVATIONS: The use of ultrahigh magnetic fields of 7 T and higher increases the signal-to-noise ratio, which holds promise for a significant improvement of the spatial and/or temporal resolution as well as for new contrast mechanisms. PER...
Source: Der Radiologe - May 1, 2013 Category: Radiology Authors: Ladd ME, Bock M Tags: Radiologe Source Type: research

[Lower abdominal space-occupying lesion with displaced roof of the bladder].
h M PMID: 23595100 [PubMed - in process] (Source: Der Radiologe)
Source: Der Radiologe - May 1, 2013 Category: Radiology Authors: Hesse N, Füllhase C, Wengenroth M Tags: Radiologe Source Type: research

[Neurofunctional MRI at high magnetic fields].
Abstract CLINICAL/METHODICAL ISSUE: Functional magnetic resonance imaging (fMRI) examinations are limited in their sensitivity due to the low activation-induced signal change. Within short tolerable scan times the spatial resolution is thus limited. STANDARD RADIOLOGICAL METHODS: fMRI is a reliable tool in neuroscience as well as for clinical applications such as presurgical mapping of brain function. METHODICAL INNOVATIONS: The fMRI sensitivity improves greatly (more than linearly) with increasing magnetic field strengths. For many years this was the main driving force in the push towards higher field strengths, ...
Source: Der Radiologe - May 1, 2013 Category: Radiology Authors: Speck O, Turner R Tags: Radiologe Source Type: research

[Application of ultrahigh-field MRI in neuro-oncology].
Abstract The introduction of high-field magnetic resonance imaging (MRI) into neuro-oncological imaging allows improved visualization of tumor structures even in the field of T1 and T2-weighted imaging. Susceptibility-weighted imaging (SWI) and time of flight (TOF) angiography in particular greatly benefit from the high field strength. The visualization of tumor vasculature in MRI, which was made possible by high-field technology can potentially be applied to monitoring antiangiogenic therapy. Cerebral metastases can potentially be discovered earlier using high-field technology. Furthermore, high-field technology ...
Source: Der Radiologe - May 1, 2013 Category: Radiology Authors: Radbruch A, Schlemmer HP Tags: Radiologe Source Type: research

[Cardiovascular ultrahigh field magnetic resonance imaging : Challenges, technical solutions and opportunities].
Abstract CLINICAL/METHODICAL ISSUE: This involves high spatial resolution cardiac imaging with ultrahigh magnetic fields (7 T) and clinically acceptable image quality. STANDARD RADIOLOGICAL METHODS: Cardiovascular magnetic resonance imaging (MRI) at a field strength of 1.5 T using a spatial resolution of (2 × 2 × 6-8) mm(3). METHODICAL INNOVATIONS: Cardiac MRI at ultrahigh field strength makes use of multitransmit/receive radiofrequency (RF) technology and development of novel technology that utilizes the traits of ultrahigh field MRI. PERFORMANCE: Enhanced sp...
Source: Der Radiologe - May 1, 2013 Category: Radiology Authors: Niendorf T, Schulz-Menger J Tags: Radiologe Source Type: research

[Magnetic resonance imaging with high field strengths: a lot helps a lot?].
PMID: 23680822 [PubMed - in process] (Source: Der Radiologe)
Source: Der Radiologe - May 1, 2013 Category: Radiology Authors: Delorme S, Bock M Tags: Radiologe Source Type: research

[In Process Citation].
PMID: 23680823 [PubMed - in process] (Source: Der Radiologe)
Source: Der Radiologe - May 1, 2013 Category: Radiology Authors: Reimer P, Vosshenrich R Tags: Radiologe Source Type: research

[Working in the magnetic field of ultrahigh field MRI].
Abstract Development of magnetic resonance imaging (MRI) device technology continues to increase the static magnetic flux densities applied and consequently leads to considerably increased occupational exposure. This has already made it necessary to review limits of occupational exposure and to postpone European legal regulations for occupational exposure to electromagnetic fields. This raises the question whether and if so which adverse health effects and health risks might be associated with occupational exposure to MRI ultra-high static magnetic fields. Based on a survey on interaction mechanisms recommendation...
Source: Der Radiologe - May 1, 2013 Category: Radiology Authors: Leitgeb N, Gombotz H Tags: Radiologe Source Type: research

[Contrast in static images in clinical magnetic resonance imaging : Part 1: Contrast properties of tissue].
Abstract In comparison to roentgen-based radiological examination techniques, magnetic resonance imaging (MRI) provides a wide variety of tissue contrast. This can be utilized for better detection and characterization of pathological findings. The basis of image contrast in MRI is the chemical and physical properties of the hydrogen atoms in tissue, in particular in their chemical bonds in water and lipid molecules and in the environment in which the hydrogen-containing molecules are contained. This environment is mainly determined by the composition of substances, viscosity and temperature as well as the microsco...
Source: Der Radiologe - May 1, 2013 Category: Radiology Authors: Schick F Tags: Radiologe Source Type: research