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Strobl FF, Brechtel K, Schmehl J, Zeller T, Reiser MF, Claussen CD, Tepe G. Twelve-month results of a randomized trial comparing mono with dual antiplatelet therapy in endovascularly treated patients with peripheral artery disease. J Endovasc Ther 2014; 20:699-706. [PMID: 24093324 DOI: 10.1583/13-4275mr.1] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
PURPOSE To present the 12-month results of a trial investigating the effects of dual antiplatelet therapy on target lesion revascularization (TLR) after balloon angioplasty ± stenting in the femoropopliteal segment. METHODS A prospective, randomized, single-center, double-blinded and placebo-controlled clinical trial randomly assigned 40 patients to receive pre- and postinterventional therapy with aspirin and clopidogrel. Another 40 patients received the same doses of aspirin and placebo instead of clopidogrel. Clopidogrel and placebo were stopped after 6 months, and patients remained on aspirin only. At 12 months after the intervention, 36 clopidogrel patients and 37 placebo patients were reevaluated. RESULTS At 6 months, clopidogrel patients had significantly lower rates of TLR compared to placebo patients [2 (5%) vs. 8 (20%), p=0.04]. After stopping clopidogrel/placebo after 6 months, there was no significant difference in TLR at 12 months after treatment [9 (25%) clopidogrel vs. 12 (32.4%) placebo, p=0.35]. Mortality was 0 vs. 1 in the placebo group at 6 months (p=0.32) and 0 vs. 3 at 12 months (p=0.08). CONCLUSION In contrast to the first report of a reduction in the TLR at 6 months, this advantage of dual antiplatelet therapy does not persist after stopping clopidogrel. Prolonged dual therapy (>6 months) should be considered in patients who are at high risk for restenosis.
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Ertl-Wagner B, Hoffmann RT, Brüning R, Dichgans M, Reiser MF. Supraaortale Gefäßdiagnostik mit dem 16-Zeilen-Multidetektor-Spiral-CT. Untersuchungsprotokoll und erste Erfahrungen. Radiologe 2014; 42:728-32. [PMID: 12244474 DOI: 10.1007/s00117-002-0786-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
PURPOSE The newly developed 16-slice multi detector row computed tomography (MDCT) allows for isotropic imaging at rotation times under 500 ms. We aim to describe our first experiences with this novel technology in the diagnostic imaging of the craniocervical vascular system. METHODS The craniocervical vascular system of 8 consecutive patients was examined with a standardized protocol with the new 16-slice MDCT. The volume covered included the carotid arteries from their origin at the aortic arch and the intracranial arterial and venous vessels in their entirety. Homogeneity of contrast, contrast-to-parenchyma ratios, image quality and radiation doses were assessed. RESULTS A homogeneous vessel-to-parenchyma ratio was reached in the carotids as well as in the intracranial arterial and venous vessels. Image quality was rated as excellent in all patients. The estimated mean effective radiation dose amounted to 2.31 mSv +/-0.57, the mean dose length product to 608 mGy*cm +/-151. CONCLUSION The newly developed 16-slice MDCT technology appears to be a promising tool in the diagnostic assessment of the cervicocranial vessels.
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Herzog P, Jakobs TF, Wintersperger BJ, Nikolaou K, Becker CR, Reiser MF. Strahlendosis und Möglichkeiten zur Dosisreduktion in der Mehrschicht-CT. Radiologe 2014; 42:691-6. [PMID: 12244469 DOI: 10.1007/s00117-002-0799-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Since its introduction a few years ago, multidetector row CT (MDCT) has become a widely used diagnostic procedure and has been proven to be a valuable tool for various indications. A major issue using this new modality is the inherent risk of applying increased radiation exposure, when compared to single-slice CT or other imaging modalities.However, MDCT offers some valuable options to save radiation exposure, such as choosing optimized exposure parameters or its superior dose efficiency in comparison to single-slice CT. Multi-phasic examinations should be restricted to indications where definitely necessary. Modern scanners offer intelligent tools for further reduction of radiation dose, such as ECG- or bodyshape-based realtime dose modulation. A new field of applications is the low-dose CT for early detection of diseases. While acquiring thin slices with high spatial resolution, the dose can be reduced to similar values as in conventional radiography, especially when examining under high-contrast conditions. Using all these various options available, radiation exposure can sometimes even be lower than using a conventional single-slice helical CT.
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Wintersperger BJ, Helmberger TK, Herzog P, Jakobs TF, Waggershauser T, Becker CR, Reiser MF. Hochaufgelöste abdominelle Übersichtsangiographie mit einem 16-Detektorzeilen-CT-System Erste Erfahrungen. Radiologe 2014; 42:722-7. [PMID: 12244473 DOI: 10.1007/s00117-002-0801-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
PURPOSE Purpose of this study was the implementation of a new abdominal CT angiography protocol on a 16 detector-row CT scanner and the comparison to selective catheter angiography. METHODS 76 patients with various vascular disorders underwent abdominal CT angiography on a recently developed 16 detector-row CT scanner using submillimeter slice collimation (16 x 0.75 mm). Results were compared with mesenteric and/or hepatic angiography in 17 patients performed during tumor embolization. Opacification was provided using individually tailored contrast application with a test bolus setting. To evaluate the contrast injection protocol density measurements within the vessel lumen were performed. RESULTS Diagnostic image quality was achieved in all patients with angiographic comparison (n = 17). Within the hepatic and mesenteric vasculature up to 4th generation vessels could be identified. Compared to selective angiography CT angiography provided equivalent morphologic information up to the detectable vessel generation. With the applied contrast application regimen there were no significant differences in vessel enhancement along the abdominal aorta and iliac arteries. CONCLUSION 16 detector-row CT enables whole abdominal angiographic studies with submillimeter resolution in a single breath-hold. The improved spatial resolution enables for high quality 3D visualization. Compared to invasive angiography, 16 detector-row CT reveals equivalent morphologic information.
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Jakobs TF, Becker CR, Wintersperger BJ, Herzog P, Ohnesorge B, Flohr T, Knez A, Reiser MF. CT-Angiographie der Koronararterien mit einem 16-Mehrzeilen-Spiral-CT Einfluss der räumlichen Auflösung auf die Bildqualität. Radiologe 2014; 42:733-8. [PMID: 12244475 DOI: 10.1007/s00117-002-0787-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
PURPOSE To evaluate image quality of coronary CT angiography with retrospectively ECG-gated 16 multi-slice spiral CT (MSCT), reconstructed with 0.75 mm slice thickness for optimal spatial resolution and with 1.3 mm slice thickness, to produce spatial resolution comparable to a 4-MSCT. MATERIALS AND METHODS Ten patients underwent coronary CT angiography with a 16-MSCT (Siemens Sensation 16, Forchheim, Germany) with 0.75 mm detector collimation. Raw helical CT data were retrospectively reconstructed using two different settings. Setting A: B20f smooth kernel, axial MPR with 1.3 mm slice thickness and 0.7 mm increment. Setting B: B35f "HeartView" medium-smooth kernel, 0.75 mm slice thickness, 0.5 mm increment. In the axial slices two regions of interest (ROIs) were placed in the area of the aortic root (AR) and more caudal in the area of the left ventricle (LV). Image noise was determined by the standard deviation of the CT numbers.Two readers determined visibility of coronary arteries by standardized maximum intensity projections (MIP) post-processing in left, right anterior and left anterior oblique projection plane from setting A and B. Each projection was rated on a five point rating scale concerning plaque delineation. Points determined for each data set were summed up and used for comparison. RESULTS No significant difference between the CT-numbers was found for setting A and B (A: 283.0 in AR/295.9 in LV and B: 282,9 in AR/297.2 in LV; p >0.2). However, the image noise was significantly different for setting A and B (A: 4.46 in AR/1.67 in LV and B: 8.16 in AR/7.38 in LV; p <0.01). Better delineation of the coronary arteries and atherosclerotic lesions could be achieved from MIP projections in setting B compared to setting A. CONCLUSION Higher image noise is present in coronary 16-MSCT with thin-slice reconstruction compared to simulated 4-MSCT. However the MIP-reconstructions benefit most from the higher spatial resolution.
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Meinel FG, Fischer J, Pomschar A, Wöhrle N, Koerte IK, Steffinger D, Laubender RP, Muacevic A, Reiser MF, Alperin N, Ertl-Wagner B. MRI evidence for preserved regulation of intracranial pressure in patients with cerebral arteriovenous malformations. Eur J Radiol 2014; 83:1442-7. [PMID: 24932847 DOI: 10.1016/j.ejrad.2014.05.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Accepted: 05/06/2014] [Indexed: 10/25/2022]
Abstract
PURPOSE The purpose of this study was to investigate intracranial pressure and associated hemo- and hydrodynamic parameters in patients with cerebral arteriovenous malformations AVMs. METHODS Thirty consecutive patients with arteriovenous malformations (median age 38.7 years, 27/30 previously treated with radiosurgery) and 30 age- and gender-matched healthy controls were investigated on a 3.0T MR scanner. Nidus volume was quantified on dynamic MR angiography. Total arterial cerebral blood flow (tCBF), venous outflow as well as aqueductal and craniospinal stroke volumes were obtained using velocity-encoded cine-phase contrast MRI. Intracranial volume change during the cardiac cycle was calculated and intracranial pressure (ICP) was derived from systolic intracranial volume change (ICVC) and pulse pressure gradient. RESULTS TCBF was significantly higher in AVM patients as compared to healthy controls (median 799 vs. 692 mL/min, p=0.007). There was a trend for venous flow to be increased in both the ipsilateral internal jugular vein (IJV, 282 vs. 225 mL/min, p=0.16), and in the contralateral IJV (322 vs. 285 mL/min, p=0.09), but not in secondary veins. There was no significant difference in median ICP between AVM patients and control subjects (6.9 vs. 8.6 mmHg, p=0.30) and ICP did not correlate with nidus volume in AVM patients (ρ=-0.06, p=0.74). There was a significant positive correlation between tCBF and craniospinal CSF stroke volume (ρ=0.69, p=0.02). CONCLUSIONS The elevated cerebral blood flow in patients with AVMs is drained through an increased flow in IJVs but not secondary veins. ICP is maintained within ranges of normal and does not correlate with nidus volume.
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Riester A, Fischer E, Degenhart C, Reiser MF, Bidlingmaier M, Beuschlein F, Reincke M, Quinkler M. Age below 40 or a recently proposed clinical prediction score cannot bypass adrenal venous sampling in primary aldosteronism. J Clin Endocrinol Metab 2014; 99:E1035-9. [PMID: 24601689 DOI: 10.1210/jc.2013-3789] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
CONTEXT Adrenal venous sampling (AVS) is used to distinguish bilateral from unilateral primary aldosteronism (PA). Due to its limited availability, clinical prediction scores have been proposed to diagnose unilateral disease without AVS. OBJECTIVE Our goal was to test 2 recently proposed predictors of unilateral PA: 1) a clinical prediction score using imaging, serum potassium, and glomerular filtration rate and 2) the combination of visible unilateral adenoma on imaging and age <40 years. DESIGN AND SETTING We used the data of all patients with PA of the prospective German Conn's Registry treated in Munich and Berlin since 2008. PATIENTS AND INTERVENTION Of 205 patients with PA, 194 had a successful AVS and were included. MAIN OUTCOME MEASURES Parameters were compared between patients with lateralized and nonlateralized AVS. Specificity and sensitivity of the proposed predictors were calculated. RESULTS A total of 130 patients (67%) had unilateral PA according to AVS. Patients with unilateral PA showed a significantly lower estimated glomerular filtration rate compared with patients with bilateral disease (P < .05). The cohorts differed significantly in potassium supplementation, serum potassium, baseline and post-saline plasma aldosterone, baseline aldosterone to renin ratio, and adenoma in imaging. The proposed prediction score had a sensitivity of 46% (58 of 127) and a specificity of 80% (53 of 66). In patients below 40 years (n = 28), the prediction score achieved a specificity of 100%; however, relying only on imaging in this young cohort, the specificity dropped to 83%. CONCLUSIONS The suggested prediction score has high accuracy only in young patients but cannot substitute for AVS in the elderly.
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Yaroshenko A, Hellbach K, Bech M, Grandl S, Reiser MF, Pfeiffer F, Meinel FG. Grating-based X-ray dark-field imaging: a new paradigm in radiography. CURRENT RADIOLOGY REPORTS 2014. [DOI: 10.1007/s40134-014-0057-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Mueller S, Costa A, Keeser D, Pogarell O, Berman A, Coates U, Reiser MF, Riedel M, Möller HJ, Ettinger U, Meindl T. The effects of methylphenidate on whole brain intrinsic functional connectivity. Hum Brain Mapp 2014; 35:5379-88. [PMID: 24862742 DOI: 10.1002/hbm.22557] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 04/25/2014] [Accepted: 05/07/2014] [Indexed: 12/29/2022] Open
Abstract
Methylphenidate (MPH) is an indirect dopaminergic and noradrenergic agonist that is used to treat attention deficit hyperactivity disorder and that has shown therapeutic potential in neuropsychiatric diseases such as depression, dementia, and Parkinson's disease. While effects of MPH on task-induced brain activation have been investigated, little is known about how MPH influences the resting brain. To investigate the effects of 40 mg of oral MPH on intrinsic functional connectivity, we used resting state fMRI in 54 healthy male subjects in a double-blind, randomized, placebo-controlled study. Functional connectivity analysis employing ICA revealed seven resting state networks (RSN) of interest. Connectivity strength between the dorsal attention network and the thalamus was increased after MPH intake. Other RSN located in association cortex areas, such as the left and right frontoparietal networks and the executive control network, showed MPH-induced connectivity increase to sensory-motor and visual cortex regions and connectivity decrease to cortical and subcortical components of cortico-striato-thalamo-cortical circuits (CST). RSN located in sensory-motor cortex areas showed the opposite pattern with MPH-induced connectivity increase to CST components and connectivity decrease to sensory-motor and visual cortex regions. Our results provide evidence that MPH does not only alter intrinsic connectivity between brain areas involved in sustained attention, but that it also induces significant changes in the cortico-cortical and cortico-subcortical connectivity of many other cognitive and sensory-motor RSN.
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Thieme SF, Meinel FG, Graef A, Helck AD, Reiser MF, Johnson TRC. Dual-energy CT pulmonary angiography in patients with suspected pulmonary embolism: value for the detection and quantification of pulmonary venous congestion. Br J Radiol 2014; 87:20140079. [PMID: 24827378 DOI: 10.1259/bjr.20140079] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE To evaluate if vascular and pulmonary parenchymal enhancement values in dual-energy (DE) CT pulmonary angiography (CTPA) can suggest the diagnosis of pulmonary congestion. METHODS DE-CTPA images of 90 out of 1321 patients negative for pulmonary embolism showed signs of congestive heart failure. We measured DE-derived pulmonary parenchymal [perfused blood volume (PBV)], pulmonary artery (PA) and left atrium (LA) enhancement values in these patients and in 142 control patients. Enhancement values were compared between the populations and correlated with serum values of B-type natriuretic peptide (BNP) and proBNP, where available. RESULTS No significant difference of PBV but significant differences of mean PA and LA enhancement and individual enhancement differences (PA - LA) were found between the populations. PA - LA was higher in patients with elevated BNP and proBNP and was positively correlated with these values. Receiver operating characteristic analysis revealed a moderate discriminatory power of the PA - LA difference for the presence of cardiac biomarker elevations. CONCLUSION PBV in DE-CTPA is not altered in patients with signs of congestive heart failure. However, differences in enhancement values in the pre- and post-pulmonary vessels were found in comparison with the control population. ADVANCES IN KNOWLEDGE Altered pulmonary vascular haemodynamics in pulmonary venous congestion are not reflected in dual-energy-derived PBV maps. In the diagnosis of left heart failure in patients with chest pain and dyspnoea, density measurements in the pulmonary artery and in the left atrium in CTPA images may be a helpful diagnostic tool.
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Do TD, Neurohr C, Michl M, Reiser MF, Zech CJ. An unusual case of primary hepatic lymphoma mimicking sarcoidosis in MRI. Acta Radiol Short Rep 2014; 3:2047981613493625. [PMID: 25298864 PMCID: PMC4184379 DOI: 10.1177/2047981613493625] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Accepted: 05/22/2013] [Indexed: 11/17/2022] Open
Abstract
Sarcoidosis is a granulomatous disease, in which liver affection is common, contrary to a primary hepatic lymphoma that is very rarely seen. On MRI both present with almost the same imaging features: hypointense in T1-weighted and hyperintense in T2-weighted sequences. Our patient with a histologically confirmed sarcoidosis in the lungs showed liver lesions that were similar to sarcoidosis manifestations of the liver. Due to size, progression and overlapping features with secondary malignant liver lesions within an interval of 5 months, a biopsy was conducted and confirmed a primary hepatic lymphoma with diffuse large b-cells. Thus, we would recommend performing a biopsy in ambiguous lesions with indistinguishable characteristics and progression within a short follow-up interval.
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Deák Z, Grimm JM, Mueck F, Geyer LL, Treitl M, Reiser MF, Wirth S. Endoleak and In-Stent Thrombus Detection with CT Angiography in a Thoracic Aortic Aneurysm Phantom at Different Tube Energies Using Filtered Back Projection and Iterative Algorithms. Radiology 2014; 271:574-84. [DOI: 10.1148/radiol.13130740] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Geyer LL, Körner M, Linsenmaier U, Wirth S, Reiser MF, Meindl T. The role of follow-up ultrasound and clinical parameters after abdominal MDCT in patients with multiple trauma. Acta Radiol 2014; 55:486-94. [PMID: 23969264 DOI: 10.1177/0284185113499559] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Beside its value during the initial trauma work-up (focused assessment with sonography for trauma), ultrasound (US) is recommended for early follow-up examinations of the abdomen in multiple injured patients. However, multidetector CT (MDCT) has proven to reliably diagnose traumatic lesions of abdominal organs, to depict their extent, and to assess their clinical relevance. PURPOSE To evaluate the diagnostic impact of follow-up US studies after MDCT of the abdomen and to identify possible clinical parameters indicating the need of a follow-up US. MATERIAL AND METHODS During a 30-month period, patients with suspected multiple trauma were allocated. Patients with admission to the ICU, an initial abdominal MDCT scan, and an US follow-up examination after 6 and 24 h were included. Two patient cohorts were defined: patients with normal abdominal MDCT (group 1), patients with trauma-related pathologic abdominal MDCT (group 2). In all patients, parameters indicating alteration of vital functions or hemorrhage within the first 24 h were obtained by reviewing the medical charts. RESULTS Forty-four of 193 patients were included: 24 were categorized in group 1 (mean age, 41.1 years; range, 21-90 years), 20 in group 2 (mean age, 36.6 years; range, 16-71 years). In group 1, US did not provide new information compared to emergency MDCT. In group 2, there were no contradictory 6- and 24-h follow-up US findings. In patients with positive MDCT findings and alterations of clinical parameters, US did not detect progression of a previously diagnosed pathology or any late manifestation of such a lesion. In none of the patients with negative abdominal MDCT and pathological clinical parameters US indicated an abdominal injury. CONCLUSION Routine US follow-up does not yield additional information after abdominal trauma. In patients with MDCT-proven organ lesions, follow-up MDCT should be considered if indicated by abnormal clinical and/or laboratory findings.
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Kammer N, Coppenrath E, Kooijman H, Reiser MF, Saam T. Whole Brain 3D-Black-Blood 3T-MRI: Eine Pilotstudie in der bildgebenden Diagnostik zerebraler Vaskulitiden. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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90
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Thierfelder K, Meimarakis G, Nikolaou K, Sommer WH, Kazmierczak PM, Schmitt P, Reiser MF, Theisen D. Nicht-kontrastverstärkte hochaufgelöste Quiescent Interval Single Shot 3-Tesla-MR-Angiografie bei Patienten mit fortgeschrittener peripherer arterieller Verschlusskrankheit. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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91
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Thierfelder K, Baumgarten LV, Löchelt AC, Meinel FG, Armbruster M, Beyer SE, Patzig M, Reiser MF, Sommer WH. Diagnostische Genauigkeit der CT-Ganzhirnperfusion in der Erkennung kleiner ischämischer Infarkte. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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92
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Kazmierczak P, Theisen D, Sommer W, Thierfelder K, Reiser MF, Nikolaou K. Verbesserte Detektion arteriell hypervaskularisierter Leberläsionen durch dynamische kontrastverstärkte T1w-3D-fs-GRE mit mehreren arteriellen Akquisitionsphasen. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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93
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Coppenrath E, Lenz O, Lummel N, Linn J, Bamberg F, Reiser MF, Dichgans M, Pfefferkorn T, Saam T. Klinische Wertigkeit der intraluminalen Thrombus-Kontrastmittelaufnahme bei Patienten mit spontaner cervicaler arterieller Dissektion. Eine in vivo Studie. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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94
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Kammer N, Lütke Daldrup C, Coppenrath E, Lechner A, Ferrari U, Reiser MF, Wirth S, Saam T, Hetterich H. Modifizierte mDixon Sequenzen im Vergleich mit H1-Spektroskopien zur Quantifizierung des Leberfettgehalts bei Patientinnen mit Gestationsdiabetes. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Strobl F, Hinzpeter R, Trumm CG, Waggershauser T, Staehler M, Reiser MF, Paprottka PM. Interventionelle Behandlung renaler Pseudoaneurysmen und AV-Fisteln nach partieller Nephrektomie: Technische und funktionelle Ergebnisse von allen behandelten Patienten eines 10-Jahres Zeitraums. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Weber K, Kanz KG, Reiser MF, Wirth S. Wertigkeit der CT unter Reanimation: Ergebnisse nach 27 Patienten. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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97
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Paprottka PM, Walter A, Haug A, Trumm C, Jakobs TF, Reiser MF, Zech C. Sicherheit der Radioembolisation mit 90Yttrium-Mikrosphären in Abhängigkeit vom prä-interventionellen Verschluss aberranter Gefäße. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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98
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Thierfelder K, Baumann AB, Baumgarten LV, Armbruster M, Janssen H, Reiser MF, Sommer WH. Hypoplastische Arteria vertebralis: Häufigkeit und Einfluss auf Charakteristika des cerebellären Blutflusses. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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99
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Kramer H, Kliewer MA, Pickhardt PJ, Hernando D, Chen GH, Reiser MF, Reeder SB. Genauigkeit der Leber-Fettquantifizierung mittels CT, MRT und Ultraschall: ein prospektiver Vergleich zur MR Spektroskopie. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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100
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Häußler SM, Strobl F, Paprottka P, Pieske O, Rubenbauer B, Jakobs T, Hoffmann RT, Reiser MF, Trumm CG. Technisches Outcome, Komplikationen und effektive Patientendosis der perkutanen, CT-fluoroskopisch gesteuerten Hohlschraubenosteosynthese bei instabilen Verletzungen des dorsalen Beckenrings. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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