Machine learning: from radiomics to discovery and routine.
h H Abstract Machine learning is rapidly gaining importance in radiology. It allows for the exploitation of patterns in imaging data and in patient records for a more accurate and precise quantification, diagnosis, and prognosis. Here, we outline the basics of machine learning relevant for radiology, and review the current state of the art, the limitations, and the challenges faced as these techniques become an important building block of precision medicine. Furthermore, we discuss the roles machine learning can play in clinical routine and research and predict how it might change the field of radiology. PMID...
Source: Der Radiologe - June 19, 2018 Category: Radiology Authors: Langs G, Röhrich S, Hofmanninger J, Prayer F, Pan J, Herold C, Prosch H Tags: Radiologe Source Type: research

[Disorders of migration and gyration].
Abstract Disorders of migration and gyration are a versatile group of pathologies that may cause epilepsy and/or neurodevelopmental delay. With the recent improvement of imaging methods, it is possible to detect these pathologies, not only on postnatal MRI but also in utero using fetal MRI. The use of MRI together with genetic tests and knowledge of the classification of these malformations makes early diagnosis possible. Furthermore, the exact diagnosis of disorders of gyration and migration will help ensure better treatment of symptomatic epilepsies as well as be of great help in counselling the parents if ...
Source: Der Radiologe - May 30, 2018 Category: Radiology Authors: Pogledic I Tags: Radiologe Source Type: research

[Chiari malformation].
Abstract Chiari malformation is one of the most common congenital anomalies involving both skeletal and neuronal structures. Magnetic Resonance Imaging(MRI) is nowadays considered the imaging technique of choice for the diagnosis of Chiari malformations. Computed Tomography (CT) scans may provide additional information about skeletal anomalies. PMID: 29845332 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - May 29, 2018 Category: Radiology Authors: Alexandrou M, Politi M, Papanagiotou P Tags: Radiologe Source Type: research

[Fetal magnetic resonance imaging].
Abstract CLINICAL ISSUE: The most important prenatal screening method for the detailed assessment of the fetus is ultrasound, which is often combined with colour-coded Doppler sonography. In case of sonographically diagnosed fetal pathologies or technical limitations of the ultrasound, supplementary diagnostics may be necessary. STANDARD RADIOLOGICAL METHODS: With fast MRI sequences, fetal MRI screening provides important additional information especially with regard to the most common congenital pathologies-central nervous system (CNS) pathologies (agenesis of the corpus callosum, ventriculomegaly, arachnoid...
Source: Der Radiologe - May 28, 2018 Category: Radiology Authors: Reith W, Haussmann A, Yilmaz U Tags: Radiologe Source Type: research

DAWN and DEFUSE-3 trials: is time still important?
CONCLUSION: Thrombectomy was shown to have high efficacy up to 24 h after suspected symptom onset; however, patient selection is very complex. Early detection of large-vessel occlusion is of utmost importance. The cooperation between existing neurovascular networks should be adapted according to these new findings. PMID: 29808241 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - May 28, 2018 Category: Radiology Authors: Ragoschke-Schumm A, Walter S Tags: Radiologe Source Type: research

[CEUS-application possibilities in the musculoskeletal system].
r C Abstract METHODICAL ISSUE: Contrast-enhanced ultrasound (CEUS) offers easily accessible visualization and quantification of the skeletal muscle microcirculation and other tissues in vivo and in real-time with almost no side effects. AIM: The aim of this review is to present the increasing number of musculoskeletal CEUS applications. METHODICAL INNOVATIONS/PERFORMANCE: CEUS applications regarding the musculoskeletal system include applications at bone and joints extending beyond the visualization of only the muscular microcirculation. Besides basic muscle physiology, impaired microcirculation in patie...
Source: Der Radiologe - May 28, 2018 Category: Radiology Authors: Jäschke M, Weber MA, Fischer C Tags: Radiologe Source Type: research

[Imaging of abdominal tumors in childhood and adolescence : Part  I: Background, hepatic, splenic and pancreatic tumors].
[Imaging of abdominal tumors in childhood and adolescence : Part I: Background, hepatic, splenic and pancreatic tumors]. Radiologe. 2018 May 24;: Authors: Renz DM, Mentzel HJ Abstract In comparison to adult patients, other specific entities of abdominal tumors occur in childhood and adolescence. These include malignant tumors originating from embryonic tissue, such as hepatoblastoma. Some of the abdominal tumors are already diagnosed prenatally or in neonates. Sonography functions as the primary radiological basic diagnostics of pediatric abdominal space-occupying lesions, if necessary supplement...
Source: Der Radiologe - May 24, 2018 Category: Radiology Authors: Renz DM, Mentzel HJ Tags: Radiologe Source Type: research

[Dandy-Walker malformation].
Abstract The Dandy-Walker malformation is the most frequent cerebral malformation. It is defined by hypoplasia and upward rotation of the vermis cerebelli, a cystic enlargement of the fourth ventricle and in total an enlarged posterior fossa with cranially shifted position of the lateral sinus, tentorium and torcula herophili. This malformation was first described by Dandy and Blackfan in 1914 then supplemented again by Taggart and Walker in 1942. The current description as Dandy-Walker malformation was introduced in 1954 by Bender. In addition to these classical findings, the Dandy-Walker malformation is cha...
Source: Der Radiologe - May 24, 2018 Category: Radiology Authors: Reith W, Haussmann A Tags: Radiologe Source Type: research

[Spina bifida].
s R Abstract Spina bifida is a congenital disorder with incomplete closure of the spinal column due to a bony vertebral defect. The term spina bifida literally means cleft spine and is used as a generic term of spinal dysraphism (Greek: Raphe = seam). It is a midline defect that occurs during the embryonic period. The insufficient closure of one or more vertebral arches is the result of an incomplete junction of the neural tube. Depending on the extent of the neural tube defect, various types of spina bifida can be differentiated. Closed spinal dysraphisms, also known as spin...
Source: Der Radiologe - May 24, 2018 Category: Radiology Authors: Mühl-Benninghaus R Tags: Radiologe Source Type: research

[Contrast-enhanced ultrasound: Tingling].
PMID: 29797042 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - May 24, 2018 Category: Radiology Authors: Delorme S, Clevert DA Tags: Radiologe Source Type: research

[Contrast-enhanced ultrasound (CEUS) and image fusion for procedures of liver interventions].
Abstract CLINICAL/METHODICAL ISSUE: Contrast-enhanced ultrasound (CEUS) is becoming increasingly important for the detection and characterization of malignant liver lesions and allows percutaneous treatment when surgery is not possible. Contrast-enhanced ultrasound image fusion with computed tomography (CT) and magnetic resonance imaging (MRI) opens up further options for the targeted investigation of a modified tumor treatment. METHODICAL INNOVATIONS: Ultrasound image fusion offers the potential for real-time imaging and can be combined with other cross-sectional imaging techniques as well as CEUS. ...
Source: Der Radiologe - May 24, 2018 Category: Radiology Authors: Jung EM, Clevert DA Tags: Radiologe Source Type: research

Abdominal lymphatic malformations.
CONCLUSION: In cystic abdominal masses in early childhood or young adults, abdominal LM must be taken into account by the radiologist. Newly defined entities in this spectrum of diseases are central conducting lymphatic anomaly (CCLA) and generalized lymphatic anomaly (GLA). PMID: 29796772 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - May 23, 2018 Category: Radiology Authors: Wohlgemuth WA, Brill R, Dendl LM, Stangl F, Stoevesandt D, Schreyer AG Tags: Radiologe Source Type: research

[Rathke cysts, craniopharyngioma, and colloid cysts : What are the differences between these pathologies?]
Abstract CLINICAL ISSUE: Headache is the most common symptom of colloid cysts, Rathke cysts, and craniopharyngioma due to their location in the midline, being extra-axial and typically presenting in the parasellar region. THERAPEUTIC PROBLEMS: Although these tumors are generally considered benign, each has its typical characteristics defined by its location and histology. These individual characteristics define whether surgery is necessary at all and if so, the preferred surgical approach and resection's totality. The histopathological findings primarily indicate that embryonic malformations-at the first glan...
Source: Der Radiologe - May 17, 2018 Category: Radiology Authors: Eymann R, Kiefer M Tags: Radiologe Source Type: research

[Agenesis of the corpus callosum].
Abstract CLINICAL ISSUE: Agenesis of the corpus callosum is reported to have an incidence of about 1:4000 live births. In 30-45% of cases, genetic etiologies can be identified, e. g., 10% chromosomal anomalies and 20-35% genetic syndromes. Environmental factors like fetal alcohol syndrome are also known to be prone to callosal agenesis. Callosal agenesis can be complete or partial and can be isolated or associated with other central nervous system (CNS) anomalies (e. g., cortical developmental disorders, callosal lipoma, intracranial cysts) or extra-CNS anomalies (e. g., eyes, face, cardiovascular). STA...
Source: Der Radiologe - May 17, 2018 Category: Radiology Authors: Lieb JM, Ahlhelm FJ Tags: Radiologe Source Type: research

[CEUS-diagnosis of solid renal tumors].
l K Abstract CLINICAL ISSUE: Renal lesions are detected earlier, often as a result of ultrasound examinations. However, the imaging-based differential diagnosis of different tumour entities remains challenging STANDARD RADIOLOGICAL METHODS: All renal tumours>1 cm should be evaluated for malignancy by computed tomography (CT) or magnetic resonance imaging (MRI). If an angiomyolipoma diagnosis cannot be established with imaging, further diagnostics are appropriate or if malignant progression is suspected, then multidisciplinary discussion for TNM-staging based uro-oncologic therapy is usual. METHODICA...
Source: Der Radiologe - May 16, 2018 Category: Radiology Authors: Stock K, Kübler H, Maurer T, Slotta-Huspenina J, Holzapfel K Tags: Radiologe Source Type: research

[CEUS-diagnostic workup of cystic renal lesions].
levert DA Abstract CLINICAL/METHODICAL ISSUE: Cystic renal lesions are common incidental findings in radiological imaging and they should be adequately examined to be able to characterize them as benign or malignant. STANDARD RADIOLOGICAL METHODS: It is not always possible to sufficiently characterize cystic renal lesion solely using native B‑mode sonography and color-Doppler sonography. METHODICAL INNOVATIONS: Using contrast-enhanced ultrasound (CEUS), it is possible to dynamically evaluate the perfusion of cystic renal lesions and to characterize the potential malignancy of these lesions using the Bo...
Source: Der Radiologe - May 4, 2018 Category: Radiology Authors: Rübenthaler J, Mueller-Peltzer K, Negrão de Figueiredo G, Gresser E, Clevert DA Tags: Radiologe Source Type: research

[Contrast-enhanced ultrasound in the diagnostic workup of lymph nodes].
Abstract CLINICAL/METHODICAL ISSUE: Daily tasks in sonographic diagnostics include detection and characterization of peripheral and abdominal lymph nodes. STANDARD RADIOLOGICAL METHODS: In addition to the B‑mode methods, color-coded Doppler sonography (CCDS) plays an important role in the evaluation of lymph nodes. METHODICAL INNOVATIONS: Contrast-enhanced ultrasound (CEUS) has become a standard procedure in vascular and organ diagnostics. Tissue perfusion can be recorded visually and retrospectively in real time using time-dependent intensity analysis. The contrast agent dosage depends primarily ...
Source: Der Radiologe - May 4, 2018 Category: Radiology Authors: Weskott HP Tags: Radiologe Source Type: research

[Nuclear Magnetic Resonance: Pioneers of discovery].
PMID: 29721600 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - May 2, 2018 Category: Radiology Authors: Semmler W Tags: Radiologe Source Type: research

[CEUS-diagnosis of benign liver lesions].
vert DA Abstract CLINICAL/METHODICAL ISSUE: Focal liver lesions are commonly seen during routine ultrasound examinations. STANDARD RADIOLOGICAL METHODS: With native ultrasound there are lesions that cannot be sufficiently characterized. In these cases additional imaging might be necessary. METHODICAL INNOVATIONS: With contrast-enhanced ultrasound (CEUS), focal liver lesions can be characterized with high diagnostic accuracy. After the ultrasound contrast agent has been injected into a peripheral vein, the examiner saves video loops of the arterial, portal venous and late contrast phases. Combing the...
Source: Der Radiologe - April 27, 2018 Category: Radiology Authors: Müller-Peltzer K, Rübenthaler J, Negrao de Figueiredo G, Clevert DA Tags: Radiologe Source Type: research

[CEUS-Use in testicular pathologies].
CONCLUSION: CEUS is a feasible instrument in the diagnostic work-up of testicular pathologies. Results from previous studies are promising. Regarding the application in cases of scrotal trauma, the method could play an essential role in the future. With regard to a classification of unclear testicular lesions, further studies with a larger number of patients are needed in order to confirm previously described perfusion patterns. PMID: 29704012 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - April 27, 2018 Category: Radiology Authors: Marcon J, Trottmann M, Stief CG, Clevert DA Tags: Radiologe Source Type: research

[CEUS-Diagnostic of malignant liver lesions].
J, Clevert DA Abstract CLINICAL/METHODICAL ISSUE: Cross-sectional modalities or conventional ultrasound are not always able to sufficiently identify and characterize malignant liver lesions. STANDARD RADIOLOGICAL METHODS: The evaluation of malignant liver lesions in conventional ultrasound relies on echostructure, shape and borders, but often warrants additional contrast-enhanced computed tomography (CT) or magnetic resonance imaging (MRI) studies. METHODICAL INNOVATIONS: Contrast-enhanced ultrasound (CEUS) is a relatively safe imaging technique used for the detection and characterization of maligna...
Source: Der Radiologe - April 27, 2018 Category: Radiology Authors: Negrão de Figueiredo G, Müller-Peltzer K, Rübenthaler J, Clevert DA Tags: Radiologe Source Type: research

[Principles of PET].
Abstract Positron emission tomography (PET) is a procedure in nuclear medicine, which is applied predominantly in oncological diagnostics. In the form of modern hybrid machines, such as PET computed tomography (PET/CT) and PET magnetic resonance imaging (PET/MRI) it has found wide acceptance and availability. The PET procedure is more than just another imaging technique, but a functional method with the capability for quantification in addition to the distribution pattern of the radiopharmaceutical, the results of which are used for therapeutic decisions. A profound knowledge of the principles of PE...
Source: Der Radiologe - April 19, 2018 Category: Radiology Authors: Beuthien-Baumann B Tags: Radiologe Source Type: research

[Dyspnea after instillation therapy for bladder cancer].
PMID: 29675695 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - April 19, 2018 Category: Radiology Authors: Julius D, Geerdes Fenge HF, Weber MA Tags: Radiologe Source Type: research

[Injuries of ligaments and tendons of foot and ankle : What every radiologist should know].
Abstract Injuries of the ligaments and tendons of the ankle and foot are among the most common musculoskeletal injuries. A correct and precise description of the pathology and possible accompanying injuries is essential for treatment planning by trauma and orthopedic surgeons. While X‑ray is used to exclude fractures, ultrasound is a very useful tool to assess the ligaments and tendons. For the radiologist, magnetic resonance imaging (MRI) is invaluable regarding the correct assessment of (partial) ruptures, as well as for evaluating accompanying injuries. The aim of the present overview is to provide ...
Source: Der Radiologe - April 13, 2018 Category: Radiology Authors: Thierfelder KM, Gemescu IN, Weber MA, Meier R Tags: Radiologe Source Type: research

[Radiological imaging of inflammatory diseases of the gastrointestinal tract].
PMID: 29626251 [PubMed - in process] (Source: Der Radiologe)
Source: Der Radiologe - April 1, 2018 Category: Radiology Authors: Scharitzer M, Mang T, Herold C Tags: Radiologe Source Type: research

Mitteilungen des Berufsverbandes der Deutschen Radiologen.
Authors: PMID: 29626252 [PubMed - in process] (Source: Der Radiologe)
Source: Der Radiologe - April 1, 2018 Category: Radiology Tags: Radiologe Source Type: research

[Imaging of gastrointestinal inflammation : Characteristic patterns and signs].
This article summarizes common signs and typical patterns frequently seen in inflammatory conditions of the gastrointestinal tract. A systematic approach for structured analysis of specific and nonspecific imaging features and common pitfalls may aid in the interpretation and help to narrow the spectrum of potential differential diagnoses. PMID: 29572712 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - March 23, 2018 Category: Radiology Authors: Mang T, Scharitzer M Tags: Radiologe Source Type: research

[Radiological imaging of acute infectious and non-infectious enterocolitis].
CONCLUSION: Knowledge of characteristic mural and extramural CT of MRI findings, geographic distributions and therapy effects help to guide the differential diagnostics in inflammatory and infectious types of enterocolitis. PMID: 29569035 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - March 22, 2018 Category: Radiology Authors: Wessling J Tags: Radiologe Source Type: research

[Specific characteristics of chest X ‑ray in childhood : Basics for radiologists].
[Specific characteristics of chest X‑ray in childhood : Basics for radiologists]. Radiologe. 2018 Mar 19;: Authors: Schneider K Abstract The radiographic technique of pediatric chest X‑rays is substantially different from that in adults. In nearly all cases ap/pa X‑rays are sufficient and lateral radiographs are rarely needed. In the first years of life the thymus may overshadow the heart, the great vessels and the lung hila. The most important anatomical structures essential for diagnosing pathological findings of the lungs and mediastinum are the trachea with the bifurcation and the main bronc...
Source: Der Radiologe - March 19, 2018 Category: Radiology Authors: Schneider K Tags: Radiologe Source Type: research

[Inflammatory changes of the foot].
Abstract BACKGROUND: Inflammatory changes of the foot are comparatively rare and can be a challenge for radiologists with respect to the differential diagnosis, especially in cases with pre-existing degenerative changes of the foot skeleton. Comprehensive anamnesis and the use of contrast-enhanced MRI diagnostics are therefore often essential for diagnosis. OBJECTIVES: This review provides a cursory overview of the morphological characteristics of inflammatory changes of the foot and their differential diagnoses with a focus on osteomyelitis, joint infections, rheumatological diseases and tenosynovi...
Source: Der Radiologe - March 12, 2018 Category: Radiology Authors: Sprengel SD, Klaan B, Kintzele L Tags: Radiologe Source Type: research

[Inflammatory bowel disease : What does the clinician want to know from the radiologist?]
Abstract BACKGROUND: Inflammatory bowel disease is a complex and challenging disease. In diagnosis and the course of disease both radiology and endoscopy play a vital role. OBJECTIVES: The purpose of this review is to provide an overview of the questions asked by the clinician. Depending on the situation (clinical presentation of the patient, laboratory results) these questions can vary considerably and should be answered using the most appropriate imaging technique. Therefore, in the authors' view, a close cooperation between the clinician and the radiologist is imperative to provide optimal c...
Source: Der Radiologe - March 6, 2018 Category: Radiology Authors: Primas C, Vogelsang H, Bergmann M Tags: Radiologe Source Type: research

[Diverticular disease : Complications and differential diagnosis].
CONCLUSION: According to the new S2K guidelines the subdivision of diverticulitis should be implemented using the so-called classification of diverticular diseases (CDD). This enables a stratification of patients for outpatient or inhospital treatment. PMID: 29500612 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - March 2, 2018 Category: Radiology Authors: Schreyer AG Tags: Radiologe Source Type: research

[Radiological characterization of chronic inflammatory bowel disease].
CONCLUSION: In addition to clinical, laboratory, and endoscopic information, MR enterography provides essential information for the assessment of CIBD activity. PMID: 29500613 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - March 2, 2018 Category: Radiology Authors: Schöllnast H Tags: Radiologe Source Type: research

[Foot and ankle tumours : Part  II: Malignant bone tumours and soft tissue tumours of the foot with differential diagnostic hints].
[Foot and ankle tumours : Part II: Malignant bone tumours and soft tissue tumours of the foot with differential diagnostic hints]. Radiologe. 2018 Feb 28;: Authors: Grieser T Abstract CLINICAL ISSUE: Both benign and malignant tumours are encountered in the foot and ankle. Due to their rarity, however, diagnosis is often uncertain. Usual criteria such as tumour size, invasiveness or pain fail to differentiate benign from malignant neoplasias. STANDARD RADIOLOGICAL METHODS: Plain radiography and-due to the complex foot anatomy-CT are important in the diagnostic evaluation of primary bone tumou...
Source: Der Radiologe - February 28, 2018 Category: Radiology Authors: Grieser T Tags: Radiologe Source Type: research

[Foot and ankle tumours : Part  I: overview of incidence, diagnosis and staging of pedal tumours].
[Foot and ankle tumours : Part I: overview of incidence, diagnosis and staging of pedal tumours]. Radiologe. 2018 Feb 27;: Authors: Grieser T Abstract CLINICAL ISSUE: Foot and ankle tumours are rare. Part I of this paper provides a survey about tumour distribution regarding age and location of benign and malignant bone and soft tissue tumours. STANDARD RADIOLOGICAL METHODS: All diagnostic radiological procedures are used for the diagnostic work-up of pedal tumours, in particular plain radiography, MRI, and ultrasonography. METHODICAL INNOVATIONS: Dual-energy CT proves to be a&...
Source: Der Radiologe - February 27, 2018 Category: Radiology Authors: Grieser T Tags: Radiologe Source Type: research

[Inflammatory gastrointestinal diseases in children : Radiological diagnosis].
Abstract BACKGROUND/CLINICAL ISSUE: Inflammatory bowel diseases are frequently seen in the clinical routine of a pediatric radiologist. The timely diagnosis of inflammatory bowel diseases in children is particularly important in acute cases. STANDARD RADIOLOGICAL METHODS/METHODOLOGICAL INNOVATIONS: This nonsystematic article intends to give an overview of the radiologic imaging methods for the diagnosis and work-up of pediatric patients with inflammatory bowel diseases. PERFORMANCE: Ultrasound imaging is an important basis tool in pediatric clinical practice. However, sensitivity and specificity dep...
Source: Der Radiologe - February 23, 2018 Category: Radiology Authors: Habernig S, Malle P, Hausegger KA Tags: Radiologe Source Type: research

[Inflammatory diseases of the upper gastrointestinal tract : Role of radiology in diagnostics].
CONCLUSION: In addition to the clarification of swallowing disorders, videofluoroscopy can be used to assess postoperative control after antireflux and bariatric surgery. To obtain optimal results in video swallowing studies, the procedure should be adapted to the individual symptoms of the patient. PMID: 29476195 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - February 23, 2018 Category: Radiology Authors: Böhm G Tags: Radiologe Source Type: research

[Perianal inflammatory diseases : Classification and imaging].
AO Abstract During the past 30 years, classifications and scoring systems have been developed in order to evaluate and objectify the degree and activity of anorectal fistulas. Only a few of these disease-specific instruments have been adopted into daily clinical routine. Generally, clinicians tend to use global medical judgement rather than numeric activity indices, which often seem complex and time consuming. Activity scores in Crohn disease, however, appeared to be very useful in clinical trials regarding evaluation of therapy response. Thus, activity indices must be simple and reproducible. The years...
Source: Der Radiologe - February 20, 2018 Category: Radiology Authors: Schäfer AO Tags: Radiologe Source Type: research

[Which typical foot fractures should the radiologist know?]
Abstract CLINICAL/METHODICAL ISSUE: Due to mechanical loading and the number of joints involved, fractures of the foot are among the most common fractures. STANDARD RADIOLOGICAL METHODS: X-ray is basis for diagnostic workup of all foot fractures. METHODICAL INNOVATIONS: For stress fractures, the additional use of magnetic resonance imaging (MRI) is indicated. Computed tomography (CT) can be used for preoperative imaging of intraarticular tarsal fractures. PERFORMANCE: Simple traumatic fractures can be reliably diagnosed by X‑ray. On the other hand, there is a poor sensitivity for stress fract...
Source: Der Radiologe - February 15, 2018 Category: Radiology Authors: Bratke G, Neuhaus V, Slebocki K, Haneder S, Rau R Tags: Radiologe Source Type: research

[Digital volume tomography : Dedicated scanner and cone beam CT with C ‑arm systems].
[Digital volume tomography : Dedicated scanner and cone beam CT with C‑arm systems]. Radiologe. 2018 Feb 07;: Authors: Fiebich M, Weber D Abstract CLINICAL/METHODICAL ISSUE: Digital volume tomography (DVT) and cone-beam computed tomography (CT) with C‑arm systems have become established three-dimensional imaging systems as an alternative to CT in some application areas. STANDARD RADIOLOGICAL METHODS: The technology of the systems is well developed so that they have become a competing method to CT imaging in terms of image quality and radiation exposure. PERFORMANCE: An advantage is ...
Source: Der Radiologe - February 7, 2018 Category: Radiology Authors: Fiebich M, Weber D Tags: Radiologe Source Type: research

[Spinal cysts : Diagnostic workup and therapy].
Abstract CLINICAL ISSUE: Spinal cysts can be classified as meningeal, not meningeal, and tumor-associated cysts. Due to the widespread availability of high-resolution computed tomography and magnet resonance imaging, spinal cysts can be detected with high sensitivity these days. Concerning the variety of potential cystic differential diagnoses, a precise classification is difficult and can often only be realized after surgical inspection or histological examination. PRACTICAL RECOMMENDATIONS: Spinal cysts are generally incidental findings during a routine diagnostic workup and need no further therapy. Su...
Source: Der Radiologe - February 1, 2018 Category: Radiology Authors: Simgen A Tags: Radiologe Source Type: research

[Differential diagnosis of intracerebral and spinal cysts].
PMID: 29411053 [PubMed - in process] (Source: Der Radiologe)
Source: Der Radiologe - February 1, 2018 Category: Radiology Authors: Reith W Tags: Radiologe Source Type: research

Mitteilungen des Berufsverbandes der Deutschen Radiologen.
Authors: PMID: 29411054 [PubMed - in process] (Source: Der Radiologe)
Source: Der Radiologe - February 1, 2018 Category: Radiology Tags: Radiologe Source Type: research

[pet/mri].
[PET/MRI]. Radiologe. 2018 Jan 29;: Authors: Beuthien-Baumann B Abstract CLINICAL/METHODICAL ISSUE: Magnet resonance imaging (MRI) is an excellent anatomical reference method for the combination with positron emission tomography (PET). But MRI does not produce data, which can be directly used for attenuation correction of PET data, potentially compromising quantitative accuracy of PET. STANDARD RADIOLOGICAL METHODS: Hybrid-positron emission tomography/computed tomography (PET/CT) is an established standard diagnostic tool, particularly for staging and restaging in oncology. Attenuation correction...
Source: Der Radiologe - January 29, 2018 Category: Radiology Authors: Beuthien-Baumann B Tags: Radiologe Source Type: research

[X ‑ray Phase Contrast : Principles, potential and advances in clinical translation].
This article describes the basic principles of these novel procedures, summarizes the preclinical research results already achieved exemplified by various organs and shows the potential for future clinical utilization in radiography and computed tomography. PMID: 29374312 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - January 26, 2018 Category: Radiology Authors: Pfeiffer F, Reiser M, Rummeny E Tags: Radiologe Source Type: research

[Importance of Virchow-Robin spaces].
nn A Abstract Virchow-Robin spaces are perivascular fluid-filled cavities that surround perforating arteries and veins in the brain parenchyma. As a rule in healthy people they are approximately 5 mm in diameter. Typical localizations are brainstem ganglia, mesencephalon and the white matter of the brain. Morphological imaging characteristics of Virchow-Robin spaces are round or tubular, smoothly bordered areas which are hyperintense in T2-weighted sequences. Virchow-Robin spaces represent a physiological structure in normal brain parenchyma. It is assumed that they contain interstitial fluid filled with macr...
Source: Der Radiologe - January 26, 2018 Category: Radiology Authors: Reith W, Haußmann A Tags: Radiologe Source Type: research

[Advanced cartilage imaging for detection of cartilage injuries and osteochondral lesions].
CONCLUSIONS: While at the smaller joints of the foot cartilage imaging only plays a minor role, at the ankle joint cross-sectional cartilage imaging using CT and MRI becomes more and more important for clinicians due to emerging therapeutic options, such as different osteochondral repair techniques. PMID: 29374314 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - January 26, 2018 Category: Radiology Authors: Gersing AS, Schwaiger BJ, Wörtler K, Jungmann PM Tags: Radiologe Source Type: research

[Distal radius fractures : Update on imaging].
Abstract Distal radius fractures are associated with high individual and socioeconomic relevance. Optimized radiography and computed tomography (CT) imaging are essential for individualized therapy planning. Plain CT imaging with 3D reconstruction and digital removal of the carpus and ulna is helpful for choosing the surgical approach in the presence of intra-articular radius fractures. If the fracture line leads towards the scapholunate compartment, ligamentous injury requiring treatment can be detected or ruled out before surgery with the help of direct CT arthrography (CTA). Acquisition of imaging data and morp...
Source: Der Radiologe - January 24, 2018 Category: Radiology Authors: Grunz JP, Gietzen CH, Schmitt R, Prommersberger KJ Tags: Radiologe Source Type: research

[Kit-based radiolabeling of PSMA ligands].
PMID: 29362866 [PubMed - as supplied by publisher] (Source: Der Radiologe)
Source: Der Radiologe - January 23, 2018 Category: Radiology Authors: Derlin T Tags: Radiologe Source Type: research

[The role of PSMA PET-CT in patients with metastatic prostate cancer].
r M Abstract Prostate-specific membrane antigen (PSMA) positron emission tomography-computed tomography (PET-CT) imaging for the localization of prostate cancer is increasingly available in Germany. The advances and limitations in different disease stages are reviewed. As the clinical relevance of oligometastatic disease in primary cancer detected by PSMA PET-CT imaging is not yet completely understood, it should only be used in clinical trials. In recurrent prostate cancer after therapy with curative intent, PSMA PET-CT shows encouraging potential for the planning of salvage therapy. In metastatic castration-resi...
Source: Der Radiologe - January 17, 2018 Category: Radiology Authors: von Hardenberg J, Büsing KA, Nuhn P, Ritter M Tags: Radiologe Source Type: research