Rofo-fortschritte Auf Dem Gebiet Der Rontgenstrahlen Und Der Bildgebenden Verfahren最新文献

{"title":"Performance of fast and ultrafast T2-weighted MRI sequences for common cerebral lesions in children.","authors":"Daniel Gräfe, Rebecca Anders, Jens Frahm, Dirk Voit, Stefan-Horia Simion, Andreas Merkenschlager, Franz Wolfgang Hirsch","doi":"10.1055/a-2404-8674","DOIUrl":"https://doi.org/10.1055/a-2404-8674","url":null,"abstract":"<p><p>The use of fast and ultrafast T2-weighted sequences allows for low-motion-artifact imaging of the cerebrospinal fluid spaces and can thus avoid sedation in young children for cranial MRI (cMRI). It is still unclear to what extent these sequences can also depict other common cerebral findings in children. The aim of the study was to compare the potential delineation of common intracranial findings in pediatric cMRI with two fast and one ultrafast T2-weighted sequences.Children who had undergone a single-shot spin-echo and gradient echo sequence, as well as an ultrafast volume coverage (VC) sequence, in addition to a standard T2-weighted fast spin-echo (FSE) sequence as reference were retrospectively included. Visualization of findings was assessed using a Likert scale from 0 to 3. Differences between groups of findings were quantified using a Kruskal-Wallis test.284 findings in 126 patients (median age: 10.6 years, interquartile range: 5.1 to 15.0 years) were analyzed. Overall, in fast T2-weighted sequences, the percentage of visible (score 2 or 3) findings was between 60% and 100%. There was little difference between the two fast sequences and the ultrafast VC.Ultrafast VC as compared to conventional fast sequences allows for almost the same discrimination of common neuropediatric pathologies but at seven times the speed. Although not an equivalent substitute for T2 FSE in parenchymal findings, it can contribute to triage at little expense and thus reduce the burden on both patients and staff. · Fast T2-weighted sequences can depict many types of neuropediatric findings. · They cannot fully replace a T2 fast spin-echo sequence. · An ultrafast volume coverage sequence shows similar quality to conventional fast sequences. · Gräfe D, Anders R, Frahm J et al. Performance of fast and ultrafast T2-weighted MRI sequences for common cerebral lesions in children. Fortschr Röntgenstr 2024; DOI 10.1055/a-2404-8674.</p>","PeriodicalId":21490,"journal":{"name":"Rofo-fortschritte Auf Dem Gebiet Der Rontgenstrahlen Und Der Bildgebenden Verfahren","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142547117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Age- and sex-related variations of normal spleen T1rho and the more stable liver T1rho to spleen T1rho ratio.","authors":"Yì Xiáng J Wáng, Wei-Ling Yu, Min Deng","doi":"10.1055/a-2428-7409","DOIUrl":"https://doi.org/10.1055/a-2428-7409","url":null,"abstract":"<p><p>We aim to evaluate the potential age- and sex-related variations of normative values of spleen T1rho.Two T1rho sequences were used, with one based on fast spin echo sequence (FSE) and the other based on gradient echo sequence (GRE). Spleen and liver FSE T1rho values were measured in 52 healthy volunteers (36 females, 16 males), and spleen and liver GRE T1rho values were measured in 14 healthy volunteers (6 females, 8 males).For FSE data, an age-related decreasing trend of spleen T1rho was noted for both females and males. This trend was consistent with female liver T1rho values, while such a trend was not noted for male liver T1rho. Females had a higher T1rho than males, both for the spleen (92.8 vs 77.3 ms, p<0.0001) and for the liver (44.2 vs. 38.9 ms, p<0.0001, FSE data). The spleen T1rho value was approximately double the liver T1rho value. The spleen T1rho and liver T1rho were positively correlated, both for FSE data (r=0.611) and GRE data (r=0.541). When the spleen T1rho was used to normalize the liver T1rho, the ratio of T1rho_liver/T1rho_spleen largely removed the sex and age effect. The spleen T1rho in menstrual phase women was 10.7% lower (p=0.012) than that of non-menstrual phase women, while the liver T1rho in menstrual phase women was 3.8% lower than that of non-menstrual phase women.Since women in the menstrual phase tend to have lower body iron, the fact that both liver T1rho and spleen T1rho are shorter among women in the menstrual phase than women in the non-menstrual phase indicates that liver and spleen T1rho physiological variations may not be dominantly affected by the iron content of the tissue. If a pathology has only affected the liver while the spleen is normal, there is a possibility the ratio T1rho_liver/T1rho_spleen may offer better characterization of liver pathologies. · There is an age-related decreasing trend of spleen T1rho.. · Females have a higher spleen T1rho than males.. · The spleen T1rho value is approximately double the liver T1rho value.. · Spleen T1rho and liver T1rho are positively correlated.. · Wáng YXJ, Yu W-L, Deng M. Age- and sex-related variations of normal spleen T1rho and the more stable liver T1rho to spleen T1rho ratio. Fortschr Röntgenstr 2024; DOI 10.1055/a-2428-7409.</p>","PeriodicalId":21490,"journal":{"name":"Rofo-fortschritte Auf Dem Gebiet Der Rontgenstrahlen Und Der Bildgebenden Verfahren","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142507045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Persistent left superior vena cava with confluence into the left atrium: Missing contrast of the pulmonary arteries in the computed tomographic pulmonary angiography in a patient with pulmonary artery embolism].","authors":"Carmen Wolf, Lars-Patrick Andreas Schmill, Agreen Horr, Schekeb Aludin, Hatim Seoudy, Patrick Langguth","doi":"10.1055/a-2411-2627","DOIUrl":"https://doi.org/10.1055/a-2411-2627","url":null,"abstract":"","PeriodicalId":21490,"journal":{"name":"Rofo-fortschritte Auf Dem Gebiet Der Rontgenstrahlen Und Der Bildgebenden Verfahren","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142507044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Hydrodissection of the area nuda hepatis as a periinterventional protective procedure for infracardiac liver tumors].","authors":"Noel Gerencsér, Bernhard Petritsch, Matthias Fürstner","doi":"10.1055/a-2410-8880","DOIUrl":"https://doi.org/10.1055/a-2410-8880","url":null,"abstract":"","PeriodicalId":21490,"journal":{"name":"Rofo-fortschritte Auf Dem Gebiet Der Rontgenstrahlen Und Der Bildgebenden Verfahren","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142507043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Malignancy predictors and treatment strategies for adult intestinal intussusception.","authors":"Philipp Reschke, Quang Anh Le Hong, Leon D Gruenewald, Jennifer Gotta, Vitali Koch, Elena Höhne, Scherwin Mahmoudi, Lisa Joy Juergens, Daniel A Hescheler, Andreas Michael Bucher, Teodora Biciusca, Teresa Schreckenbach, Simon S Martin, Christian Booz, Renate Hammerstingl, Ibrahim Yel, Christoph Mader, Jan-Erik Scholtz, Daniel Pinto Dos Santos, Katrin Eichler, Thomas J Vogl, Tatjana Gruber-Rouh","doi":"10.1055/a-2434-7932","DOIUrl":"https://doi.org/10.1055/a-2434-7932","url":null,"abstract":"<p><p>Intussusception in adult patients is a rare medical finding, which is accompanied by an underlying tumor in some cases. However, no accepted method has been established to identify patients at risk for tumor-related intussusception. This study aimed to identify imaging features as predictors for tumor-related intussusception.CT images of patients with confirmed intussusception were retrospectively acquired between 01/2008 and 12/2022. Available follow-up images and medical health records were evaluated to identify various imaging features, the cause of intussusception, and treatment strategies. Imaging interpretation was conducted by two blinded radiologists. A third radiologist was consulted in cases of disagreement.A total of 71 consecutive patients were included in this study (42 males, 29 females) with a median age of 56 years (interquartile range: 40.5-73.8 years). Enteroenteric intussusceptions in the small bowel were the most common type observed in adult patients. In contrast, colocolic intussusception was more frequently associated with malignancy, and this association was statistically significant (p < 0.05). Among the malignant tumors, adenocarcinoma was the most common, followed by metastases and lymphoma. Additionally, bowel obstruction and wall thickening were significantly correlated with malignancy (p < 0.05). The high negative predictive values (NPVs) and high specificities for ileus (NPV 88.5%, specificity 82.1%), bowel wall thickening (NPV 90.9%, specificity 71.4%), and acute abdomen (NPV 84.6%, specificity 78.8%) suggest that the absence of these features strongly predicts a low probability of malignancy in cases of adult intussusception.Active surveillance with follow-up exams is suitable for asymptomatic and transient intussusception when imaging features suggest a low likelihood of a neoplasm. Additionally, malignancy predictors such as ileus and thickening of the bowel wall in the affected segment could guide tailored treatment. Surgical interventions are essential for symptomatic cases, with adenocarcinoma being the most common malignancy found in colocolic intussusceptions.Intussusception in adults is rare and is often associated with underlying tumors, particularly in colocolic intussusceptions. Key imaging predictors for malignancy include bowel obstruction, wall thickening in the affected segment, and the presence of acute abdomen, with high NPVs and specificities indicating low malignancy risk when these features are absent. Active surveillance is recommended for asymptomatic cases with low neoplasm probability, while surgical intervention is the method of choice for symptomatic patients. · Reschke P, Le Hong QA, Gruenewald LD et al. Malignancy predictors and treatment strategies for adult intestinal intussusception. Fortschr Röntgenstr 2024; DOI 10.1055/a-2434-7932.</p>","PeriodicalId":21490,"journal":{"name":"Rofo-fortschritte Auf Dem Gebiet Der Rontgenstrahlen Und Der Bildgebenden Verfahren","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142507046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Standardized diagnosis of gastrointestinal tumors: an update regarding the situation in Germany.","authors":"Mirjam Gerwing, Inka Ristow, Saif Afat, Markus S Juchems, Johannes Wessling, Andreas G Schreyer, Kristina I Ringe, Ahmed Othman, Roman Paul, Thorsten Persigehl, Michel Eisenblätter","doi":"10.1055/a-2378-6451","DOIUrl":"https://doi.org/10.1055/a-2378-6451","url":null,"abstract":"<p><p>To evaluate the current status of the diagnosis of gastrointestinal tumors in Germany by means of a survey of the oncological imaging working group of the German Radiological Society (DRG) with a focus on the CT protocols being used.Radiologists working in outpatient or inpatient care in Germany were invited. The survey was conducted between 10/2022 and 06/2023 using the SurveyMonkey web tool. Questions related to gastrointestinal cancer were asked with regard to the commonly used imaging modalities, body coverage, and contrast agent phases in CT as well as the use of oral or rectal contrast. The results of the survey were analyzed using descriptive statistics.Clear differences were identified regarding the acquired contrast phases in relation to the place of work - outpatient care, smaller hospitals, maximum care hospitals, or university hospitals. Variances were also recognized regarding oral and rectal contrast. Based on the results and international guidelines, proposals for CT protocols were derived.CT protocols in Germany show a heterogeneous picture regarding acquired contrast phases, as well as oral and rectal contrast for the staging of gastrointestinal cancer. Clear recommendations in the respective guidelines would aid in quality assurance and comparability between different centers. · The examination protocols for the staging of gastrointestinal tumors are heterogeneous in Germany.. · The application of oral and rectal contrast is handled differently at the various radiological centers.. · Standardization of imaging should be targeted.. · Gerwing M, Ristow I, Afat S et al. Standardized diagnosis of gastrointestinal tumors: an update regarding the situation in Germany. Fortschr Röntgenstr 2024; DOI 10.1055/a-2378-6451.</p>","PeriodicalId":21490,"journal":{"name":"Rofo-fortschritte Auf Dem Gebiet Der Rontgenstrahlen Und Der Bildgebenden Verfahren","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142473789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gender- and personality-specific differences in academic qualifications, research motivation, and attractiveness of leadership positions: a survey among radiologists from Germany.","authors":"Isabel Molwitz, Christoph Kemper, Katharina Stahlmann, Jin Yamamura, Gerhard Adam, Marcel Christian Langenbach, Martin Reim, Franz Wegner, Peter Bannas, Joachim Lotz, Elif Can, Vera Zagrosek-Regitz, Bernd Hamm, Sarah Keller-Yamamura","doi":"10.1055/a-2415-7337","DOIUrl":"https://doi.org/10.1055/a-2415-7337","url":null,"abstract":"<p><p>This study investigated gender- and personality-specific differences in academic qualifications, research motivation, and options to increase the attractiveness of leadership positions in radiology.A validated questionnaire with 66 questions was distributed via the German Roentgen Society and individually sent to 4,500 radiologists in Germany. Participants were asked about their gender. Personality dimensions were assessed using the OCEAN (Big Five) model. Multivariable regression analyses were employed.Of 510 included participants (women 237 (46.5%)), men were four times more likely to have acquired an associated professorship (AP, Habilitation Privatdozent) ((odds ratio (OR) 4.39 (2.22-8.67)). Also, they planned to achieve an AP more frequently (OR 2.87 (1.47-5.61)). The only gender-specific motivator for an AP was the option to become eligible for the position of chief physician (men OR 2.56 (1.07-6.15)). Mentors increased the probability of acquiring an AP (OR 2.07 (1.13-3.80)) or striving for an AP (4.82 (2.39-9.73)). Female mentees were likelier to have female mentors (OR 4.62 (1.68-12.73)). To increase the attractiveness of leadership positions, female radiologists perceived gender balance at the management level (OR 3.32 (2.28-4.82)), top sharing (OR 2.22 (1.48-3.32)), and better work-life balance (OR 2.02 (1.19-3.43)) as more relevant than male radiologists. More pronounced openness (OR 1.62 (1.10-2.38)) and extroversion (OR 1.45 (1.07-1.97)) were positively associated with planning an AP. More pronounced agreeableness (OR 0.67 (0.50-0.91)) was negatively associated.Research motivation is mainly independent of gender. Academic qualification varies with gender and personality dimensions. Mentoring, female role models, top sharing, and better work-family compatibility could motivate women to pursue academic leadership. · Male radiologists are more frequently motivated to pursue an associated professorship by the option of becoming a chief physician.. · Openness and extroversion make pursuing an associated professorship more likely.. · Role models at the management level, top sharing, and flexible work time are more important for female radiologists.. · Molwitz I, Kemper C, Stahlmann K et al. Gender- and personality-specific differences in academic qualifications, research motivation, and attractiveness of leadership positions: a survey among radiologists from Germany. Fortschr Röntgenstr 2024; DOI 10.1055/a-2415-7337.</p>","PeriodicalId":21490,"journal":{"name":"Rofo-fortschritte Auf Dem Gebiet Der Rontgenstrahlen Und Der Bildgebenden Verfahren","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142473788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Synovial proliferation in the temporomandibular joint - a rare diagnosis in an extremely rare location].","authors":"Daniel Philipp Mertens, Finja Staabs, Andreas G Schreyer","doi":"10.1055/a-2420-3527","DOIUrl":"https://doi.org/10.1055/a-2420-3527","url":null,"abstract":"","PeriodicalId":21490,"journal":{"name":"Rofo-fortschritte Auf Dem Gebiet Der Rontgenstrahlen Und Der Bildgebenden Verfahren","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142406743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cheerios Sign – wenn Lungenmetastasen zu Frühstücksflocken mutieren.","authors":"Hans Ehlich, Ralf-Thorsten Hoffmann, Marie-Luise Kromrey","doi":"10.1055/a-2423-1751","DOIUrl":"10.1055/a-2423-1751","url":null,"abstract":"","PeriodicalId":21490,"journal":{"name":"Rofo-fortschritte Auf Dem Gebiet Der Rontgenstrahlen Und Der Bildgebenden Verfahren","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142375900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Difficult start to college - a rare eye disease with an unusual clinical course].","authors":"Barbara Greiner, Horst Helbig, Christian Stroszczynski","doi":"10.1055/a-2423-1680","DOIUrl":"10.1055/a-2423-1680","url":null,"abstract":"","PeriodicalId":21490,"journal":{"name":"Rofo-fortschritte Auf Dem Gebiet Der Rontgenstrahlen Und Der Bildgebenden Verfahren","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142375898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}