{"title":"[Differential diagnosis of acute onset loss of consciousness : A case-based review for the radiologist and neurologist].","authors":"Niklas D Frömmel, Stella Schütz","doi":"10.1007/s00117-025-01475-5","DOIUrl":"https://doi.org/10.1007/s00117-025-01475-5","url":null,"abstract":"","PeriodicalId":74635,"journal":{"name":"Radiologie (Heidelberg, Germany)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144531547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Spondylitis and spondylodiscitis].","authors":"Torsten Diekhoff, Dominik Deppe","doi":"10.1007/s00117-025-01478-2","DOIUrl":"https://doi.org/10.1007/s00117-025-01478-2","url":null,"abstract":"<p><strong>Background: </strong>Inflammatory spinal disorders include infectious spondylodiscitis and noninfectious spondyloarthritis. Their clinical differentiation and distinction from degenerative conditions are crucial.</p><p><strong>Objective: </strong>This review aims to clearly describe infectious and noninfectious spondylitis, highlighting diagnostic and therapeutic challenges.</p><p><strong>Materials and methods: </strong>Analysis of current literature and clinical experience regarding infection pathways, clinical symptoms, and characteristic findings in imaging modalities (magnetic resonance imaging [MRI], computed tomography [CT], X‑ray).</p><p><strong>Results: </strong>Infectious spondylodiscitis typically arises through hematogenous or iatrogenic routes, predominantly affecting older patients and presenting specific changes detectable by MRI and CT. Noninfectious spondylarthritis, such as axial spondyloarthritis, typically manifests as enthesitis with characteristic structural lesions. MRI is highly sensitive in identifying active inflammatory lesions, while CT and X-ray are advantageous for visualizing chronic structural changes.</p><p><strong>Conclusion: </strong>Diagnosing inflammatory spinal disorders remains challenging and requires a combination of clinical and imaging findings. Unified definitions and standardized diagnostic procedures are essential to minimize incorrect assessment and facilitate targeted therapy.</p>","PeriodicalId":74635,"journal":{"name":"Radiologie (Heidelberg, Germany)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144487409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluation of deep learning reconstruction in accelerated knee MRI: comparison of visual and diagnostic performance metrics.","authors":"Shenglian Wen, Yifan Xu, Guangxin Yang, Fuling Huang, Zisan Zeng","doi":"10.1007/s00117-025-01464-8","DOIUrl":"https://doi.org/10.1007/s00117-025-01464-8","url":null,"abstract":"<p><strong>Objective: </strong>To investigate the clinical value of deep learning reconstruction (DLR) in accelerated magnetic resonance imaging (MRI) of the knee and compare its visual quality and diagnostic performance metrics with conventional fast spin-echo T2-weighted imaging with fat suppression (FSE-T2WI-FS).</p><p><strong>Methods: </strong>This prospective study included 116 patients with knee injuries. All patients underwent both conventional FSE-T2WI-FS and DLR-accelerated FSE-T2WI-FS scans on a 1.5‑T MRI scanner. Two radiologists independently evaluated overall image quality, artifacts, and image sharpness using a 5-point Likert scale. The signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) of lesion regions were measured. Subjective scores were compared using the Wilcoxon signed-rank test, SNR/CNR differences were analyzed via paired t tests, and inter-reader agreement was assessed using Cohen's kappa.</p><p><strong>Results: </strong>The accelerated sequences with DLR achieved a 36 % reduction in total scan time compared to conventional sequences (p < 0.05), shortening acquisition from 9 min 50 s to 6 min 15 s. Moreover, DLR demonstrated superior artifact suppression and enhanced quantitative image quality, with significantly higher SNR and CNR (p < 0.001). Despite these improvements, diagnostic equivalence was maintained: No significant differences were observed in overall image quality, sharpness (p > 0.05), or lesion detection rates. Inter-reader agreement was good (κ> 0.75), further validating the clinical reliability of the DLR technique.</p><p><strong>Conclusion: </strong>Using DLR-accelerated FSE-T2WI-FS reduces scan time, suppresses artifacts, and improves quantitative image quality while maintaining diagnostic accuracy comparable to conventional sequences. This technology holds promise for optimizing clinical workflows in MRI of the knee.</p>","PeriodicalId":74635,"journal":{"name":"Radiologie (Heidelberg, Germany)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Semicircular canal dehiscence syndrome].","authors":"Malvina Garner","doi":"10.1007/s00117-025-01468-4","DOIUrl":"https://doi.org/10.1007/s00117-025-01468-4","url":null,"abstract":"<p><strong>Clinical/methodological issue: </strong>Semicircular canal dehiscence (SCD) is a rare but clinically significant cause of vertigo and auditory symptoms. The clinical presentation is relatively specific and typically includes sound- or pressure-induced rotational vertigo accompanied by nystagmus, autophony, hypersensitivity to bone-conducted sound (hyperacusis), and pseudo-conductive hearing loss. Imaging plays a central role in establishing an accurate diagnosis and in excluding differential diagnoses. High-resolution thin-slice computed tomography (CT), particularly when combined with magnetic resonance imaging (MRI), forms the cornerstone of radiologic assessment. Importantly, a substantial proportion of patients with radiologically confirmed dehiscence remain asymptomatic. While the presence of vestibular symptoms in conjunction with a bony dehiscence should raise suspicion for SCD syndrome, other etiologies must be prioritized in the differential diagnosis based on clinical history, examination, and imaging findings, given the rarity of the condition.</p>","PeriodicalId":74635,"journal":{"name":"Radiologie (Heidelberg, Germany)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Hypersensitivity pneumonitis : S2K guideline from a radiological perspective].","authors":"Okka W Hamer, Dirk Koschel, Beate Rehbock","doi":"10.1007/s00117-025-01461-x","DOIUrl":"https://doi.org/10.1007/s00117-025-01461-x","url":null,"abstract":"<p><p>Hypersensitivity pneumonitis (HP, also known as extrinsic allergic alveolitis [EAA]) is a rare disease which is limited to the lungs and caused by an immunological inflammatory reaction of the lung parenchyma and terminal bronchioli. The first German guideline on the diagnosis and treatment of HP was published in 2024. The imaging method of choice is high-resolution computed tomography (HRCT). Radiologically, a distinction is made between purely inflammatory and fibrotic HP. If there are signs of fibrotic HP in the HRCT, the relation between the extent of inflammation and fibrosis should be determined and given in the report. The prognosis depends significantly on the extent of fibrosis and the proportion of so-called honeycombs.</p>","PeriodicalId":74635,"journal":{"name":"Radiologie (Heidelberg, Germany)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144318913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Hematogenous osteomyelitis in children : A feared pediatric emergency].","authors":"Markus Uhl, Markus Hufnagel","doi":"10.1007/s00117-025-01469-3","DOIUrl":"https://doi.org/10.1007/s00117-025-01469-3","url":null,"abstract":"<p><strong>Clinical/methodological issue: </strong>Hematogenously disseminated osteomyelitis in children and adolescents is an acute disease with a substantial threat to the health of a child or adolescent. Due to the destruction of bones or joints within hours to days and the risk of bacterial sepsis, it is a feared pediatric emergency that requires hospitalization in a children's hospital and rapid action.</p><p><strong>Standard radiological methods: </strong>The standard radiological procedures are X‑ray, sonography and magnetic resonance imaging (MRI).</p><p><strong>Methodological innovations/performance: </strong>Contrast-enhanced MRI has established itself as the gold standard for the detection of osteomyelitis.</p><p><strong>Achievements: </strong>It is characterized by a very high sensitivity and high specificity.</p><p><strong>Practical recommendations: </strong>If there is a clinical suspicion of bacterial osteomyelitis, an MRI diagnosis must be carried out quickly.</p>","PeriodicalId":74635,"journal":{"name":"Radiologie (Heidelberg, Germany)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144303911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Petrous bone fractures].","authors":"Armin Bachhuber","doi":"10.1007/s00117-025-01467-5","DOIUrl":"https://doi.org/10.1007/s00117-025-01467-5","url":null,"abstract":"<p><strong>Background: </strong>The temporal bone is one of the most complex bones in the human body. Fractures require significant force and are usually associated with extensive damage to adjacent structures.</p><p><strong>Objective: </strong>Which imaging modality facilitates the assessment of petrous bone fractures, and which anatomical landmarks may be used for orientation?</p><p><strong>Methods: </strong>A literature search on PubMed.gov was conducted to determine the current state of research.</p><p><strong>Results: </strong>Injuries to the petrous part of the temporal bone often involve the facial nerve and the vestibulocochlear nerve, as well as the cochlea and the vestibular organ. This article presents strategies to facilitate correct diagnosis.</p><p><strong>Conclusion: </strong>In addition to the (often knotty) description of the fracture, it is essential to assess the cranial nerves that transverse the petrous bone and to evaluate the auditory ossicles.</p>","PeriodicalId":74635,"journal":{"name":"Radiologie (Heidelberg, Germany)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144303912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Tumors of the petrous bone].","authors":"Frederik Fries","doi":"10.1007/s00117-025-01466-6","DOIUrl":"https://doi.org/10.1007/s00117-025-01466-6","url":null,"abstract":"<p><strong>Background: </strong>Tumors of the petrous bone pose a significant challenge in radiological diagnostics due to their complex anatomical location.</p><p><strong>Objective: </strong>This article provides an overview of the imaging characteristics of the most important tumors and tumor-like lesions of the petrous bone.</p>","PeriodicalId":74635,"journal":{"name":"Radiologie (Heidelberg, Germany)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144210447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Prof. Dr. Gerhard van Kaick on his 90<sup>th</sup> birthday].","authors":"G Layer, S Delorme, H-P Schlemmer, W Semmler","doi":"10.1007/s00117-025-01460-y","DOIUrl":"10.1007/s00117-025-01460-y","url":null,"abstract":"","PeriodicalId":74635,"journal":{"name":"Radiologie (Heidelberg, Germany)","volume":" ","pages":"454-455"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144082713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K I Ringe, I Molwitz, A G Schreyer, J Wessling, L Grenacher, M S Juchems
{"title":"[Postsurgical follow-up and long-term monitoring of colorectal cancer : Radiology as a key component].","authors":"K I Ringe, I Molwitz, A G Schreyer, J Wessling, L Grenacher, M S Juchems","doi":"10.1007/s00117-025-01435-z","DOIUrl":"10.1007/s00117-025-01435-z","url":null,"abstract":"<p><strong>Clinical/methodological issue: </strong>Colorectal cancer is one of the most common malignant tumors worldwide. Postsurgical follow-up and long-term monitoring are essential to detect local recurrence, metastases, or secondary tumors at an early stage.</p><p><strong>Standard radiological methods: </strong>According to the current guideline on colorectal cancer, radiologic follow-up is primarily performed using a single computed tomography (CT) scan 3 months after completion of therapy. Annual chest X‑ray examinations within the first 5 years after completion of treatment can be employed, and, due to cost-effective availability, regular abdominal ultrasound is recommended.</p><p><strong>Methodological innovations: </strong>The German guideline on colorectal cancer is currently being revised. As the sensitivity of ultrasound is inferior to CT and magnetic resonance imaging (MRI), thoracoabdominal CT will probably become crucial in follow-up care with the revised guideline, which would align with international recommendations.</p><p><strong>Performance: </strong>CT is well suited for detecting local recurrence, as well as lung or liver metastases. MRI is used in assessing local cancer grades for treatment planning and monitoring. Structured reporting, stage- and guideline-based recommendations including follow-up intervals as well as interdisciplinary tumor conferences ensure high-quality follow-up care.</p><p><strong>Achievements: </strong>Radiology is essential to interdisciplinary follow-up care for colorectal cancer.</p><p><strong>Practical recommendations: </strong>Structured reporting and clear recommendations on follow-up intervals should be standard in radiological reports. The importance of radiological follow-up for patients with colorectal cancer is likely to increase further with the guideline that is currently being revised.</p>","PeriodicalId":74635,"journal":{"name":"Radiologie (Heidelberg, Germany)","volume":" ","pages":"436-442"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143733533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}