journal
https://read.qxmd.com/read/38699593/comparing-2-dimensional-versus-3-dimensional-mr-myelography-for-cerebrospinal-fluid-leak-detection
#21
JOURNAL ARTICLE
Iichiro Osawa, Takashi Mitsufuji, Keita Nagawa, Yuki Hara, Toshimasa Yamamoto, Nobuo Araki, Eito Kozawa
PURPOSE: We compared cerebrospinal fluid (CSF) leak conspicuity and image quality as visualized using 3D versus 2D magnetic resonance (MR) myelography in patients with spinal CSF leaks. METHODS: Eighteen patients underwent spinal MR imaging at 3 Tesla. Three board-certified radiologists independently evaluated CSF leak conspicuity and image quality on a 4-point scale; the latter assessed by scoring fat suppression, venous visualization, and severity of CSF flow artifacts...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38699592/machine-learning-approaches-in-the-prediction-of-positive-axillary-lymph-nodes-post-neoadjuvant-chemotherapy-using-mri-ct-or-ultrasound-a-systematic-review
#22
REVIEW
Shirin Yaghoobpoor, Mobina Fathi, Hamed Ghorani, Parya Valizadeh, Payam Jannatdoust, Arian Tavasol, Melika Zarei, Arvin Arian
BACKGROUND AND OBJECTIVE: Neoadjuvant chemotherapy is a standard treatment approach for locally advanced breast cancer. Conventional imaging modalities, such as magnetic resonance imaging (MRI), computed tomography (CT), and ultrasound, have been used for axillary lymph node evaluation which is crucial for treatment planning and prognostication. This systematic review aims to comprehensively examine the current research on applying machine learning algorithms for predicting positive axillary lymph nodes following neoadjuvant chemotherapy utilizing imaging modalities, including MRI, CT, and ultrasound...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38681663/narrow-band-imaging-based-radiogenomics-for-predicting-radiosensitivity-in-nasopharyngeal-carcinoma
#23
JOURNAL ARTICLE
Cheng-Wei Tie, Xin Dong, Ji-Qing Zhu, Kai Wang, Xu-Dong Liu, Yu-Meng Liu, Gui-Qi Wang, Ye Zhang, Xiao-Guang Ni
OBJECTIVES: This study aims to assess the efficacy of narrow band imaging (NBI) endoscopy in utilizing radiomics for predicting radiosensitivity in nasopharyngeal carcinoma (NPC), and to explore the associated molecular mechanisms. MATERIALS: The study included 57 NPC patients who were pathologically diagnosed and underwent RNA sequencing. They were categorized into complete response (CR) and partial response (PR) groups after receiving radical concurrent chemoradiotherapy...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38681662/modified-respiratory-triggered-space-sequences-for-magnetic-resonance-cholangiopancreatography
#24
JOURNAL ARTICLE
Dayong Jin, Xin Li, Yifan Qian, Yanqiang Qiao, Liyao Liu, Juan Tian, Lei Wang, Yongli Ma, Yue Qin, Yinhu Zhu
BACKGROUND: Respiratory-triggered (RT) and breath-hold are the most common acquisition modalities for magnetic resonance cholangiopancreatography (MRCP). The present study compared the three different acquisition modalities for optimizing the use of MRCP in patients with diseases of the pancreatic and biliary systems. MATERIALS AND METHODS: Three MRCP acquisition modalities were used in this study: conventional respiratory-triggered sampling perfection with application-optimized contrasts using different flip evolutions (RT-SPACE), modified RT-SPACE, and breath-hold (BH)-SPACE...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38681661/diagnostic-performance-of-different-imaging-modalities-for-splenic-malignancies-a-comparative-meta-analysis
#25
JOURNAL ARTICLE
Parya Valizadeh, Payam Jannatdoust, Mohammadreza Tahamtan, Hamed Ghorani, Soroush Soleimani Dorcheh, Khashayar Farnoud, Faeze Salahshour
BACKGROUND AND OBJECTIVES: The spleen hosts both benign and malignant lesions. Despite multiple imaging modalities, the distinction between these lesions poses a diagnostic challenge, marked by varying diagnostic accuracy levels across methods. In this study, we aimed to evaluate and compare the diagnostic performance of various imaging techniques for detecting malignant splenic lesions. METHODS: Following PRISMA guidelines, we searched PubMed, Scopus, and Web of Sciences databases for studies evaluating imaging techniques in detecting malignant splenic lesions...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38660370/reproducing-recist-lesion-selection-via-machine-learning-insights-into-intra-and-inter-radiologist-variation
#26
JOURNAL ARTICLE
Teresa M Tareco Bucho, Liliana Petrychenko, Mohamed A Abdelatty, Nino Bogveradze, Zuhir Bodalal, Regina G H Beets-Tan, Stefano Trebeschi
BACKGROUND: The Response Evaluation Criteria in Solid Tumors (RECIST) aims to provide a standardized approach to assess treatment response in solid tumors. However, discrepancies in the selection of measurable and target lesions among radiologists using these criteria pose a significant limitation to their reproducibility and accuracy. This study aimed to understand the factors contributing to this variability. METHODS: Machine learning models were used to replicate, in parallel, the selection process of measurable and target lesions by two radiologists in a cohort of 40 patients from an internal pan-cancer dataset...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38559359/evaluation-of-multi-parameter-mri-in-preoperative-staging-of-endometrial-carcinoma
#27
JOURNAL ARTICLE
Lianbi Zhang, Liqiong Liu
BACKGROUND: Endometrial carcinoma (EC) is a prevalent gynecological malignancy, necessitating accurate preoperative staging for effective treatment planning. This study explores the application value of multi-parameter MRI in diagnosing and staging endometrial cancer. METHODS: Seventy-six patients diagnosed with endometrial cancer underwent 3.0 T pelvic MRI within two weeks before surgery. Imaging data were analyzed based on FIGO clinical staging criteria...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38544918/radiomics-approach-to-distinguish-between-benign-and-malignant-soft-tissue-tumors-on-magnetic-resonance-imaging
#28
JOURNAL ARTICLE
Lei Xu, Meng-Yue Wang, Liang Qi, Yue-Fen Zou, W U Fei-Yun, Xiu-Lan Sun
OBJECTIVE: To build a radiomics signature based on MRI images and evaluate its capability for preoperatively identifying the benign and malignant Soft tissue neoplasms (STTs). MATERIALS AND METHODS: 193 patients (99 malignant STTs and 94 benign STTs) were at random segmented into a training cohort (69 malignant STTs and 65 benign STTs) and a validation cohort (30 malignant STTs and 29 benign STTs) with a portion of 7:3. Radiomics features were extracted from T2 with fat saturation and T1 with fat saturation and gadolinium contrast images...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38544917/differentiation-between-normal-and-metastatic-lymph-nodes-in-patients-with-skin-melanoma-preliminary-findings-using-a-dixon-based-whole-body-mri-approach
#29
JOURNAL ARTICLE
C Brussaard, L Faggioni, F E Ramirez-Barbosa, M Vervoort, Y Jansen, B Neyns, J de Mey, I Willekens, D Cioni, E Neri
PURPOSE: Metastatic melanoma lymph nodes (MMLns) might be challenging to detect on MR-WBI, as both MMLns and normal lymph nodes (NLns) can show restricted water diffusion. Our purpose is to assess the potential contribution of the DIXON sequence in differentiating MMLns from NLns. MATERIAL AND METHODS: We followed a cohort of 107 patients with stage IIIb/c and IV skin melanoma for 32 months using MR-WBI with DIXON, STIR, and DWI/ADC sequences. We compared signal intensity (SI) values of MMLns and NLns in the four series of the DIXON sequence (in/out-of-phase, fat_only, and water_only series)...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38495213/fast-5-minute-shoulder-mri-protocol-with-accelerated-tse-sequences-and-deep-learning-image-reconstruction-for-the-assessment-of-shoulder-pain-at-1-5-and-3%C3%A2-tesla
#30
JOURNAL ARTICLE
Judith Herrmann, You-Shan Feng, Sebastian Gassenmaier, Jan-Peter Grunz, Gregor Koerzdoerfer, Andreas Lingg, Haidara Almansour, Dominik Nickel, Ahmed E Othman, Saif Afat
PURPOSE: The objective of this study was to implement a 5-minute MRI protocol for the shoulder in routine clinical practice consisting of accelerated 2D turbo spin echo (TSE) sequences with deep learning (DL) reconstruction at 1.5 and 3 Tesla, and to compare the image quality and diagnostic performance to that of a standard 2D TSE protocol. METHODS: Patients undergoing shoulder MRI between October 2020 and June 2021 were prospectively enrolled. Each patient underwent two MRI examinations: first a standard, fully sampled TSE (TSES ) protocol reconstructed with a standard reconstruction followed by a second fast, prospectively undersampled TSE protocol with a conventional parallel imaging undersampling pattern reconstructed with a DL reconstruction (TSEDL )...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38482518/detection-of-acute-pulmonary-embolism-using-native-repeated-magnetic-resonance-imaging-acquisitions-under-free-breathing-and-without-respiratory-or-cardiac-gating-a-diagnostic-accuracy-study
#31
JOURNAL ARTICLE
Koshiar Medson, Roberto Vargas Paris, Alexander Fyrdahl, Peder Wiklund, Sven Nyren, Eli Westerlund, Peter Lindholm
OBJECTIVES: Computed tomography pulmonary angiography (CTPA) is the gold standard diagnostic method for patients with suspected pulmonary embolism (PE), but it has its drawbacks, including exposure to ionizing radiation and iodinated contrast agent. The present study aims to evaluate the diagnostic performance of our in-house developed non-contrast MRI protocol for PE diagnosis in reference to CTPA. METHODS: 107 patients were included, all of whom underwent MRI immediately before or within 36 hours after CTPA...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38390438/imaged-periductal-infiltration-diagnostic-and-prognostic-role-in-intrahepatic-mass-forming-cholangiocarcinoma
#32
JOURNAL ARTICLE
Kenichiro Okumura, Kazuto Kozaka, Azusa Kitao, Norihide Yoneda, Takahiro Ogi, Hiroko Ikeda, Toshifumi Gabata, Satoshi Kobayashi
PURPOSE: This study examines periductal infiltration in intrahepatic mass-forming cholangiocarcinoma (IMCC), focusing on its importance for differentiating hepatic tumors and its influence on post-surgical survival in IMCC patients. METHODS: Eighty-three consecutive patients with IMCC (n = 43) and liver cancer whose preoperative images showed intrahepatic bile duct dilatation adjacent to the tumor for differential diagnosis from hepatocellular carcinoma (HCC) [n = 21], metastatic liver cancer (MLC) [n = 16] and combined hepatocellular-cholangiocarcinoma (cHCC-CC) [n = 3] were enrolled...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38357385/imaging-of-pancreatic-ductal-adenocarcinoma-an-update-for-all-stages-of-patient-management
#33
JOURNAL ARTICLE
Carlos Bilreiro, Luísa Andrade, Inês Santiago, Rui Mateus Marques, Celso Matos
BACKGROUND: Pancreatic ductal adenocarcinoma (PDAC) is a common and lethal cancer. From diagnosis to disease staging, response to neoadjuvant therapy assessment and patient surveillance after resection, imaging plays a central role, guiding the multidisciplinary team in decision-planning. REVIEW AIMS AND FINDINGS: This review discusses the most up-to-date imaging recommendations, typical and atypical findings, and issues related to each step of patient management...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38347937/radiomics-and-machine-learning-based-on-preoperative-mri-for-predicting-extrahepatic-metastasis-in-hepatocellular-carcinoma-patients-treated-with-transarterial-chemoembolization
#34
JOURNAL ARTICLE
Gang Peng, Xiaojing Cao, Xiaoyu Huang, Xiang Zhou
PURPOSE: To develop and validate a radiomics machine learning (Rad-ML) model based on preoperative MRI to predict extrahepatic metastasis (EHM) in hepatocellular carcinoma (HCC) patients receiving transarterial chemoembolization (TACE) treatment. METHODS: A total of 355 HCC patients who received multiple TACE procedures were split at random into a training set and a test set at a 7:3 ratio. Radiomic features were calculated from tumor and peritumor in arterial phase and portal venous phase, and were identified using intraclass correlation coefficient, maximal relevance and minimum redundancy, and least absolute shrinkage and selection operator techniques...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38327544/autoimmune-encephalitis-early-and-late-findings-on-serial-mr-imaging-and-correlation-to-treatment-timepoints
#35
JOURNAL ARTICLE
Mahmoud Abunada, Nathalie Nierobisch, Riccardo Ludovichetti, Cyril Simmen, Robert Terziev, Claudio Togni, Lars Michels, Zsolt Kulcsar, Nicolin Hainc
INTRODUCTION: MRI is negative in a large percentage of autoimmune encephalitis cases or lacks findings specific to an antibody. Even rarer is literature correlating the evolution of imaging findings with treatment timepoints. We aim to characterize imaging findings in autoimmune encephalitis at presentation and on follow up correlated with treatment timepoints for this rare disease. METHODS: A full-text radiological information system search was performed for "autoimmune encephalitis" between January 2012 and June 2022...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38314183/preoperative-prediction-of-perineural-invasion-and-lymphovascular-invasion-with-ct-radiomics-in-gastric-cancer
#36
JOURNAL ARTICLE
Yaoyao He, Miao Yang, Rong Hou, Shuangquan Ai, Tingting Nie, Jun Chen, Huaifei Hu, Xiaofang Guo, Yulin Liu, Zilong Yuan
OBJECTIVES: To determine whether contrast-enhanced CT radiomics features can preoperatively predict lymphovascular invasion (LVI) and perineural invasion (PNI) in gastric cancer (GC). METHODS: A total of 148 patients were included in the LVI group, and 143 patients were included in the PNI group. Three predictive models were constructed, including clinical, radiomics, and combined models. A nomogram was developed with clinical risk factors to predict LVI and PNI status...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38304573/cross-sectional-imaging-after-pancreatic-surgery-the-dialogue-between-the-radiologist-and-the-surgeon
#37
JOURNAL ARTICLE
Cesare Maino, Marco Cereda, Paolo Niccolò Franco, Piero Boraschi, Roberto Cannella, Luca Vittorio Gianotti, Giulia Zamboni, Federica Vernuccio, Davide Ippolito
Pancreatic surgery is nowadays considered one of the most complex surgical approaches and not unscathed from complications. After the surgical procedure, cross-sectional imaging is considered the non-invasive reference standard to detect early and late compilations, and consequently to address patients to the best management possible. Contras-enhanced computed tomography (CECT) should be considered the most important and useful imaging technique to evaluate the surgical site. Thanks to its speed, contrast, and spatial resolution, it can help reach the final diagnosis with high accuracy...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38304572/deep-learning-radiomics-model-based-on-pet-ct-predicts-pd-l1-expression-in-non-small-cell-lung-cancer
#38
JOURNAL ARTICLE
Bo Li, Jie Su, Kai Liu, Chunfeng Hu
PURPOSE: Programmed cell death protein-1 ligand (PD-L1) is an important prognostic predictor for immunotherapy of non-small cell lung cancer (NSCLC). This study aimed to develop a non-invasive deep learning and radiomics model based on positron emission tomography and computed tomography (PET/CT) to predict PD-L1 expression in NSCLC. METHODS: A total of 136 patients with NSCLC between January 2021 and September 2022 were enrolled in this study. The patients were randomly divided into the training dataset and the validation dataset in a ratio of 7:3...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38298532/multisequence-mri-based-radiomics-signature-as-potential-biomarkers-for-differentiating-kras-mutations-in-non-small-cell-lung-cancer-with-brain-metastases
#39
JOURNAL ARTICLE
Xinna Lv, Ye Li, Bing Wang, Yichuan Wang, Zexuan Xu, Dailun Hou
BACKGROUND: Kirsten rat sarcoma virus (KRAS) has evolved from a genotype with predictive value to a therapeutic target recently. The study aimed to establish non-invasive radiomics models based on MRI to discriminate KRAS from epidermal growth factor receptor (EGFR) or anaplastic lymphoma kinase (ALK) mutations in lung cancer patients with brain metastases (BM), then further explore the optimal sequence for prediction. METHODS: This retrospective study involved 317 patients (218 patients in training cohort and 99 patients in testing cohort) who had confirmed of KRAS, EGFR or ALK mutations...
June 2024: European Journal of Radiology Open
https://read.qxmd.com/read/38293283/postmortem-chest-computed-tomography-in-covid-19-a-minimally-invasive-autopsy-method
#40
JOURNAL ARTICLE
Paulo Savoia, Marcio Valente Yamada Sawamura, Renata Aparecida de Almeida Monteiro, Amaro Nunes Duarte-Neto, Maria da Graça Morais Martin, Marisa Dolhnikoff, Thais Mauad, Paulo Hilário Nascimento Saldiva, Claudia da Costa Leite, Luiz Fernando Ferraz da Silva, Ellison Fernando Cardoso
OBJECTIVES: Performing autopsies in a pandemic scenario is challenging, as the need to understand pathophysiology must be balanced with the contamination risk. A minimally invasive autopsy might be a solution. We present a model that combines radiology and pathology to evaluate postmortem CT lung findings and their correlation with histopathology. METHODS: Twenty-nine patients with fatal COVID-19 underwent postmortem chest CT, and multiple lung tissue samples were collected...
June 2024: European Journal of Radiology Open
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