Article
Multidisciplinary Sciences
Fei Chen, Zhenyu Dai, Lizheng Yao, Congsong Dong, Haicun Shi, Weiqiang Dou, Wei Xing
Summary: This study found significant negative correlations between IVIM-derived diffusion dynamics parameters and initial neurological function as well as clinical outcome in patients with acute ischemic stroke, with rADC and rD significantly decreased in the poor outcome group. Therefore, IVIM may be suggested as an effective non-invasive method for evaluating acute ischemic stroke.
Article
Radiology, Nuclear Medicine & Medical Imaging
Qiaoyu Xu, Yanyan Xu, Juan Wang, Hongliang Sun, Jie Lin, Sheng Xie
Summary: This study aimed to investigate the role of ADC values and DCE-MRI parameters in distinguishing mesorectal tumor deposits from metastatic lymph nodes in rectal cancer. By comparing the differences in morphological features, ADC values, and DCE-MRI parameters, it was found that these parameters can help in identifying mesorectal tumor deposits and metastatic lymph nodes in advance.
EUROPEAN RADIOLOGY
(2023)
Article
Clinical Neurology
Kitae Kim, Beom Joon Kim, Jaewon Huh, Seong Kyu Yang, Mi Hwa Yang, Moon-Ku Han, Cheolkyu Jung, Byung Se Choi, Jae Hyoung Kim, Hee-Joon Bae
Summary: This study established the prevalence of positive conversion in DWI-negative stroke and found that positive conversion is associated with a higher risk of recurrent stroke. Factors associated with positive conversion include early neurologic deterioration, atrial fibrillation, among others.
Article
Radiology, Nuclear Medicine & Medical Imaging
Jun Zhang, Yue Wu, Yulin Wang, Xinyue Zhang, Yifei Lei, Guangming Zhu, Cuiping Mao, Liang Zhang, Lin Ma
Summary: The study aimed to improve the differentiation between radiation-induced brain injury and tumor recurrence in glioma patients by using radiomics features derived from diffusion-weighted imaging and arterial spin labeling. A radiomics model was established using machine learning algorithms and evaluated in an independent validation set.
EUROPEAN RADIOLOGY
(2023)
Article
Clinical Neurology
Melissa J. Visser, Joseph Yuan-Mou Yang, Fernando Calamante, Michael Kean, Christopher L. Adamson, Gagan Sharma, Vicki Anderson, Bruce C. V. Campbell, Mark T. Mackay
Summary: This study demonstrated the feasibility of rapidly assessing perfusion-diffusion mismatch in childhood AIS using automated software and identified some children with favorable mismatch profiles. The results suggest potential therapeutic benefit of RAPID use beyond the standard 4.5 hours window for thrombolysis. Further research is needed to determine the utility of perfusion-based imaging for guiding clinical decision making, whether adult thresholds need modification in childhood AIS, and the impact of time-delay and cause on mismatch characteristics.
Article
Radiology, Nuclear Medicine & Medical Imaging
Ryo Kurokawa, Mariko Kurokawa, Akira Baba, Yoshiaki Ota, John Kim, Aristides Capizzano, Ashok Srinivasan, Toshio Moritani
Summary: This study compared the DSC, ADC, and conventional MRI findings between DMG-A and DMG-W and found that DSC-MRI parameters, ADC values, and the T2-FLAIR mismatch sign are useful for differentiating between DMG-A and DMG-W.
EUROPEAN RADIOLOGY
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Daneshwari Kalage, Pankaj Gupta, Ajay Gulati, Thakur Deen Yadav, Vikas Gupta, Lileswar Kaman, Ritambhra Nada, Harjeet Singh, Santosh Irrinki, Parikshaa Gupta, Chandan Das, Usha Dutta, Manavjit Sandhu
Summary: Objective: To investigate the diagnostic performance of a multiparametric MRI protocol in the characterization of gallbladder wall thickening. Methods: Consecutive adults with gallbladder wall thickening were evaluated using multiparametric MRI, and the association of MRI parameters with malignant gallbladder wall thickening was analyzed. Results: The quantitative MRI parameters were significantly associated with malignant gallbladder wall thickening, and the multiparametric MRI showed higher sensitivity than conventional MRI for diagnosing malignant gallbladder wall thickening. Conclusion: Multiparametric MRI improved the diagnostic performance for differentiating benign and malignant gallbladder wall thickening.
EUROPEAN RADIOLOGY
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Felipe S. Furtado, Nathaniel D. Mercaldo, Thomas Vahle, Thomas Benkert, William R. Bradley, Lisa Ratanaprasatporn, Ravi Teja Seethamraju, Mukesh G. Harisinghani, Susanna Lee, Krista Suarez-Weiss, Lale Umutlu, Ciprian Catana, Kelsey L. Pomykala, Liran Domachevsky, Hanna Bernstine, David Groshar, Bruse R. Rosen, Onofrio Antonio Catalano
Summary: This study compared standard (STD-DWI) single-shot echo-planar imaging DWI and simultaneous multislice (SMS) DWI during whole-body positron emission tomography (PET)/MRI in terms of acquisition time, image quality, and lesion detection. The results showed that SMS-DWI shortened the acquisition time and maintained or improved the diagnostic yield in most anatomical regions. Therefore, SMS-DWI has important clinical application prospects in cancer staging and restaging.
EUROPEAN RADIOLOGY
(2023)
Article
Medicine, General & Internal
Ming Li, Yifan Lv, Mingming Wang, Yaying Zhang, Zilai Pan, Yu Luo, Haili Zhang, Jing Wang
Summary: This study investigated the predictive value of ADC volume and Tmax volume in hemorrhagic transformation in patients with acute ischemic stroke. The results showed that both ADC volume and Tmax volume were independent risk factors for hemorrhagic transformation, and early measurement of Tmax volume had the highest predictive value for hemorrhagic transformation.
Article
Radiology, Nuclear Medicine & Medical Imaging
Konrad A. Kruk, Tobias J. Dietrich, Simon Wildermuth, Sebastian Leschka, Andreas Toepfer, Stephan Waelti, Chan-Hi Olaf Kim, Sabine Guesewell, Tim Fischer
Summary: This study evaluated the feasibility of diffusion-weighted imaging (DWI) in diagnosing osteomyelitis and bone marrow edema in the forefoot. The measurement of apparent diffusion coefficient (ADC) values allowed for differentiation between healthy and abnormal bone and provided specific cutoff values for the confirmation or exclusion of osteomyelitis.
JOURNAL OF MAGNETIC RESONANCE IMAGING
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Liang Jiang, Zhongping Ai, Wen Geng, Huiyou Chen, Boxiang Zhao, Haobo Su, Xindao Yin, Yu-Chen Chen
Summary: This study found that in acute stroke patients, the PWI parameters of MTT and TTP may be useful in predicting the occurrence of early new lesions.
QUANTITATIVE IMAGING IN MEDICINE AND SURGERY
(2021)
Article
Chemistry, Multidisciplinary
Davide Maraghelli, Michele Pietragalla, Linda Calistri, Luigi Barbato, Luca Giovanni Locatello, Martina Orlandi, Nicholas Landini, Antonio Lo Casto, Cosimo Nardi
Summary: The oral cavity is a complex anatomical area that can be affected by various diseases. CT and MRI are essential imaging techniques for detecting oral abnormalities, and advanced MRI techniques can improve the identification of oral lesions. However, the analysis of oral cavity imaging is complicated by the close proximity of different mucosal surfaces and metal artifacts from dental materials. Nevertheless, dynamic maneuvers and specific strategies can accurately identify oral lesions.
APPLIED SCIENCES-BASEL
(2022)
Article
Clinical Neurology
Giuseppe Scopelliti, Joseph Benzakoun, Wagih Ben Hassen, Martin Bretzner, Nicolas Bricout, Laurent Puy, Guillaume Turc, Gregoire Boulouis, Catherine Oppenheim, Olivier Naggara, Charlotte Cordonnier, Hilde Henon, Marco Pasi
Summary: This study retrospectively analyzed data from patients with anterior circulation acute ischemic stroke and large vessel occlusion in two French hospitals and found that successful recanalization resulted in diffusion-weighted imaging lesion reversal (DWIR) that had an impact on patient outcome regardless of age. DWIR may be an important and nonage-dependent effect of arterial recanalization, as it seems to beneficially impact 3-month outcomes of both younger and older subjects treated with mechanical thrombectomy for acute ischemic stroke and large vessel occlusion.
Article
Multidisciplinary Sciences
Pamela Wochner, Torben Schneider, Jason Stockmann, Jack Lee, Ralph Sinkus
Summary: Diffusion MRI encodes the diffusion of water molecules by using linearly varying gradient fields. However, when a quadratic gradient field is used, the diffusion in anisotropic media leads to changes in phase and preserves a large portion of the signal. This study confirmed the phase change in anisotropic fiber phantoms through simulations and MR experiments, which aligned with the predicted analytic model.
Article
Radiology, Nuclear Medicine & Medical Imaging
Alejandro Rodriguez-Ortega, Alberto Alegre, Victor Lago, Jose Miguel Carot-Sierra, Amadeo Ten-Esteve, Guillermina Montoliu, Santiago Domingo, Angel Alberich-Bayarri, Luis Marti-Bonmati
Summary: The study aimed to estimate the depth of myometrial invasion in endometrial cancer patients using a machine learning model, texture features, and parameters from preoperative MR images. The model showed the best performance in the test cohort with an accuracy of 86.1% and AUROC of 87.1%. Combining texture features and parameters improved the accuracy of preoperative estimation.
JOURNAL OF MAGNETIC RESONANCE IMAGING
(2021)