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Machine learning based classification of spontaneous intracranial hemorrhages using radiomics features. 利用放射组学特征对自发性颅内出血进行基于机器学习的分类。
IF 2.4 3区 医学
Neuroradiology Pub Date : 2024-10-05 DOI: 10.1007/s00234-024-03481-1
Phattanun Thabarsa, Papangkorn Inkeaw, Chakri Madla, Withawat Vuthiwong, Kittisak Unsrisong, Natipat Jitmahawong, Thanwa Sudsang, Chaisiri Angkurawaranon, Salita Angkurawaranon
{"title":"Machine learning based classification of spontaneous intracranial hemorrhages using radiomics features.","authors":"Phattanun Thabarsa, Papangkorn Inkeaw, Chakri Madla, Withawat Vuthiwong, Kittisak Unsrisong, Natipat Jitmahawong, Thanwa Sudsang, Chaisiri Angkurawaranon, Salita Angkurawaranon","doi":"10.1007/s00234-024-03481-1","DOIUrl":"https://doi.org/10.1007/s00234-024-03481-1","url":null,"abstract":"<p><strong>Purpose: </strong>To assess the efficacy of radiomics features extracted from non-contrast computed tomography (NCCT) scans in differentiating multiple etiologies of spontaneous intracerebral hemorrhage (ICH).</p><p><strong>Methods: </strong>CT images and clinical data from 141 ICH patients from 2010 to 2022 were collected. The cohort comprised primary (n = 57), tumorous (n = 46), and vascular malformation-related ICH (n = 38). Radiomics features were extracted from the initial brain NCCT scans and identified potential features using mutual information. A hierarchical classification with AdaBoost classifiers was employed to classify the multiple etiologies of ICH. Age of the patient and ICH's location were examined alongside radiomics features. The accuracy, area under the curve (AUC), sensitivity, and specificity were used to evaluate classification performance.</p><p><strong>Results: </strong>The proposed method achieved an accuracy of 0.79. For identifying primary ICH, the model achieved a sensitivity of 0.86 and specificity of 0.87. Meanwhile, the sensitivity and specificity for identifying tumoral causes were 0.78 and 0.93, respectively. For vascular malformation, the model reached a sensitivity and specificity of 0.72 and 0.89, respectively. The AUCs for primary, tumorous, and vascular malformation were 0.86, 0.85, and 0.82, respectively. The findings further highlight the importance of texture-based variables in ICH classification. The age and location of the ICH can enhance the classification performance.</p><p><strong>Conclusion: </strong>The use of a machine learning model with radiomics features has the potential in classifying the three types of non-traumatic ICH. It may help the radiologist decide on an appropriate further examination plan to arrive at a correct diagnosis.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142378047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pineal gland ADC values in children aged 0 to 4 years: normative data and usefulness in the differential diagnosis with trilateral retinoblastoma. 0 至 4 岁儿童的松果体 ADC 值:标准数据及与三侧视网膜母细胞瘤鉴别诊断的实用性。
IF 2.4 3区 医学
Neuroradiology Pub Date : 2024-10-04 DOI: 10.1007/s00234-024-03479-9
Inês Freire, Lydia Viviana Falsitta, Chetan Sharma, Ulrike Löbel, Sniya Sudhakar, Asthik Biswas, Jessica Cooper, Kshitij Mankad, Kiran Hilal, Catriona Duncan, Felice D'Arco
{"title":"Pineal gland ADC values in children aged 0 to 4 years: normative data and usefulness in the differential diagnosis with trilateral retinoblastoma.","authors":"Inês Freire, Lydia Viviana Falsitta, Chetan Sharma, Ulrike Löbel, Sniya Sudhakar, Asthik Biswas, Jessica Cooper, Kshitij Mankad, Kiran Hilal, Catriona Duncan, Felice D'Arco","doi":"10.1007/s00234-024-03479-9","DOIUrl":"https://doi.org/10.1007/s00234-024-03479-9","url":null,"abstract":"<p><strong>Purpose: </strong>Normative ADC values of the pineal gland in young children are currently lacking, however, these are potentially useful in the differential diagnosis of pineal involvement in trilateral retinoblastoma, which is challenging when the size of the tumor is less than 10-15 mm. The main objective of this study was to establish ADC reference values of the normal pineal gland in a large cohort of children between 0 and 4 years.</p><p><strong>Methods: </strong>This retrospective study was conducted in a tertiary pediatric hospital. We collected 64 patients with normal MRI examination (between 2017 and 2024) and clinical indication unrelated to the pineal gland, and divided them into 5 age groups (0 to 4 years). Gland size and mean ADC values were calculated, using the ellipsoid formula and ROI/histogram analysis, respectively. The established values were tested in three cases of trilateral retinoblastoma (10 to 20 months).</p><p><strong>Results: </strong>Mean ADC values were always above 1000 × 10<sup>- 6</sup> mm<sup>2</sup>/s, while in patients with trilateral retinoblastoma they were around 800 × 10<sup>- 6</sup> mm<sup>2</sup>/s. Pineal ADC values were identical in both genders. The volume of the pineal gland showed a tendency to increase with age.</p><p><strong>Conclusions: </strong>We present ADC reference data for the pineal gland in children under 4 years of age. The distribution of mean ADC values of trilateral retinoblastoma was significantly different from the normative values, hence, the use DWI/ADC may help to identify small trilateral retinoblastoma in children with ocular pathology.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142372443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CT-guided radiofrequency ablation of facial and mandibular nerves in the treatment of compound Meige's syndrome. 在 CT 引导下射频消融面神经和下颌神经以治疗复合梅杰综合征。
IF 2.4 3区 医学
Neuroradiology Pub Date : 2024-10-01 Epub Date: 2024-06-07 DOI: 10.1007/s00234-024-03392-1
Hao Huang, Bing Huang, Xindan Du, Huidan Lin, Xue Li, Xian Zhao, Qinghe Zhou, Ming Yao
{"title":"CT-guided radiofrequency ablation of facial and mandibular nerves in the treatment of compound Meige's syndrome.","authors":"Hao Huang, Bing Huang, Xindan Du, Huidan Lin, Xue Li, Xian Zhao, Qinghe Zhou, Ming Yao","doi":"10.1007/s00234-024-03392-1","DOIUrl":"10.1007/s00234-024-03392-1","url":null,"abstract":"<p><p>This retrospective study examined the clinical outcomes and complications in 6 cases of compound Meige's syndrome, presenting with blepharospasm and masticatory muscle spasm, following treatment with CT-guided radiofrequency ablation targeting bilateral facial nerves and mandibular branches of the trigeminal nerve. After the operation, the symptoms of eyelid spasm and masticatory muscle spasm resolved, but mild facial paralysis and numbness of mandibular nerve innervation persisted. Follow-up for 4-28 months showed that the symptoms of facial paralysis resolved within 2-5 (3.17 ± 0.94) months after the operation, whereas the numbness in the mandibular region persisted, accompanied by a decrease in masticatory function. During the follow-up period, none of the 6 patients experienced a recurrence of Meige's syndrome. These findings suggest that CT-guided radiofrequency ablation of the bilateral facial nerve and mandibular branches of the trigeminal nerve may offer a promising approach to treating compound Meige's syndrome.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11424667/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141284337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Preliminary results of intracranial aneurysm treatment with derivo2heal embolization device. 使用衍生2heal栓塞装置治疗颅内动脉瘤的初步结果。
IF 2.4 3区 医学
Neuroradiology Pub Date : 2024-10-01 Epub Date: 2024-07-01 DOI: 10.1007/s00234-024-03387-y
J Rueckel, Y Ozpeynirci, C Trumm, C Brem, M Pflaeging, T D Fischer, T Liebig
{"title":"Preliminary results of intracranial aneurysm treatment with derivo2heal embolization device.","authors":"J Rueckel, Y Ozpeynirci, C Trumm, C Brem, M Pflaeging, T D Fischer, T Liebig","doi":"10.1007/s00234-024-03387-y","DOIUrl":"10.1007/s00234-024-03387-y","url":null,"abstract":"<p><strong>Introduction: </strong>The Derivo 2 Heal Embolization Device (D2HED) is a novel flow diverter (FD) providing a fibrin-/heparin-based surface coating aiming at lower thrombogenicity. We evaluate periprocedural aspects and preliminary aneurysm occlusion efficacy for intracranial aneurysm treatment.</p><p><strong>Methods: </strong>Thirty-four D2HEDs deployments (34 aneurysms, 32 patients) between 04/2021 and 10/2023 were analyzed. All patients were under dual antiplatelet therapy (dAPT). Periprocedural details, adverse events, and follow-up (FU) imaging were reviewed by consultant-level neuroradiologists. Complication rates and aneurysm occlusion efficacy are compared with performance data of other FDs based on literature research.</p><p><strong>Results: </strong>Each intervention succeeded in the deployment of one D2HED. Significant and/or increased intraaneurysmal contrast stagnation immediately after D2HED deployment was seen in 73.5% of cases according to O'Kelly-Marotta (OKM) grading scale. Clinically relevant early adverse events occurred in three patients: Among them two cases with fusiform aneurysms in the posterior circulation (ischemic events, early in-stent-thrombosis) and one patient (ischemic event) out of the majority of 31 treated internal carotid artery aneurysms (3,2%). Regarding mid-term FU (> 165 days), one aneurysm did not show progressive occlusion presumably caused by a prominent A1 segment arising from the terminal ICA aneurysm itself. Apart from that, mid-term complete / partial occlusion rates of 80% / 20% could be demonstrated.</p><p><strong>Conclusion: </strong>Our case series - although suffering from restricted sample size - suggests a potential effectiveness of D2HED in managing intracranial aneurysms. Further studies with larger samples are warranted to quantify long-term occlusion efficacy and the impact of antithrombogenic surface coating on the necessary (d)APT.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11424707/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141477077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of post-thrombectomy isolated subarachnoid hemorrhage on neurological outcomes in patients with anterior ischemic stroke - a retrospective single-center observational study. 血栓切除术后孤立性蛛网膜下腔出血对前部缺血性脑卒中患者神经功能预后的影响--一项回顾性单中心观察研究。
IF 2.4 3区 医学
Neuroradiology Pub Date : 2024-10-01 Epub Date: 2024-07-09 DOI: 10.1007/s00234-024-03424-w
Natalie van Landeghem, Christoph Ziegenfuß, Aydin Demircioglu, Philipp Dammann, Ramazan Jabbarli, Johannes Haubold, Michael Forsting, Isabel Wanke, Martin Köhrmann, Benedikt Frank, Cornelius Deuschl, Yan Li
{"title":"Impact of post-thrombectomy isolated subarachnoid hemorrhage on neurological outcomes in patients with anterior ischemic stroke - a retrospective single-center observational study.","authors":"Natalie van Landeghem, Christoph Ziegenfuß, Aydin Demircioglu, Philipp Dammann, Ramazan Jabbarli, Johannes Haubold, Michael Forsting, Isabel Wanke, Martin Köhrmann, Benedikt Frank, Cornelius Deuschl, Yan Li","doi":"10.1007/s00234-024-03424-w","DOIUrl":"10.1007/s00234-024-03424-w","url":null,"abstract":"<p><strong>Purpose: </strong>We aimed to investigate the impact of post-thrombectomy isolated subarachnoid hemorrhage (i-SAH) and other types of intracranial hemorrhage (o-ICH) on patient's neurological outcomes.</p><p><strong>Methods: </strong>Stroke data from 2018 to 2022 in a tertiary care center were retrospectively analyzed. Patients with large vessel occlusion from ICA to M2 branch were included. Post-thrombectomy intracranial hemorrhages at 24 h were categorized with Heidelberg Bleeding Classification. Neurological impairment of patients was continuously assessed at admission, at 24 h, 48 h and 72 h, and at discharge. Predictors of i-SAH and o-ICH were assessed.</p><p><strong>Results: </strong>297 patients were included. i-SAH and o-ICH were found in 12.1% (36/297) and 11.4% (34/297) of patients. Overall, NIHSS of i-SAH patients at discharge were comparable to o-ICH patients (median 22 vs. 21, p = 0.889) and were significantly higher than in non-ICH patients (22 vs. 7, p < 0.001). i-SAH often resulted in abrupt deterioration of patient's neurological symptoms at 24 h after thrombectomy. Compared to non-ICH patients, the occurrence of i-SAH was frequently associated with worse neurological outcome at discharge (median NIHSS increase of 4 vs. decrease of 4, p < 0.001) and higher in-hospital mortality (41.7% vs. 23.8%, p = 0.022). Regardless of successful reperfusion (TICI 2b/3), the beneficial impact of thrombectomy appeared to be outweighed by the adverse effect of i-SAH. Incomplete reperfusion and shorter time from symptom onset to admission were associated with higher probability of i-SAH, whereas longer procedure time and lower baseline ASPECTS were predictive for o-ICH occurrence.</p><p><strong>Conclusion: </strong>Post-thrombectomy isolated subarachnoid hemorrhage is a common complication with significant negative impact on neurological outcome.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11424715/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141559371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Decreased DTI-ALPS index in delirium: a preliminary MRI study. 谵妄患者的 DTI-ALPS 指数降低:一项初步磁共振成像研究。
IF 2.4 3区 医学
Neuroradiology Pub Date : 2024-10-01 Epub Date: 2024-07-09 DOI: 10.1007/s00234-024-03415-x
Ye Tu, Renjie Song, Fei Xiong, Xiaoyun Fu
{"title":"Decreased DTI-ALPS index in delirium: a preliminary MRI study.","authors":"Ye Tu, Renjie Song, Fei Xiong, Xiaoyun Fu","doi":"10.1007/s00234-024-03415-x","DOIUrl":"10.1007/s00234-024-03415-x","url":null,"abstract":"<p><strong>Purpose: </strong>Delirium is linked to brain abnormalities, yet the role of the glymphatic system is not well understood. This study aims to examine alterations in brain physiology in delirium by using diffusion-tensor imaging (DTI) to assess water diffusion along the perivascular space (ALPS) and to explore its correlation with clinical symptoms.</p><p><strong>Methods: </strong>We examined 15 patients with delirium and 15 healthy controls, measuring water diffusion metrics along the x-, y-, and z-axes in both projection and association fibers to determine the DTI-ALPS index. We used a general linear model, adjusted for age and sex, to compare the DTI-ALPS index between groups. We also investigated the relationship between the DTI-ALPS index and clinical symptoms using partial correlations.</p><p><strong>Results: </strong>Patients with delirium exhibited significantly lower DTI-ALPS indices compared to healthy controls (1.25 ± 0.15 vs. 1.38 ± 0.10, t = 2.903, p = 0.007; 1.27 ± 0.16 vs. 1.39 ± 0.08, 1.22 ± 0.16 vs. 1.37 ± 0.14, t = 2.617, p = 0.014; t = 2.719, p = 0.011; respectively). However, there was no significant correlation between the DTI-ALPS index and clinical symptoms.</p><p><strong>Conclusion: </strong>Our findings indicate a decreased DTI-ALPS index in patients with delirium, suggesting potential alterations in brain physiology that may contribute to the pathophysiology of delirium. This study provides new insights into the mechanisms underlying delirium.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141559369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Alteration of dynamical degree centrality in brain functional network and its association with metabolic disorder in minimal hepatic encephalopathy. 极小肝性脑病患者大脑功能网络动态度中心性的改变及其与代谢紊乱的关系
IF 2.4 3区 医学
Neuroradiology Pub Date : 2024-10-01 DOI: 10.1007/s00234-024-03470-4
Hui-Wei Huang, Rong-Hua Liu, Jing-Yi Zeng, Dan Li, Jian-Qi Li, Hua-Jun Chen
{"title":"Alteration of dynamical degree centrality in brain functional network and its association with metabolic disorder in minimal hepatic encephalopathy.","authors":"Hui-Wei Huang, Rong-Hua Liu, Jing-Yi Zeng, Dan Li, Jian-Qi Li, Hua-Jun Chen","doi":"10.1007/s00234-024-03470-4","DOIUrl":"https://doi.org/10.1007/s00234-024-03470-4","url":null,"abstract":"<p><strong>Purpose: </strong>To investigate dynamical degree centrality (dDC) alteration and its association with metabolic disturbance and cognitive impairment in minimal hepatic encephalopathy (MHE).</p><p><strong>Methods: </strong>Fifty-eight cirrhotic patients (22 with MHE, 36 without MHE [NHE]) and 25 healthy controls underwent resting-state functional magnetic resonance imaging, <sup>1</sup>H-magnetic resonance spectroscopy, and neurocognitive examination based on the Psychometric Hepatic Encephalopathy Score (PHES). We obtained metabolite ratios in the bilateral posterior cingulate cortex and precuneus, including glutamate and glutamine (Glx)/total creatine (tCr), myo-inositol (mI)/tCr, total choline/tCr, and N-acetyl aspartate/tCr. For each voxel, degree centrality was calculated as the sum of its functional connectivity with other voxels in the brain; and sliding-window correlation was used to calculate dDC per voxel.</p><p><strong>Results: </strong>We observed a stepwise increase in Glx/tCr and a decrease in mI/tCr from NHE to MHE. The intergroup dDC differences were observed in the bilateral posterior cingulate cortex and precuneus (region of interest [ROI1]), bilateral superior-medial frontal gyrus and anterior cingulate cortex (ROI2), and left caudate head. The dDC in ROI2 (r = 0.450, P < 0.001) and mI/tCr (r = 0.297, P = 0.024) was correlated with PHES. Significant correlations were found between dDC in ROI1 and Glx/tCr (r = - 0.413, P = 0.001) and mI/tCr (r = 0.554, P < 0.001). The dDC in ROI2, Glx/tCr, and mI/tCr showed potential for distinguishing NHE from MHE (areas under the curve = 0.859, 0.655, and 0.672, respectively).</p><p><strong>Conclusion: </strong>Our findings suggested dynamic brain network disorganization in MHE, which was associated with metabolic derangement and neurocognitive impairment.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142351049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spatial coefficient of variation of arterial spin labeling magnetic resonance imaging can predict decreased cerebrovascular reactivity measured by acetazolamide challenge single-photon emission tomography. 动脉自旋标记磁共振成像的空间变异系数可预测乙酰唑胺挑战单光子发射断层扫描测量到的脑血管反应性下降。
IF 2.4 3区 医学
Neuroradiology Pub Date : 2024-10-01 Epub Date: 2024-07-23 DOI: 10.1007/s00234-024-03431-x
Naoki Taira, Shoko Hara, Aya Namba, Yoji Tanaka, Taketoshi Maehara
{"title":"Spatial coefficient of variation of arterial spin labeling magnetic resonance imaging can predict decreased cerebrovascular reactivity measured by acetazolamide challenge single-photon emission tomography.","authors":"Naoki Taira, Shoko Hara, Aya Namba, Yoji Tanaka, Taketoshi Maehara","doi":"10.1007/s00234-024-03431-x","DOIUrl":"10.1007/s00234-024-03431-x","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this study was to investigate whether the spatial coefficient of variation of arterial spin labeling (ASL-CoV) acquired in clinical settings can be used to estimate decreased cerebrovascular reactivity (CVR) measured with single-photon emission computed tomography (SPECT) and acetazolamide challenge in patients with atherosclerotic stenosis of intra- or extracranial arteries.</p><p><strong>Methods: </strong>We evaluated the data of 27 atherosclerotic stenosis patients who underwent pseudocontinuous ASL and SPECT. After spatial normalization, regional values were measured using the distributed middle cerebral artery territorial atlas of each patient. We performed comparisons, correlations, and receiver operating characteristic (ROC) curve analyses between ASL-cerebral blood blow (CBF), ASL-CoV, SPECT-CBF and SPECT-CVR.</p><p><strong>Results: </strong>Although the ASL-CBF values were positively correlated with SPECT-CBF values (r = 0.48, 95% confidence interval (CI) = 0.28-0.64), no significant difference in ASL-CBF values was detected between regions with and without decreased CVR. However, regions with decreased CVR had significantly greater ASL-CoV values than regions without decreased CVR. SPECT-CVR was negatively correlated with ASL-CoV (ρ = -0.29, 95% CI = -0.49 - -0.06). The area under the ROC curve of ASL-CoV in predicting decreased CVR (0.66, 95% CI = 0.51-0.81) was greater than that of ASL-CBF (0.51, 95% CI = 0.34-0.68). An ASL-CoV threshold value of 42% achieved a high specificity of 0.93 (sensitivity = 0.42, positive predictive value = 0.77, and negative predictive value = 0.75).</p><p><strong>Conclusion: </strong>ASL-CoV acquired by single postlabeling delay without an acetazolamide challenge may aid in the identification of patients with decreased CVR on SPECT.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141748678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Diffuse peritoneal dissemination of intracranial pure germinoma via ventriculoperitoneal shunt. 经脑室腹腔分流的颅内纯种生殖细胞瘤腹膜弥漫性播散。
IF 2.4 3区 医学
Neuroradiology Pub Date : 2024-10-01 Epub Date: 2024-06-19 DOI: 10.1007/s00234-024-03409-9
Ryo Kurokawa, Shiori Amemiya, Mariko Kurokawa, Soma Onoda, Hirokazu Takami, Shunsaku Takayanagi, Masako Ikemura, Gakushi Yoshikawa, Osamu Abe
{"title":"Diffuse peritoneal dissemination of intracranial pure germinoma via ventriculoperitoneal shunt.","authors":"Ryo Kurokawa, Shiori Amemiya, Mariko Kurokawa, Soma Onoda, Hirokazu Takami, Shunsaku Takayanagi, Masako Ikemura, Gakushi Yoshikawa, Osamu Abe","doi":"10.1007/s00234-024-03409-9","DOIUrl":"10.1007/s00234-024-03409-9","url":null,"abstract":"<p><p>Germinomas frequently cause hydrocephalus, and ventriculoperitoneal shunts (VPS) have been commonly used for their management. Although VPS can potentially serve as a route for peritoneal dissemination of germinomas, the abdominal imaging characteristics of this rare yet important complication remain unknown. In this article, we report the computed tomography imaging findings of diffuse peritoneal dissemination of intracranial germinoma.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11424648/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141420068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cranial bone thickness and density anomalies quantified from CT images can identify chronic increased intracranial pressure. 通过 CT 图像量化的颅骨厚度和密度异常可确定慢性颅内压增高。
IF 2.4 3区 医学
Neuroradiology Pub Date : 2024-10-01 Epub Date: 2024-06-14 DOI: 10.1007/s00234-024-03393-0
Jiawei Liu, Jasmine Chaij, Marius George Linguraru, Brooke French, Robert Keating, Allyson L Alexander, Antonio R Porras
{"title":"Cranial bone thickness and density anomalies quantified from CT images can identify chronic increased intracranial pressure.","authors":"Jiawei Liu, Jasmine Chaij, Marius George Linguraru, Brooke French, Robert Keating, Allyson L Alexander, Antonio R Porras","doi":"10.1007/s00234-024-03393-0","DOIUrl":"10.1007/s00234-024-03393-0","url":null,"abstract":"<p><strong>Purpose: </strong>The diagnosis of chronic increased intracranial pressure (IIP)is often based on subjective evaluation or clinical metrics with low predictive value. We aimed to quantify cranial bone changes associated with pediatric IIP using CT images and to identify patients at risk.</p><p><strong>Methods: </strong>We retrospectively quantified local cranial bone thickness and mineral density from the CT images of children with chronic IIP and compared their statistical differences to normative children without IIP adjusting for age, sex and image resolution. Subsequently, we developed a classifier to identify IIP based on these measurements. Finally, we demonstrated our methods to explore signs of IIP in patients with non-syndromic sagittal craniosynostosis (NSSC).</p><p><strong>Results: </strong>We quantified a significant decrease of bone density in 48 patients with IIP compared to 1,018 normative subjects (P < .001), but no differences in bone thickness (P = .56 and P = .89 for age groups 0-2 and 2-10 years, respectively). Our classifier demonstrated 83.33% (95% CI: 69.24%, 92.03%) sensitivity and 87.13% (95% CI: 84.88%, 89.10%) specificity in identifying patients with IIP. Compared to normative subjects, 242 patients with NSSC presented significantly lower cranial bone density (P < .001), but no differences were found compared to patients with IIP (P = .57). Of patients with NSSC, 36.78% (95% CI: 30.76%, 43.22%) presented signs of IIP.</p><p><strong>Conclusion: </strong>Cranial bone changes associated with pediatric IIP can be quantified from CT images to support earlier diagnoses of IIP, and to study the presence of IIP secondary to cranial pathology such as non-syndromic sagittal craniosynostosis.</p>","PeriodicalId":19422,"journal":{"name":"Neuroradiology","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11424726/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141317926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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