Polish Journal of Radiology最新文献

{"title":"Endovascular treatment of middle cerebral artery aneurysms - single-centre results.","authors":"Paweł Brzegowy,&nbsp;Jakub Polak,&nbsp;Jakub Wnuk,&nbsp;Bartłomiej Łasocha,&nbsp;Borys Kwinta,&nbsp;Andrzej Urbanik,&nbsp;Tadeusz J Popiela","doi":"10.5114/pjr.2020.103204","DOIUrl":"https://doi.org/10.5114/pjr.2020.103204","url":null,"abstract":"<p><strong>Purpose: </strong>The middle cerebral artery (MCA) is the second most common location of intracerebral aneurysms. Traditionally, they are treated by microsurgical clipping, but with the development of new techniques and devices endovascular embolisation is gaining more importance. The aim of this study was to summarise six years of experience of our department in endovascular treatment of MCA aneurysms.</p><p><strong>Material and methods: </strong>Forty patients with 41 MCA aneurysms treated in a single centre were included in this study. Data on patients' comorbidities, aneurysm morphology, and treatment course were collected, with special emphasis on complications.</p><p><strong>Results: </strong>There were no statistically significant differences in terms of aneurysm morphology between males and females and between ruptured and unruptured aneurysms. None of the diseases analysed in the current study were linked with significantly increased risk of SAH. Unruptured aneurysms were significantly more frequently treated by stent-assisted coiling (30.4% vs. 5.6%, <i>p</i> = 0.0388) than were ruptured aneurysms, while ruptured aneurysms were treated more frequently by coiling alone (77.8% vs. 34.8%, <i>p</i> = 0.0062). After an initial course of treatment 63.4% (<i>n</i> = 26) of patients had class I in Raymond-Roy occlusion classification, 22% (<i>n</i> = 9) had class II, and 14.6% (<i>n</i> = 6) had class III. Complications of the procedure were observed in 17.5% (<i>n</i> = 7) of patients: 22.2% (<i>n</i> = 4) with ruptured and 13.6% (<i>n</i> = 3) with unruptured aneurysms.</p><p><strong>Conclusions: </strong>Endovascular treatment of MCA aneurysms is feasible, and our results are convergent with other studies. Ruptured MCA aneurysms may be treated endovascularly with similar effects as unruptured MCA aneurysms. The complication rate of such treatment is low.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":"85 ","pages":"e650-e656"},"PeriodicalIF":1.2,"publicationDate":"2020-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/1d/ce/PJR-85-43162.PMC7857335.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25343606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The risk of renal function deterioration in abdominal aortic stent graft patients with and without previous kidney function failure - an analysis of risk factors.","authors":"Tomasz Urbanek,&nbsp;Grzegorz Biolik,&nbsp;Wojciech Zelawski,&nbsp;Beata Hapeta,&nbsp;Maciej Jusko,&nbsp;Waclaw Kuczmik","doi":"10.5114/pjr.2020.102194","DOIUrl":"https://doi.org/10.5114/pjr.2020.102194","url":null,"abstract":"<p><strong>Purpose: </strong>Kidney failure influences the treatment outcomes of abdominal aortic aneurysm (AAA). A prospective study of renal function before and after aortic stent-graft treatment was performed. Special attention was paid to the influence of preoperative kidney function as well as the impact of the radiological follow-up.</p><p><strong>Material and methods: </strong>A total of 214 endovascularly treated AAA patients were included. In all cases, pre- and postope-rative estimated glomerular filtration rate (eGFR) and serum creatinine were noted. Patients were prospectively followed up for a minimum of two years.</p><p><strong>Results: </strong>The baseline eGFR was 69.38 ± 16.29 ml/min/1.73 m². Chronic kidney disease at baseline was noted in 29% of patients. In the direct postoperative period, acute kidney injury was identified in 8.4% of cases. Additional endo-vascular procedures within two years of observation were performed in 5.6% of cases, and over the two years of follow-up, in the study group from one to six angio-computed tomographic scans (angio-CT) per patient were performed. The mean eGFR value after the 24-month follow-up was significantly lower than the preoperative value. Among the factors influencing kidney function, an angio-CT during the same hospital stay of the primary stent-graft procedures was identified. The type of stent-graft, contrast volume during the primary procedure, need for reintervention, concomitant disease presence, and statin use did not show statistical significance.</p><p><strong>Conclusions: </strong>Angio-CT followed by stent-graft implantation over a short time interval (within the same hospitalisation) significantly worsened renal function in the late follow-up and should be avoided in elective AAA cases.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":"85 ","pages":"e643-e649"},"PeriodicalIF":1.2,"publicationDate":"2020-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/4b/63/PJR-85-42860.PMC7857334.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25343605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Utility of brain parenchyma density measurement and computed tomography perfusion imaging in predicting brain death.","authors":"Asli I Akdogan,&nbsp;Hilal Sahin,&nbsp;Yeliz Pekcevik,&nbsp;Hatice Uluer","doi":"10.5114/pjr.2020.101482","DOIUrl":"https://doi.org/10.5114/pjr.2020.101482","url":null,"abstract":"<p><strong>Purpose: </strong>To assess the utility of brain parenchyma density measurement on unenhanced computed tomography (CT) in predicting brain death (BD), in order to evaluate the added value of CT perfusion (CTP).</p><p><strong>Material and methods: </strong>A total of 77 patients who were clinically diagnosed as BD and had both CT angiography (CTA) and CTP imaging in the same session were retrospectively reviewed. On unenhanced phase of CTA, density measurement was performed from 23 regions of interests (ROIs) which were located in the following areas: level of basal ganglia (caudate nucleus, putamen, corpus callosum, posterior limb of internal capsule), level of brainstem, grey- white matters on levels of centrum semiovale (CS), high convexity (HC), and cerebellum. CTP images were evaluated qualitatively and independently. Grey matter (GM), white matter (WM), density, and GM/WM density ratio of BD patients were compared with control subjects.</p><p><strong>Results: </strong>Comparing with the normal control group, the GM and WM density at each level and GM/WM density ratio of CS, HC, and cerebellum level were significantly lower in brain-dead patients (<i>p</i> = 0.019 for HC-WM, <i>p</i> < 0.001 for other areas). Using ROC analysis, the highest value of area under curve (AUC) for the GM/WM density ratio was found at the HC level (AUC = 0.907). The sensitivity of the GM/WM density ratio at the HC level was found to be 90% when the cut-off value of 1.25 was identified. Evaluating the GM/WM density ratio together with the CTP results increased the sensitivity further to 98%.</p><p><strong>Conclusions: </strong>The GM/WM density ratio at the HC level on unenhanced CT may be a useful finding to predict BD. Also, the addition of CTP increases the sensitivity of this method.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":"85 ","pages":"e636-e642"},"PeriodicalIF":1.2,"publicationDate":"2020-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/27/2a/PJR-85-42608.PMC7757508.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38762258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intravoxel incoherent motion magnetic resonance imaging: basic principles and clinical applications.","authors":"Aleksandra E Szubert-Franczak,&nbsp;Martyna Naduk-Ostrowska,&nbsp;Katarzyna Pasicz,&nbsp;Joanna Podgórska,&nbsp;Witold Skrzyński,&nbsp;Andrzej Cieszanowski","doi":"10.5114/pjr.2020.101476","DOIUrl":"https://doi.org/10.5114/pjr.2020.101476","url":null,"abstract":"<p><p>The purpose of this article was to show basic principles, acquisition, advantages, disadvantages, and clinical applications of intravoxel incoherent motion (IVIM) magnetic resonance imaging (MRI). IVIM MRI as a method was introduced in the late 1980s, but recently it started attracting more interest thanks to its applications in many fields, particularly in oncology and neuroradiology. This imaging technique has been developed with the objective of obtaining not only a functional analysis of different organs but also different types of lesions. Among many accessible tools in diagnostic imaging, IVIM MRI aroused the interest of many researchers in terms of studying its applicability in the evaluation of abdominal organs and diseases. The major conclusion of this article is that IVIM MRI seems to be a very auspicious method to investigate the human body, and that nowadays the most promising clinical application for IVIM perfusion MRI is oncology. However, due to lack of standardisation of image acquisition and analysis, further studies are needed to validate this method in clinical practice.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":"85 ","pages":"e624-e635"},"PeriodicalIF":1.2,"publicationDate":"2020-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/9f/ec/PJR-85-42604.PMC7757509.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38762257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The spectrum of multimodality imaging findings in hepatic alveolar echinococcosis and the potential role of diffusion-weighted imaging in its characterisation.","authors":"Arshed H Parry,&nbsp;Abdul H Wani,&nbsp;Imza Feroz","doi":"10.5114/pjr.2020.101015","DOIUrl":"https://doi.org/10.5114/pjr.2020.101015","url":null,"abstract":"<p><strong>Purpose: </strong>To study the spectrum of imaging findings in hepatic alveolar echinococcosis (HAE) and to evaluate the potential role of diffusion-weighted imaging (DWI) in its characterisation.</p><p><strong>Material and methods: </strong>Two radiologists with more than seven years of experience retrospectively studied ultrasonography, computed tomography (CT), and magnetic resonance imaging (MRI) findings in 23 histopathologically proven cases of HAE with emphasis on the appearance and extent of disease. DWI characteristics of lesions were noted, and their apparent diffusion values (ADC) were calculated.</p><p><strong>Results: </strong>Ultrasonography features of HAE included heterogeneous, hyperechoic hepatic mass with or without calcification (<i>n</i> = 20), or heterogeneous mass with solid-cystic appearance (<i>n</i> = 2). CT revealed heterogeneous density infiltrative hepatic mass with no contrast enhancement in 19 patients or thick-walled cystic mass (<i>n</i> = 4). Following Kodama classification one type 1, six type 2, two type 3, eight type 4, and two type 5 lesions were identified on T2-weighted MRI. No enhancement was seen on post-contrast T1-weighted images. Mean ADC values were 1.74 ± 0.48 × 10^-3 mm²/s (range: 1.39 × 10^-3 mm²/s to 2.3 × 10^-3 mm²/s).</p><p><strong>Conclusions: </strong>HAE by virtue of its infiltrative growth pattern with a tendency to involve biliary, vascular, and extra hepatic structures can be easily misdiagnosed as malignant hepatic neoplasm. Knowledge of varied imaging appearances of HAE is essential to suspect the condition and to make an appropriate diagnosis. Diffusion-weighted imaging is a useful adjunct with relatively high diffusivity (high ADC values) suggesting diagnosis of alveolar hydatid.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":"85 ","pages":"e613-e623"},"PeriodicalIF":1.2,"publicationDate":"2020-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/bd/85/PJR-85-42479.PMC7757515.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38762859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of pulmonary regurgitation on right ventricular size and function in patients with repaired tetralogy of Fallot and additional haemodynamic abnormalities.","authors":"Mateusz Śpiewak,&nbsp;Joanna Petryka-Mazurkiewicz,&nbsp;Łukasz Mazurkiewicz,&nbsp;Barbara Miłosz-Wieczorek,&nbsp;Mirosław Kowalski,&nbsp;Elżbieta K Biernacka,&nbsp;Piotr Hoffman,&nbsp;Magdalena Marczak","doi":"10.5114/pjr.2020.101058","DOIUrl":"https://doi.org/10.5114/pjr.2020.101058","url":null,"abstract":"<p><strong>Purpose: </strong>Right ventricular (RV) outflow tract obstruction (RVOTO) was demonstrated to be protective against RV dilatation in patients with repaired tetralogy of Fallot and chronic pulmonary regurgitation (PR). We hypothesised that the presence of additional haemodynamic abnormalities (more than mild tricuspid regurgitation, residual ventricular septal defect) reduces this protective association. Accordingly, we aimed to assess the impact of PR on RV size and function in this population.</p><p><strong>Material and methods: </strong>Consecutive patients with additional haemodynamic abnormalities after tetralogy of Fallot (TOF) repair, who had undergone cardiovascular magnetic resonance, were included.</p><p><strong>Results: </strong>Out of 90 patients studied, 18 individuals (mean age 32.5 ± 10.7 years, 72.2% males) met the inclusion criteria. There were no differences in RV volumes and ejection fraction between patients with and without RVOTO. Neither PR fraction (PRF) nor PR volume (PRV) correlated with RV end-diastolic volume (<i>r</i> = 0.36; <i>p</i> = 0.15 and <i>r</i> = 0.37; <i>p</i> = 0.14, respectively, for PRF and PRV) or RV end-systolic volume (<i>r</i> = 0.2; <i>p</i> = 0.42 and <i>r</i> = 0.19; <i>p</i> = 0.45, respectively, for PRF and PRV). Similarly, no significant correlations were observed between PRF or PRV and RV ejection fraction (<i>r</i> = -0.04; <i>p</i> = 0.87 and <i>r</i> = -0.03; <i>p</i> = 0.9, respectively).</p><p><strong>Conclusions: </strong>Additional haemodynamic abnormalities are associated with the abolition of the protective effect of RVOTO on RV size. There was no significant relationship between measures of PR and RV volumes in patients after TOF repair with concomitant haemodynamic abnormalities. These abnormalities acted as confounding factors in the assessment of the impact of pulmonary regurgitation on RV size and function.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":"85 ","pages":"e607-e612"},"PeriodicalIF":1.2,"publicationDate":"2020-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/fb/42/PJR-85-42485.PMC7757502.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38762858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Is lung density associated with severity of COVID-19?","authors":"Keno K Bressem, Lisa C Adams, Jakob Albrecht, Antonie Petersen, Hans-Martin Thieß, Alexandra Niehues, Stefan M Niehues, Janis L Vahldiek","doi":"10.5114/pjr.2020.100788","DOIUrl":"10.5114/pjr.2020.100788","url":null,"abstract":"<p><strong>Purpose: </strong>Emphysema and chronic obstructive lung disease were previously identified as major risk factors for severe disease progression in COVID-19. Computed tomography (CT)-based lung-density analysis offers a fast, reliable, and quantitative assessment of lung density. Therefore, we aimed to assess the benefit of CT-based lung density measurements to predict possible severe disease progression in COVID-19.</p><p><strong>Material and methods: </strong>Thirty COVID-19-positive patients were included in this retrospective study. Lung density was quantified based on routinely acquired chest CTs. Presence of COVID-19 was confirmed by reverse transcription polymerase chain reaction (RT-PCR). Wilcoxon test was used to compare two groups of patients. A multivariate regression analysis, adjusted for age and sex, was employed to model the relative increase of risk for severe disease, depending on the measured densities.</p><p><strong>Results: </strong>Intensive care unit (ICU) patients or patients requiring mechanical ventilation showed a lower proportion of medium- and low-density lung volume compared to patients on the normal ward, but a significantly larger volume of high-density lung volume (12.26 dl IQR 4.65 dl vs. 7.51 dl vs. IQR 5.39 dl, <i>p</i> = 0.039). In multivariate regression analysis, high-density lung volume was identified as a significant predictor of severe disease.</p><p><strong>Conclusions: </strong>The amount of high-density lung tissue showed a significant association with severe COVID-19, with odds ratios of 1.42 (95% CI: 1.09-2.00) and 1.37 (95% CI: 1.03-2.11) for requiring intensive care and mechanical ventilation, respectively. Acknowledging our small sample size as an important limitation; our study might thus suggest that high-density lung tissue could serve as a possible predictor of severe COVID-19.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":"85 ","pages":"e600-e606"},"PeriodicalIF":1.2,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/61/f0/PJR-85-42392.PMC7654311.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38613576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Is it possible to predict the side of hepatic metastases according to the primary location of colorectal cancer?","authors":"Ayşegül Gürsoy Çoruh, Çağlar Uzun, Esra Bozca, Büşra Bozca, İhsan Batuhan Demir, Hilal Gülseren Atasever, Berna Göçtürk, Batuhan Bakırarar, Cihangir Akyol","doi":"10.5114/pjr.2020.99848","DOIUrl":"10.5114/pjr.2020.99848","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this study was to investigate the impact of the primary location of colorectal adenocarcinoma on the lobar distribution of its hepatic metastases based on the streamline hypothesis.</p><p><strong>Material and methods: </strong>The hospital database was utilised to identify the colorectal cancer patients. Eighty-six patients diagnosed with colorectal adenocarcinoma, who had hepatic metastases on the initial diagnostic stage or on the follow-up investigations, were enrolled the study. Computed tomography (CT) images of the study population were reviewed for the primary location of the colorectal tumour, and the side and number of hepatic metastases.</p><p><strong>Results: </strong>A total of 481 metastases were counted on CT from 22 right-sided and 64 left-sided colon tumours. The ratio of right-to-left hemiliver involvement was 1.97 : 1 for whole study population. The right-to-left ratio was calculated as 1.55 : 1 for right colon tumours and 2.17 : 1 for left colon tumours (<i>p</i> = 0.106). In the subgroup analysis with unilobar metastatic patients, again there was no significant difference in terms of the colorectal tumours' primary location (<i>p</i> = 0.325).</p><p><strong>Conclusions: </strong>The lobar distribution of hepatic metastases from colorectal adenocarcinoma may not be associated with the primary tumour localisation.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":"85 ","pages":"e595-e599"},"PeriodicalIF":1.2,"publicationDate":"2020-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/da/6d/PJR-85-42037.PMC7654317.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38613575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correlation of texture feature analysis with bone marrow infiltration in initial staging of patients with lymphoma using ¹⁸F-fluorodeoxyglucose positron emission tomography combined with computed tomography.","authors":"Mahmoud A Kenawy,&nbsp;Magdy M Khalil,&nbsp;Mahmoud H Abdelgawad,&nbsp;H H El-Bahnasawy","doi":"10.5114/pjr.2020.99833","DOIUrl":"https://doi.org/10.5114/pjr.2020.99833","url":null,"abstract":"<p><strong>Purpose: </strong>To explore whether radiomic features of fluorine-18-fluorodeoxyglucose (¹⁸F-FDG) positron emission tomo-graphy-computed tomography (PET/CT) has association with bone marrow infiltration (BMI) in comparison to other conventional PET metrics.</p><p><strong>Material and methods: </strong>Forty-four patients (with pathologically proven lymphoma disease) underwent staging ¹⁸F-FDG PET/CT scan. Primary tumour was semi-automatically or manually segmented with a threshold standardised uptake value (SUV) of 3. A total of 73 features were extracted from eight different textures. Spearman correlation was used to test the correlation of features with conventional quantitative metrics such as SUV, metabolic tumour volume, and total lesion glycolysis. Specificity and sensitivity (including 95% confidence intervals [CI]) for each of the studied parameters were derived using receiver operative characteristic (ROC) curves. Univariate and multivariate analyses were used to identify independent predictors associated with BMI.</p><p><strong>Results: </strong>Correlation between conventional PET metrics and features ranged between 0.50 and 0.97 for positive correlation (33 significant association features) and ranged from -0.52 to -0.97 for inverse correlation (three significant association features) for both strong and moderate correlations. Analysis of ROC curves showed that high-intensity long-run emphasis 4 bin, high-intensity large zone emphasis 64 bin, long-run emphasis (LRE) 64 bin, large-zone emphasis 64 bin, max spectrum 8 bin, busyness 64 bin, and code similarity 32 and 64 bin were significant discriminators of BMI among other features (area under curve > 0.682, <i>p</i> < 0.05). Univariate analyses of texture features showed that code similarity and long-run emphasis (both 64 bin) were significant predictors of bone marrow involvement. Multivariate analyses revealed that LRE (64 bin, <i>p</i> = 0.031) with an odds ratio of 1.022 and 95% CI of (1.002-1.043) were independent variables for bone marrow involvement.</p><p><strong>Conclusions: </strong>¹⁸F-FDG PET/CT radiomic features are synergistic to visual assessment of BMI in patients diagnosed with lymphoma using ¹⁸F-FDG PET/CT. Further assessment of long-run emphasis is highly warranted.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":"85 ","pages":"e586-e594"},"PeriodicalIF":1.2,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/02/14/PJR-85-42035.PMC7654316.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38613574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comparative evaluation of the Eustachian tube cartilage between healthy and diseased ears using a 3 Tesla MRI.","authors":"Nevin Aydın,&nbsp;Suzan Saylısoy,&nbsp;Baki Adapınar,&nbsp;Didem Arslantas","doi":"10.5114/pjr.2020.99756","DOIUrl":"https://doi.org/10.5114/pjr.2020.99756","url":null,"abstract":"<p><strong>Purpose: </strong>The purpose of this study was to prospectively assess the Eustachian tube (ET) cartilage using 3 Tesla (3T) magnetic resonance imaging (MRI) and compare the results between healthy ears and those with a middle ear disease.</p><p><strong>Material and methods: </strong>The study included 56 ears with a middle ear disease as the patient group and 100 ears without a middle ear disease as the control group. The patients' age ranged from 18 to 65 years. The axial three-dimensional (3D) multiple echo recombined gradient echo (MERGE) sequence and oblique parasagittal planes were obtained. Visualisation of the ET cartilage was assessed on the MR images using a three-point numerical rating score. In the axial plane, the ET lumen's diameter was measured from the mid-portion of the cartilage.</p><p><strong>Results: </strong>There was no significant difference between the patient group and the control group according to patients' age and gender, and the medial laminal thickness of the ET cartilage. In the patient group, the diameter of the ET cartilage was significantly smaller than in the control group. The ET lumen diameter was significantly lower according to each of the three scoring systems.</p><p><strong>Conclusions: </strong>3T MRI provides an evaluation of the ET cartilage and isthmus level, which are small but important anatomical localisations and surgical landmarks. MR imaging has the potential to provide essential information on ET prior to new surgical treatments, such as balloon dilation for middle ear diseases.</p>","PeriodicalId":47128,"journal":{"name":"Polish Journal of Radiology","volume":"85 ","pages":"e581-e585"},"PeriodicalIF":1.2,"publicationDate":"2020-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/b5/9f/PJR-85-42015.PMC7654315.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38613573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}