Polish journal of radiology最新文献_第4页

Assessment of endodontic treatment and prevalence of apical periodontitis using cone-beam computed tomography: a cross-sectional study. 使用锥束计算机断层扫描评估牙髓治疗和根尖牙周炎的患病率：一项横断面研究。

Polish journal of radiology Pub Date : 2024-08-16 eCollection Date: 2024-01-01 DOI: 10.5114/pjr/190412

Katarzyna Lewusz-Butkiewicz, Kinga Kaczor-Wiankowska, Aleksandra Kulas-Bałaban, Elżbieta Kubala, Alicja Nowicka

{"title":"Assessment of endodontic treatment and prevalence of apical periodontitis using cone-beam computed tomography: a cross-sectional study.","authors":"Katarzyna Lewusz-Butkiewicz, Kinga Kaczor-Wiankowska, Aleksandra Kulas-Bałaban, Elżbieta Kubala, Alicja Nowicka","doi":"10.5114/pjr/190412","DOIUrl":"https://doi.org/10.5114/pjr/190412","url":null,"abstract":"Purpose: The purpose of this study was a retrospective cross-sectional study of the Polish subpopulation, performed to evaluate the quality of endodontic treatment (ET) and the condition of the periapical tissues of permanent teeth based on cone-beam computed tomography (CBCT) images.Material and methods: The retrospective study included a group of patients who underwent CBCT at the University Dental Clinic of the Pomeranian Medical University in Szczecin. An endodontically treated tooth index (ETTI) was used to evaluate ET. Once apical periodontitis was recognised, the size, extent, and ratio of adjacent anatomical structures were assessed using the complex periapical index (COPI).Results: Analysis of the CBCT images showed that ET was performed in 9.9% of the teeth examined, of which 52.7% of the canals were treated correctly, while 28.1% of the root canals were found to be underfilled, 6.8% were overfilled, 9.3% of the root canals were not obturated at all, and in 3.1% of the teeth examined, the filling material was only visible in the pulp chamber. Apical periodontitis was observed in 6% of all teeth examined, while the percentage of teeth following ET was 38.5%.Conclusions: The quality of the ET provided to the Polish subpopulation is unsatisfactory. Lack of root canal filling homogeneity is a significant risk factor for ET failure. Improper ET and poor quality of crown restoration after ET have an impact on the increased risk of occurrence, size, degree of root coverage, and extent of inflammatory periapical lesions in relation to adjacent anatomical structures.","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"89 ","pages":"e391-e401"},"PeriodicalIF":0.0,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11384213/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142305133","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}

引用次数: 0

Physiological changes in the mammary glands during a female's life. 女性一生中乳腺的生理变化。

Polish journal of radiology Pub Date : 2024-08-09 eCollection Date: 2024-01-01 DOI: 10.5114/pjr/189566

Krzysztof Katulski, Adam Katulski, Aleksandra Nykowska, Katarzyna Beutler, Krzysztof Kozielek, Sylwia Antczak, Katarzyna Katulska

{"title":"Physiological changes in the mammary glands during a female's life.","authors":"Krzysztof Katulski, Adam Katulski, Aleksandra Nykowska, Katarzyna Beutler, Krzysztof Kozielek, Sylwia Antczak, Katarzyna Katulska","doi":"10.5114/pjr/189566","DOIUrl":"https://doi.org/10.5114/pjr/189566","url":null,"abstract":"The intricate development and physiological dynamics of the mammary glands, orchestrated by a delicate interplay of hormones, are crucial for reproductive function and lactation. Beginning with intrauterine clusters evolving into mature glands, hormonal fluctuations throughout puberty and the menstrual cycle finely tune mammary tissue growth. Oestrogens stimulate the proliferation of epithelial cells, while progesterone orchestrates the formation of lactiferous glands. During pregnancy, oestrogen and progesterone induces hyperplasia of lobules and ducts, preparing the breast for lactation. Prolactin is vital for lactation and stimulates milk production during pregnancy and postpartum. As shown by ultrasonography, physiological changes during lactation reflect glandular tissue transformation for milk secretion. Clinical and physiological changes, including increased blood flow, contribute to mammary growth and firmness, complicating clinical examination. Ultrasonographic findings reveal variability in women's glandular and fat tissue distribution, suggesting that milk production is not solely determined by anatomical factors. Though not directly linked to milk production, blood flow dynamics hint at a threshold for optimal lactation. Understanding these complex hormonal and physiological mechanisms is crucial for comprehending mammary development, function, and clinical assessment.","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"89 ","pages":"e386-e390"},"PeriodicalIF":0.0,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11384216/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142305146","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}

引用次数: 0

¹H magnetic resonance spectroscopy in the differentiation between low- and high-grade cervical carcinoma: is it efficient? 1H 磁共振波谱在低级别和高级别宫颈癌鉴别中的应用：有效吗？

Polish journal of radiology Pub Date : 2024-08-05 eCollection Date: 2024-01-01 DOI: 10.5114/pjr/190840

Mohamed Ibrahim Amin, A El-Aziz I Amin, Shimaa Elsayed Badr, Noha Yahia Ebaid

{"title":"1H magnetic resonance spectroscopy in the differentiation between low- and high-grade cervical carcinoma: is it efficient?","authors":"Mohamed Ibrahim Amin, A El-Aziz I Amin, Shimaa Elsayed Badr, Noha Yahia Ebaid","doi":"10.5114/pjr/190840","DOIUrl":"https://doi.org/10.5114/pjr/190840","url":null,"abstract":"Purpose: To evaluate the extent to which magnetic resonance spectroscopy (MRS) lipid metabolites are accurate in predicting high-grade cervical cancer.Material and methods: This prospective single-centre pilot study included 20 cases with pathologically proven cervical cancer. They underwent pelvic magnetic resonance imaging (MRI) with MRS. Two radiologists, blinded to the histopathological results, with 10 years of experience in gynaecological imaging, independently analysed the MRI images and MRS curves, and a third one resolved any disagreement. Using the histopathological results as a standard test, the receiver operating characteristics (ROC) curve was utilised to calculate the optimal lipid peak (1.3 ppm) cutoff for predicting high-grade cervical cancer. The difference in MRS metabolites between low- and high-grade cervical cancer groups was estimated using the Mann-Whitney test.Results: The study included 11 high-grade and nine low-grade cervical cancer cases based on the histopathological evaluation. A lipid (1.3 ppm) peak of 29.9 was the optimal cutoff for predicting high-grade cervical cancer with 100% sensitivity, 77.8%, specificity, and 90% accuracy. Moreover, there was a significant difference between low- and high-grade cervical cancer cases concerning lipid peak at 0.9 ppm, lipid peak at 1.3 ppm, and the peak of choline with (p-value 0.025, 0.001, and 0.023), respectively.Conclusions: MRS might be considered a useful imaging technique for assessing the grade of cervical cancer and improving the planning of treatment. It shows a good diagnostic accuracy. Therefore, it can be adopted in clinical practice for better patient outcome.","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"89 ","pages":"e378-e385"},"PeriodicalIF":0.0,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11384214/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142305131","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}

引用次数: 0

Leveraging smart image processing techniques for early detection of foot ulcers using a deep learning network. 利用智能图像处理技术，使用深度学习网络早期检测足部溃疡。

Polish journal of radiology Pub Date : 2024-07-31 eCollection Date: 2024-01-01 DOI: 10.5114/pjr/189412

Garima Verma

{"title":"Leveraging smart image processing techniques for early detection of foot ulcers using a deep learning network.","authors":"Garima Verma","doi":"10.5114/pjr/189412","DOIUrl":"10.5114/pjr/189412","url":null,"abstract":"Purpose: To detect foot ulcers in diabetic patients by analysing thermal images of the foot using a deep learning model and estimate the effectiveness of the proposed model by comparing it with some existing studies.Material and methods: Open-source thermal images were used for the study. The dataset consists of two types of images of the feet of diabetic patients: normal and abnormal foot images. The dataset contains 1055 total images; among these, 543 are normal foot images, and the others are images of abnormal feet of the patient. The study's dataset was converted into a new and pre-processed dataset by applying canny edge detection and watershed segmentation. This pre-processed dataset was then balanced and enlarged using data augmentation, and after that, for prediction, a deep learning model was applied for the diagnosis of an ulcer in the foot. After applying canny edge detection and segmentation, the pre-processed dataset can enhance the model's performance for correct predictions and reduce the computational cost.Results: Our proposed model, utilizing ResNet50 and EfficientNetB0, was tested on both the original dataset and the pre-processed dataset after applying edge detection and segmentation. The results were highly promising, with ResNet50 achieving 89% and 89.1% accuracy for the two datasets, respectively, and EfficientNetB0 surpassing this with 96.1% and 99.4% accuracy for the two datasets, respectively.Conclusions: Our study offers a practical solution for foot ulcer detection, particularly in situations where expert analysis is not readily available. The efficacy of our models was tested using real images, and they outperformed other available models, demonstrating their potential for real-world application.","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"89 ","pages":"e368-e377"},"PeriodicalIF":0.0,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11321030/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141977594","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}

引用次数: 0

Comparison of preoperative diagnostic performance between dual-energy CT, conventional CT, and MRI in endometrial cancer. 双能 CT、传统 CT 和核磁共振成像对子宫内膜癌术前诊断效果的比较。

Polish journal of radiology Pub Date : 2024-07-26 eCollection Date: 2024-01-01 DOI: 10.5114/pjr/189487

Miki Yoshida, Tsukasa Saida, Kensaku Mori, Sodai Hoshiai, Masafumi Sakai, Taishi Amano, Saki Shibuki, Mariko Miyata, Toyomi Sato, Takahito Nakajima

{"title":"Comparison of preoperative diagnostic performance between dual-energy CT, conventional CT, and MRI in endometrial cancer.","authors":"Miki Yoshida, Tsukasa Saida, Kensaku Mori, Sodai Hoshiai, Masafumi Sakai, Taishi Amano, Saki Shibuki, Mariko Miyata, Toyomi Sato, Takahito Nakajima","doi":"10.5114/pjr/189487","DOIUrl":"10.5114/pjr/189487","url":null,"abstract":"Purpose: To compare the diagnostic performance of virtual monoenergetic imaging (VMI), computed tomography (CT), and magnetic resonance imaging (MRI) in patients with endometrial cancer (EC).Material and methods: This retrospective study analysed 45 EC patients (mean age: 62 years, range: 44-84 years) undergoing contrast-enhanced CT with dual-energy CT (DECT) and MRI between September 2021 and October 2022. Dual-energy CT generated conventional CT (C-CT) and 40 keV VMI. Quantitative analysis compared contrast-to-noise ratio (CNR) of tumour to myometrium between C-CT and VMI. Qualitative assessment by 5 radiologists compared C-CT, VMI, and MRI for myometrial invasion (MI), cervical invasion, and lymph node metastasis. Sensitivity, specificity, accuracy, and area under the receiver operating characteristic curve (AUC) were calculated and compared for each diagnostic parameter.Results: Virtual monoenergetic imaging showed significantly higher CNR than C-CT (p < 0.001) and a higher sensitivity for MI than C-CT (p = 0.027) and MRI (p = 0.011) but lower specificity than MRI (p = 0.018). C-CT had a higher sensitivity and AUC for cervical invasion than MRI (p = 0.018 and 0.004, respectively).Conclusions: The study found no significant superiority of MRI over CT across all diagnostic parameters. VMI demonstrated heightened sensitivity for MI, and C-CT showed greater sensitivity and AUC for cervical invasion than MRI. This suggests that combining VMI with C-CT holds promise as a comprehensive preoperative staging tool for EC when MRI cannot be performed.","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"89 ","pages":"e358-e367"},"PeriodicalIF":0.0,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11321031/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141977593","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}

引用次数: 0

Imaging modalities in neurolisteriosis: a literature review 神经李斯特菌病的成像模式：文献综述

Polish journal of radiology Pub Date : 2024-07-19 DOI: 10.5114/pjr/189214

Radosław Zawadzki, Weronika Rogalska, Marianna Pałdyna, Dominika Głuszczuk, Joanna Zajkowska, Bożena Kubas

{"title":"Imaging modalities in neurolisteriosis: a literature review","authors":"Radosław Zawadzki, Weronika Rogalska, Marianna Pałdyna, Dominika Głuszczuk, Joanna Zajkowska, Bożena Kubas","doi":"10.5114/pjr/189214","DOIUrl":"https://doi.org/10.5114/pjr/189214","url":null,"abstract":"Listeriosis caused by Listeria monocytogenes due to its ability to withstand harsh conditions and form biofilms on post-processed food poses a serious public health issue. It typically manifests itself with fever and gastrointestinal symptoms, but it can escalate with life-threatening conditions, especially in immunocompromised patients, the elderly, oncologically sick, and even pregnant women. The diagnosis is based on blood and cerebrospinal fluid culture growth, but it presents significant challenges due to deceptive findings and low positivity rates, the golden standard includes molecular diagnostic tests such as real-time PCR and metagenomic next-generation sequencing, which offer higher sensitivity and rapid detection. Radiological imaging, particularly magnetic resonance imaging, can play a crucial role in diagnosis of central nervous system (CNS) invasion by L. monocytogenes, enabling the detection of characteristic CNS lesions. The aim of the paper was to sum up the imaging features of L. monocytogenes CNS invasions in conventional imaging techniques, which can potentially speed up the diagnostic workflow for patients presenting with neurological symptoms associated with L. monocytogenes infection, particularly when conventional tests yield inconclusive results.","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":" 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141822979","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}

引用次数: 0

Assessment of prevalence of vascular contact of the facial nerve in asymptomatic patients using three-dimensional constructive interference in steady-state (3D CISS) MRI acquisition 利用三维稳态建设性干扰（3D CISS）磁共振成像采集技术评估无症状患者面神经血管接触的发生率

Polish journal of radiology Pub Date : 2024-07-17 DOI: 10.5114/pjr/189274

S. H., N. G., Sushmitha Puttappa Shivagange, H. T., M. S.

{"title":"Assessment of prevalence of vascular contact of the facial nerve in asymptomatic patients using three-dimensional constructive interference in steady-state (3D CISS) MRI acquisition","authors":"S. H., N. G., Sushmitha Puttappa Shivagange, H. T., M. S.","doi":"10.5114/pjr/189274","DOIUrl":"https://doi.org/10.5114/pjr/189274","url":null,"abstract":"To evaluate the prevalence of vascular contact of the facial nerve in patients without hemifacial spasm or facial palsy using magnetic resonance imaging (MRI).Our radiology database was accessed to find a series of consecutive adult patients who underwent MRI of the brain during the study period, excluding those with a history of hemifacial spasm (HFS), facial palsy, traumatic brain injury, intracranial tumour, intracranial surgery, trigeminal neuro-vascular compression, brain radiation therapy, and studies with poor image quality. A total of 112 (224 sides) MRIs of the posterior fossa were independently reviewed by 2 radiologists for neurovascular contact involving the facial nerve. The presence of neuro-vascular contact, the number of points of contact, the location of contact along the intracranial course of the facial nerve, the culprit vessel, and the severity of compression were recorded in the CISS MRI sequence in the cohort of patients without HFS and facial palsy.The prevalence of neurovascular contact involving the facial nerve can be as high as 51% in patients asymptomatic for HFS and facial palsy. It is frequently caused by the anterior inferior cerebellar artery and commonly involves the cisternal portion with mild to moderate severity.In asymptomatic patients, the pulsatile neurovascular contact of the intracranial segment of the facial nerve typically occurs at one point, involving the distal portion with milder severity in contrast to patients with HFS. These results in the asymptomatic cohort should be considered when evaluating the candidacy of HFS patients for microvascular decompression.","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":" 28","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141829796","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}

引用次数: 0

Brain neuroplasticity in multiple sclerosis patients in functional magnetic resonance imaging studies. Part 2: Effect of aerobic training 功能磁共振成像研究中多发性硬化症患者的脑神经可塑性。第二部分：有氧训练的效果

Polish journal of radiology Pub Date : 2024-07-12 DOI: 10.5114/pjr/189251

M. Wachowski, M. Majos, Marta Milewska-Jędrzejczak, Andrzej Głąbiński, Agata Majos

{"title":"Brain neuroplasticity in multiple sclerosis patients in functional magnetic resonance imaging studies. Part 2: Effect of aerobic training","authors":"M. Wachowski, M. Majos, Marta Milewska-Jędrzejczak, Andrzej Głąbiński, Agata Majos","doi":"10.5114/pjr/189251","DOIUrl":"https://doi.org/10.5114/pjr/189251","url":null,"abstract":"The aim of this study was to evaluate the effects of aerobic training on motor cortical areas in multiple sclerosis (MS) patients, based on task-based functional magnetic resonance imaging (t-fMRI) as well as on brain activity at rest, according to resting state functional MRI (rs-fMRI) studies.Multiple sclerosis patients were divided into 2 groups consisting of 14 participants each: the MS study group and the MS control group. All MS patients underwent clinical assessment and MRI examination, twice: \u0000in the MS study group at the time of inclusion in the study and after a 4-week period of aerobic training, whereas in the MS control group it happened at the time of inclusion and after a period of one month without exercise rehabilitation. The MRI study protocol included rs-fMRI and t-fMRI sequences, which were the grounds for an analysis of resting state networks (RSN) as well as peak level and cluster level parameters within motor cortex areas – the primary motor cortex, premotor area, and supplementary motor area, respectively.In the MS study group, aerobic training improved the clinical condition and decreased the functional correlation between the sensorimotor network and the salience network. Also, significant decreases of the mean cluster level (72.42 vs. 38.35) and peak level values (10.89 vs. 7.64) were observed in the contralateral primary motor cortex in this group of patients between examinations.Aerobic training not only improves physical performance but also contributes to changes in brain activity – both within RSN and motor cortex areas in MS patients.","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"34 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141654083","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}

引用次数: 0

The utility of virtual monochromatic dual-energy computed tomography (DECT) in meniscal imaging: a technical evaluation 虚拟单色双能计算机断层扫描（DECT）在半月板成像中的应用：技术评估

Polish journal of radiology Pub Date : 2024-07-08 DOI: 10.5114/pjr/187934

Scott J. Adams, Jacques van Heerden, Jodie Reis, Prosanta Mondal, Michael Shepel, Haron Obaid

{"title":"The utility of virtual monochromatic dual-energy computed tomography (DECT) in meniscal imaging: a technical evaluation","authors":"Scott J. Adams, Jacques van Heerden, Jodie Reis, Prosanta Mondal, Michael Shepel, Haron Obaid","doi":"10.5114/pjr/187934","DOIUrl":"https://doi.org/10.5114/pjr/187934","url":null,"abstract":"To determine the feasibility of meniscal imaging using virtual monochromatic images obtained through dual-energy computed tomography (DECT) technique, and to determine which keV levels optimise contrast resolution.All DECT exams were performed on a Discovery CT750 HD system from GE Healthcare. Virtual monochromatic images were reconstructed at 40 keV, 73 keV, 106 keV, and 139 keV. Contrast resolution of the medial and lateral menisci using a 5-point Likert scale at each keV level was determined through a consensus agreement by 2 fellowship-trained musculoskeletal radiologists. Friedman’s and Wilcoxon signed rank tests were used to compare visualisation scores across different keV levels.Seventeen knee exams from 10 patients met criteria for inclusion in the study. All patients included in the study cohort were male. The median age of patients was 46 years (interquartile range, 35-53 years). Virtual monochromatic images at 40 keV demonstrated highest contrast resolution of the menisci, with a statistically significant difference between contrast resolution scores at 40 keV and 76 keV, Friedman test: p < 0.0001.Meniscal imaging is feasible using DECT virtual monochromatic images at low keV levels. Improved contrast resolution at these specified KeV values could pave the way for further research in this field to determine its role in the future as an alternative option for assessment of the menisci in patients with contraindications to MRI or in the setting of a periarticular ferromagnetic foreign body obscuring the field of view.","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":" 33","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141669859","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}

引用次数: 0

Morphological evaluation of maxillary arch in unilateral buccally and palatally impacted canines: a cone-beam computed tomography (CBCT)-based study in Northern Iran. 单侧颊颌和腭颌阻生犬齿的上颌牙弓形态学评估：基于锥形束计算机断层扫描（CBCT）的伊朗北部研究。

Polish journal of radiology Pub Date : 2024-06-28 eCollection Date: 2024-01-01 DOI: 10.5114/pjr/188686

Sepideh Dadgar, Mehdi Aryana, Mehdi Khorankeh, Melika Mollaei, Reza Alizadeh-Navaei, Farhad Sobouti

{"title":"Morphological evaluation of maxillary arch in unilateral buccally and palatally impacted canines: a cone-beam computed tomography (CBCT)-based study in Northern Iran.","authors":"Sepideh Dadgar, Mehdi Aryana, Mehdi Khorankeh, Melika Mollaei, Reza Alizadeh-Navaei, Farhad Sobouti","doi":"10.5114/pjr/188686","DOIUrl":"10.5114/pjr/188686","url":null,"abstract":"Purpose: This study investigated the association between the maxillary impacted canines' position and the maxilla's morphological features in an Iranian population based on cone-beam computed tomography (CBCT) images.Material and methods: In this cross-sectional descriptive-analytical study, 47 CBCT images of unilateral buccally impacted maxillary canines and 47 CBCT images of unilateral palatally impacted maxillary canines were examined. Several morphological variables were compared between the impacted and non-impacted sides, and between the buccal and palatal impaction types.Results: Gender and age were not significantly associated with the canine impaction type. The alveolar bone height at the impacted side was significantly greater in the buccally impacted group than in the palatally impacted group (p = 0.016). In a comparison of the impacted and non-impacted sides, all variables of alveolar bone thickness at depth of 2 mm, maxillary arch width, and palatal volume had significantly smaller values in the impacted side in both buccally and palatally impacted groups (p < 0.05). The alveolar bone was significantly thicker at the depth of 10 mm in the impacted side of the buccal group (p = 0.024). The maxillary arch perimeter was significantly smaller in the impacted side of the buccal group (p = 0.008). The palatal depth did not significantly differ between the groups.Conclusion: Among the studied variables, the alveolar bone thickness showed contrary results at different depths. The palatal volume and maxillary arch width were significantly smaller on the impacted side in both buccal and palatal groups, and the arch perimeter showed the same results only in the buccal group.","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"89 ","pages":"e316-e323"},"PeriodicalIF":0.0,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11262013/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141750106","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}

引用次数: 0