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Role of the masseter, anterior temporalis, and sternocleidomastoid muscles in myofascial temporomandibular disorder pain: evaluation of thickness and stiffness by ultrasonography. 咬肌、颞前肌和胸锁乳突肌在肌筋膜颞下颌紊乱疼痛中的作用:超声检查厚度和硬度的评价。
IF 1.6 3区 医学
Oral Radiology Pub Date : 2025-07-01 Epub Date: 2025-02-12 DOI: 10.1007/s11282-025-00807-4
Fatma Akkoca, Seher Ozyurek, Gunnur Ilhan, Emre Koyuncu, Melih Ozdede
{"title":"Role of the masseter, anterior temporalis, and sternocleidomastoid muscles in myofascial temporomandibular disorder pain: evaluation of thickness and stiffness by ultrasonography.","authors":"Fatma Akkoca, Seher Ozyurek, Gunnur Ilhan, Emre Koyuncu, Melih Ozdede","doi":"10.1007/s11282-025-00807-4","DOIUrl":"10.1007/s11282-025-00807-4","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to compare the thickness and stiffness of the masseter, anterior temporalis, and sternocleidomastoid muscles of patients diagnosed with myofascial temporomandibular disorders (TMD) pain to those of a control group.</p><p><strong>Methods: </strong>This was a cross-sectional study conducted at a single center. Twenty-five patients diagnosed with myofascial TMD pain and 29 asymptomatic controls (Control Group) matched by age and sex were recruited. B-mode ultrasonography and shear wave elastography were used to measure the thickness and stiffness of the bilateral masseter, temporalis, and sternocleidomastoid muscles. All measurements were performed while resting and clenching. Patients were systematically evaluated for pain intensity and maximum mouth opening.</p><p><strong>Results: </strong>There were no differences between groups in the resting and clenching thickness of any muscles (p > 0.05). There were no differences in the stiffness of the measured muscles at rest and clench between the groups, except for the masseter (p > 0.05). Individuals with myofascial TMD pain showed higher median stiffness in the right (p < 0.001) and left (p = 0.003) masseter muscles during clenching (but not during resting) compared with controls.</p><p><strong>Conclusions: </strong>Clenching masseter stiffness was greater in individuals with myofascial TMD pain than in asymptomatic controls. These findings might help to understand the jaw biomechanics and dysfunction of individuals with myofascial TMD pain.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"363-371"},"PeriodicalIF":1.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143400876","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
Association between CT image findings and hypoesthesia in the mental region and lower lip after dentigerous cyst removal: a retrospective study and literature review. 牙髓囊肿切除后CT图像表现与精神区及下唇感觉减退的关系:回顾性研究及文献复习。
IF 1.6 3区 医学
Oral Radiology Pub Date : 2025-07-01 Epub Date: 2025-03-05 DOI: 10.1007/s11282-025-00813-6
Shinichiro Yamada, Hizuru Osanai, Kozue Mori, Noriyuki Sugino, Akira Taguchi
{"title":"Association between CT image findings and hypoesthesia in the mental region and lower lip after dentigerous cyst removal: a retrospective study and literature review.","authors":"Shinichiro Yamada, Hizuru Osanai, Kozue Mori, Noriyuki Sugino, Akira Taguchi","doi":"10.1007/s11282-025-00813-6","DOIUrl":"10.1007/s11282-025-00813-6","url":null,"abstract":"<p><strong>Objectives: </strong>To evaluate the role of computed tomography (CT)/cone-beam computed beam CT (CBCT) in association with hypoesthesia of the mental region and lower lip during the surgical removal of DCs.</p><p><strong>Methods: </strong>A retrospective cohort study was performed involving 39 impacted mandibular DC cases between February 2011 and March 2022. We studied the association of hypoesthesia in relation to the age and sex of the patient and to growth direction and expansion of the DC on the CT/CBCT image findings. The preoperative CT/CBCT image findings were statistically analyzed in accordance with diagnoses of DCs confirmed based on pathology. Fisher's exact test was used to test the relationship between hypoesthesia and CT/CBCT imaging findings. In addition, PubMed and PubMed Central were searched using keywords such as \"hypoesthesia\" to find relevant studies. Reports of hypoesthesia of the mental region and lower lip were derived from the selected literature.</p><p><strong>Results: </strong>The frequency of hypoesthesia recorded was 35.9%. No statistically significant association was observed for all hypoesthesia and CT/CBCT image findings.</p><p><strong>Conclusions: </strong>Imaging evaluation was performed in 39 dentigerous cysts, and a literature review was performed. We found that CT/CBCT alone does not provide sufficiently reliable images required for predicting nerve lesions. Future prospective studies are required.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"414-420"},"PeriodicalIF":1.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143558867","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
Assessment of the correlation between the volume of tongue, oral cavity, tongue/oral cavity volume ratio and the upper airway in unilateral cleft subjects: A CBCT study. 单侧唇裂患者舌体积、口腔体积、舌/口腔体积比与上呼吸道的相关性评估:CBCT研究
IF 1.6 3区 医学
Oral Radiology Pub Date : 2025-07-01 Epub Date: 2025-01-16 DOI: 10.1007/s11282-024-00800-3
Fatemeh Akbarizadeh, Navid Fathi, Shahram Hamedani
{"title":"Assessment of the correlation between the volume of tongue, oral cavity, tongue/oral cavity volume ratio and the upper airway in unilateral cleft subjects: A CBCT study.","authors":"Fatemeh Akbarizadeh, Navid Fathi, Shahram Hamedani","doi":"10.1007/s11282-024-00800-3","DOIUrl":"10.1007/s11282-024-00800-3","url":null,"abstract":"<p><strong>Objectives: </strong>The current study was conducted to assess the volume of the tongue, oral cavity, and tongue/oral cavity and their correlation with the volume of the upper airway in cleft subjects compared with the control group.</p><p><strong>Methods: </strong>The study population included 60 CBCT images from dental school. The sample comprised 30 unilateral cleft patients and 30 sex and age-matched healthy subjects. The CBCT images were imported to the Mimics software in DICOM format. Then, the segmentation process was done in order to create distinct masks for the upper airway, oral cavity, and tongue. The software calculated the volume of the created masks.</p><p><strong>Results: </strong>The volume of tongue, oral and upper airway were significantly lower in cleft patients than in the control group (P value < 0.05 taken as statistically significant). There was a weak but statistically significant correlation between the U.A.W.V and T.V in both cleft and non-cleft subjects. Additionally, there was a statistically significant correlation between the O.C.V and the U.A.W.V in cleft subjects.</p><p><strong>Conclusions: </strong>Except than the proportion of tongue/oral cavity volume, other volumetric measurements were significantly lower in cleft subjects than control group. This reveals that clefts are not necessarily more susceptible to obstructive sleep apnea. Also, the positive correlation between the volume of the tongue and oral cavity with the upper airway confirms that early expansion of the maxillary region in clefts helps significantly in increasing their upper airway volume.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"320-330"},"PeriodicalIF":1.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143016967","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
Investigating the effectiveness of MAR algorithm on magnitude of artifacts in CBCT images: a systematic review. 研究MAR算法对CBCT图像中伪影大小的有效性:系统综述。
IF 1.6 3区 医学
Oral Radiology Pub Date : 2025-07-01 Epub Date: 2025-03-17 DOI: 10.1007/s11282-025-00815-4
Faezeh Yousefi, Younes Mohammadi, Kimia Nikikhah, Forough Abbasiyan
{"title":"Investigating the effectiveness of MAR algorithm on magnitude of artifacts in CBCT images: a systematic review.","authors":"Faezeh Yousefi, Younes Mohammadi, Kimia Nikikhah, Forough Abbasiyan","doi":"10.1007/s11282-025-00815-4","DOIUrl":"10.1007/s11282-025-00815-4","url":null,"abstract":"<p><strong>Background: </strong>There has been an increasing interest in the use of implants to treat edentulous patients. In this regard, the use of cone beam computed tomography (CBCT) offers a variety of advantages compared with other imaging methods. However, the creation of beam-hardening artifacts adversely affects the quality of images. To our knowledge, little is known about the actual effectiveness of the Metal Artifact Reduction (MAR) algorithm on image quality improvement.</p><p><strong>Objectives: </strong>The objective of this study is to conduct a systematic review to investigate the effectiveness of the MAR algorithm on the magnitude of artifacts generated in CBCT images.</p><p><strong>Materials and methods: </strong>An electronic search was performed in electronic databases, including PubMed, Scopus, Web of Science, and Google Scholar. For each database, the search strategy was defined specifically. Studies that had the inclusion criteria for this review were imported into Endnote version 20. The risk of bias in the studies included in this systematic review was assessed by two independent reviewers based on the Joanna Briggs Institute (JBI)'s Critical Appraisal checklist. The selected final articles were scored based on the specified checklist. After reviewing selected articles, it was not possible to perform a meta-analysis due to the heterogeneity and multiplicity of the variables, and the studies were included in the systematic review.</p><p><strong>Results: </strong>A total of 4738 studies were identified. After eliminating duplicate and unrelated articles, 10 articles met the inclusion criteria. Results showed that the use of the MAR algorithm in the preparation of CBCT scans reduces the standard deviation (SD) of gray values. However, no definite result was achieved in relation to the contrast-to-noise ratio (CNR). In fact, it cannot be definitively concluded whether the use of the MAR algorithm will increase the CNR.</p><p><strong>Conclusion: </strong>The results of this systematic review demonstrated that we cannot provide a definite answer regarding the effect of the MAR algorithm on reducing the artifacts around dental implants. The explanation is that this factor is affected by many variables, whose change can have a significant effect on the magnitude of artifacts generated in the image.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"311-319"},"PeriodicalIF":1.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143652064","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
Development of a novel phantom for evaluating jawbone SPECT targeting medication-related osteonecrosis of the jaw. 一种用于评估颌骨SPECT靶向药物相关性颌骨坏死的新型假体的开发。
IF 1.6 3区 医学
Oral Radiology Pub Date : 2025-07-01 Epub Date: 2025-02-27 DOI: 10.1007/s11282-025-00809-2
Naoya Hayashi, Norikazu Matsutomo, Ryotaro Tokorodani, Mitsuha Fukami, Miki Nishimori, Hitomi Iwasa, Kie Nakatani, Tetsuya Yamamoto, Takuji Yamagami, Tomoaki Yamamoto
{"title":"Development of a novel phantom for evaluating jawbone SPECT targeting medication-related osteonecrosis of the jaw.","authors":"Naoya Hayashi, Norikazu Matsutomo, Ryotaro Tokorodani, Mitsuha Fukami, Miki Nishimori, Hitomi Iwasa, Kie Nakatani, Tetsuya Yamamoto, Takuji Yamagami, Tomoaki Yamamoto","doi":"10.1007/s11282-025-00809-2","DOIUrl":"10.1007/s11282-025-00809-2","url":null,"abstract":"<p><strong>Objective: </strong>We developed a new phantom for technical evaluation of jawbone single-photon emission computed tomography (SPECT) examinations for medication-related osteonecrosis of the jaw (MRONJ). In this study, we verified the utility of the phantom by determining optimal image reconstruction parameters.</p><p><strong>Methods: </strong>We evaluated the image quality and quantification in jawbone SPECT images obtained by different reconstruction parameters using the phantom. The phantom images were acquired using a SPECT/computed tomography (CT) system and then reconstructed using ordered-subset expectation maximization (OSEM) iterative reconstruction with resolution recovery as well as scatter and attenuation correction with various update numbers and Gaussian filter full width at half maximums (FWHMs). The percent contrast (%contrast) and absolute recovery coefficient were calculated to determine the optimal reconstruction parameters (OSEM<sub>jaw</sub>). Nineteen patients with a clinical diagnosis of MRONJ who underwent bone SPECT/CT were enrolled for the clinical study. The performance of OSEM<sub>jaw</sub> was verified by comparison with OSEM<sub>current</sub> determined by a spherical phantom, using the correlation between the mean standardized uptake value (SUV<sub>mean</sub>) and clinical staging and visual assessment as endpoints.</p><p><strong>Results: </strong>In the phantom study, %contrast and absolute recovery coefficient increased with increasing update numbers. As the Gaussian filter FWHM increased, the quantitative accuracy and image sharpness decreased. The parameter determined by the phantom study (OSEM<sub>jaw</sub>) recommended 120 updates and no filter. In the clinical study, the mean and standard deviation of SUV<sub>mean</sub> obtained from OSEM<sub>jaw</sub> were 8.9 ± 1.4 for stage 1 lesions, 12.9 ± 4.1 for stage 2 lesions, and 13.8 ± 1.4 for stage 3 lesions. For OSEM<sub>current</sub>, they were 5.4 ± 2.3 for stage 1 lesions, 8.3 ± 2.5 for stage 2 lesions, and 8.0 ± 0.9 for stage 3 lesions. The SUV<sub>mean</sub> obtained from OSEM<sub>jaw</sub> had a stronger correlation with clinical stage. Based on visual assessment, the quality of the SPECT images reconstructed by OSEM<sub>jaw</sub> (3.7 ± 0.9) was superior to that reconstructed by OSEM<sub>current</sub> (2.9 ± 1.1).</p><p><strong>Conclusions: </strong>We developed a novel phantom and adapted it for technical evaluation. This study demonstrated the utility of the developed phantom.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"378-387"},"PeriodicalIF":1.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12167234/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143517455","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
Comparison of stimulated and unstimulated salivary gland parenchyma using fractal analysis of ultrasonographic images. 超声图像分形分析刺激与非刺激唾液腺实质的比较。
IF 1.6 3区 医学
Oral Radiology Pub Date : 2025-07-01 Epub Date: 2025-02-27 DOI: 10.1007/s11282-025-00811-8
Numan Dedeoğlu, Oğuzhan Altun, Duygu Çelik Özen, Gözde Eşer
{"title":"Comparison of stimulated and unstimulated salivary gland parenchyma using fractal analysis of ultrasonographic images.","authors":"Numan Dedeoğlu, Oğuzhan Altun, Duygu Çelik Özen, Gözde Eşer","doi":"10.1007/s11282-025-00811-8","DOIUrl":"10.1007/s11282-025-00811-8","url":null,"abstract":"<p><strong>Objective: </strong>To compare the fractal analysis data of ultrasonography (USG) images of the submandibular and parotid glands before and after parenchymal stimulation to assess for any changes.</p><p><strong>Methods: </strong>The study was conducted by taking 240 USG images of bilateral parotid and submandibular glands of 30 patients before and after stimulation. Patients chewed gum for stimulating their salivary glands. Fractal analysis was performed on the USG images, and the data obtained were statistically compared.</p><p><strong>Results: </strong>The fractal analysis value of the USG images of the parotid gland was 1.45, both before and after stimulation, indicating no statistically significant difference (p = 0.866). In the submandibular gland, this value was the same before and after stimulation (fractal analysis = 1.42), showing no statistically significant difference (p = 0.748). Parotid and submandibular glands were compared. USG fractal analysis values before and after stimulation and the overall values were statistically significantly different between the different salivary glands (p < 0.05).</p><p><strong>Conclusion: </strong>According to fractal analysis, there was no change in the parenchyma of the submandibular and parotid glands despite the stimulation. Submandibular and parotid glands could be distinguished by fractal analysis.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"396-402"},"PeriodicalIF":1.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143517407","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
Evaluation of the effectiveness of artificial intelligence models in radiopaque and radiolucent lesions of the maxillofacial region on panoramic radiographs. 人工智能模型在全景x线片颌面部透、透光病变诊断中的有效性评价。
IF 1.6 3区 医学
Oral Radiology Pub Date : 2025-07-01 DOI: 10.1007/s11282-025-00838-x
Zeynep Turanli Tosun, Nida Kumbasar, Muhammet Akif Sumbullu, Ozkan Miloglu
{"title":"Evaluation of the effectiveness of artificial intelligence models in radiopaque and radiolucent lesions of the maxillofacial region on panoramic radiographs.","authors":"Zeynep Turanli Tosun, Nida Kumbasar, Muhammet Akif Sumbullu, Ozkan Miloglu","doi":"10.1007/s11282-025-00838-x","DOIUrl":"https://doi.org/10.1007/s11282-025-00838-x","url":null,"abstract":"<p><strong>Objectives: </strong>The aim of this study is to evaluate the success of algorithms used in deep learning (DL), a technique of artificial intelligence (AI), in the classification, detection, and segmentation of radiopaque, and radiolucent lesions in the maxillofacial region on panoramic radiographs (PR).</p><p><strong>Methods: </strong>This study included PRs of individuals aged 12 to 80 years who presented with radiopaque or radiolucent findings in the maxillofacial region based on radiological examination. Lesions were classified on the dataset obtained from the PRs using AlexNet, VGG16, and GoogleNet architectures. The location detection and segmentation of lesions were performed using the YOLOv8 architecture. The classification, object detection, and segmentation performances of the DL architectures were evaluated.</p><p><strong>Results: </strong>In the classification tasks using full PR, GoogleNet achieved the highest accuracy of 95.6%, with 97.1% precision and 95.5% F1 score in two-class lesion classification (lesion vs. no lesion). In distinguishing radiopaque and radiolucent lesions, VGG16 performed best, with 68.4% accuracy and 81.0% F1 score. For three-class and four-class classifications, GoogleNet again outperformed others with 61.6 and 75.7% accuracy, respectively. In cropped lesion-based classification, both GoogleNet and AlexNet achieved 96.5% accuracy. The YOLOv8m model demonstrated the best performance in object detection and segmentation, with 71.5% and 72.1% mean Average Precision (mAP), respectively.</p><p><strong>Conclusion: </strong>These findings suggest that DL architectures, particularly GoogleNet for classification and YOLOv8m for object detection and segmentation, demonstrate strong potential in the automated analysis of maxillofacial lesions on panoramic radiographs. Their high performance in distinguishing lesion types and accurately localizing pathological areas indicates that such models could assist clinicians in early diagnosis and treatment planning, potentially reducing reliance on more complex imaging methods.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144546310","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
Can MRI radiomics predict neck metastasis at initial diagnosis in patients with squamous cell carcinoma of the tongue? 核磁共振成像放射组学能否预测舌鳞癌患者初诊时的颈部转移?
IF 1.6 3区 医学
Oral Radiology Pub Date : 2025-07-01 Epub Date: 2025-02-18 DOI: 10.1007/s11282-025-00810-9
Arisa Oki, Shin Nakamura, Junichiro Sakamoto, Hiroshi Watanabe, Masahiko Miura
{"title":"Can MRI radiomics predict neck metastasis at initial diagnosis in patients with squamous cell carcinoma of the tongue?","authors":"Arisa Oki, Shin Nakamura, Junichiro Sakamoto, Hiroshi Watanabe, Masahiko Miura","doi":"10.1007/s11282-025-00810-9","DOIUrl":"10.1007/s11282-025-00810-9","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to predict the risk of neck metastasis in patients with tongue squamous cell carcinoma by performing radiomics analysis of preoperative magnetic resonance (MR) images.</p><p><strong>Methods: </strong>In total, 143 patients with primary tongue cancer were enrolled and divided into training and validation groups. The presence of neck metastases was assessed after at least 6-month of follow-up. Using fat-suppressed T2-weighted images, two observers manually set the volume of interest at the tumor site using the 3D Slicer software and extracted 107 image features. The analysis was based on significant differences between patient groups in the presence or absence of neck metastases by the Mann-Whitney U test and good agreement with intra- and inter-observer intra-class correlation coefficients exceeding 0.9. In addition, two characteristics that were determined to be very useful for diagnosing neck metastases were selected by receiver operating characteristic analysis and evaluated for goodness of fit in the validation data.</p><p><strong>Results: </strong>Neck metastases were identified in 57 of 143 patients and divided into 121 training and 22 validation datasets. Using the combined criteria of Major Axis Length of 3D-shape features and Joint Entropy of the gray-level co-occurrence matrix, neck metastases were identified in 80.7% of the cases; the validation data predicted neck metastases in 80% of the cases.</p><p><strong>Conclusions: </strong>MR-imaging texture analysis of the primary tumor helps predict neck metastasis in patients with tongue cancer. The proposed criteria are simple yet useful for identifying groups of patients who may require neck dissection.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"388-395"},"PeriodicalIF":1.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143442919","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
Evaluation of the effect of reducing metal artifacts in multi-detector CT imaging of zirconia and titanium implants. 氧化锆和钛植入体多探测器CT成像中减少金属伪影效果的评价。
IF 1.6 3区 医学
Oral Radiology Pub Date : 2025-07-01 Epub Date: 2025-03-04 DOI: 10.1007/s11282-025-00814-5
Hideki Suito, Hozumi Yoshihara, Naoki Maeda, Ryosuke Kasai, Tadashi Inoue, Masafumi Amano, Yuuri Oku, Keiko Fujimoto, Kan Nagao
{"title":"Evaluation of the effect of reducing metal artifacts in multi-detector CT imaging of zirconia and titanium implants.","authors":"Hideki Suito, Hozumi Yoshihara, Naoki Maeda, Ryosuke Kasai, Tadashi Inoue, Masafumi Amano, Yuuri Oku, Keiko Fujimoto, Kan Nagao","doi":"10.1007/s11282-025-00814-5","DOIUrl":"10.1007/s11282-025-00814-5","url":null,"abstract":"<p><strong>Objectives: </strong>Zirconia oral implants produce larger artifacts on computed tomography (CT) compared to titanium oral implants. This study aimed to compare the effectiveness of metal artifact reduction (MAR) software and dual-energy (DE) methods, which are used in multi-detector CT (MDCT) to reduce the artifacts produced by titanium and zirconia oral implants.</p><p><strong>Methods: </strong>Oral implants were placed in the lower right second premolar and second molar regions of an acrylic mandible model and evaluated using MDCT. For MAR, Single Energy Metal Artifact Reaction (SEMAR) images were obtained, and for DE, images were obtained at 135 keV. The evaluation was based on 21 regions of interest (ROIs) with sides of 2.8 mm, set at 15, 25, and 35 mm from the center (the lower-right first premolar), with 65°, 90°, 115°, and 145° angles set on the buccal and lingual sides. The evaluation was based on an Artifact Index (AI).</p><p><strong>Results: </strong>The lingual aspect of the AI tended to be larger compared to the buccal aspect, regardless of the image-processing method. In addition, the SEMAR method tended to have a greater artifact reduction effect than the DE method. The distortion of the mandibular model and occurrence of new artifacts were confirmed using SEMAR.</p><p><strong>Conclusions: </strong>SEMAR had higher artifact reduction effects on metal artifacts than the DE method. Although SEMAR and dual-energy methods can effectively reduce metal artifacts, they also cause false images and areas that cannot be observed. Therefore, diagnostic and treatment planning, including imaging, is essential before artifact reduction processing.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"421-429"},"PeriodicalIF":1.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143558902","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
Radiomorphometric indices for measuring mandibular bone quality in oncologic patients. 测量肿瘤患者下颌骨质量的放射形态学指标。
IF 1.6 3区 医学
Oral Radiology Pub Date : 2025-07-01 Epub Date: 2025-01-20 DOI: 10.1007/s11282-025-00803-8
Mailon Cury Carneiro, Lukas Mendes de Abreu, Laura Vidoto Paludetto, Paulo Sérgio da Silva Santos, Izabel Regina Fischer Rubira-Bullen, Cássia Maria Fischer Rubira
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