Oral Radiology最新文献_第8页

Prone position magnetic resonance imaging for the mandibular bone: enhancing image quality to perform texture analysis for medication-related osteonecrosis of the jaw and carcinoma of the lower gingiva 下颌骨俯卧位磁共振成像：提高图像质量，对药物性颌骨坏死和下牙龈癌进行纹理分析

IF 2.2 3区医学

Oral Radiology Pub Date : 2024-05-01 DOI: 10.1007/s11282-024-00754-6

Takahiro Otani, Hirokazu Yoshida, Daichi Sugawara, Yu Mori, Naoko Mori

引用次数: 0

Eligibility of a novel BW + technology and comparison of sensitivity and specificity of different imaging methods for radiological caries detection 新型 BW + 技术的资格以及不同成像方法在放射学龋齿检测中的灵敏度和特异性比较

IF 2.2 3区医学

Oral Radiology Pub Date : 2024-04-29 DOI: 10.1007/s11282-024-00748-4

Kathrin Becker, Henrike Ehrlich, Mira Hüfner, Nicole Rauch, Caroline Busch, Beryl Schwarz-Herzke, Dieter Drescher, Jürgen Becker

{"title":"Eligibility of a novel BW + technology and comparison of sensitivity and specificity of different imaging methods for radiological caries detection","authors":"Kathrin Becker, Henrike Ehrlich, Mira Hüfner, Nicole Rauch, Caroline Busch, Beryl Schwarz-Herzke, Dieter Drescher, Jürgen Becker","doi":"10.1007/s11282-024-00748-4","DOIUrl":"https://doi.org/10.1007/s11282-024-00748-4","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Objectives</h3><p>Bitewing radiography is considered to be of high diagnostic value in caries detection, but owing to projections, lesions may remain undetected. The novel bitewing plus (BW +) technology enables scrolling through radiographs in different directions and angles. The present study aimed at comparing BW + with other 2D and 3D imaging methods in terms of sensitivity, specificity, and user reliability.</p><h3 data-test=\"abstract-sub-heading\">Materials and methods</h3><p>Five human cadavers were used in this study. In three cadavers, natural teeth were transplanted post-mortem. BW + , two-dimensional (digital sensors, imaging plates, 2D and 3D bitewing radiographs) and 3D methods (high and low dose CBCT) were taken. Carious lesions were evaluated on 96 teeth at three positions (mesial, distal, and occlusal) and scored according to their level of demineralization by ten observers, resulting in 35,799 possible lesions across all observers and settings. For reference, µCT scans of all teeth were performed.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>Overall, radiographic evaluations showed a high rate of false-negative diagnoses, with around 70% of lesions remaining undetected, especially enamel lesions. BW + showed the highest sensitivity for dentinal caries and had comparatively high specificity overall.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>Within the limits of the study, BW + showed great potential for added diagnostic value, especially for dentinal caries. However, the tradeoff of diagnostic benefit and radiation exposure must be considered according to each patient’s age and risk.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":"2017 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140811946","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

A rare case of unilateral double Stafne bone defects and literature review 单侧双 Stafne 骨缺损罕见病例及文献综述

IF 2.2 3区医学

Oral Radiology Pub Date : 2024-04-18 DOI: 10.1007/s11282-024-00753-7

Zyad Amin, Dan Colosi, Nora Odingo, Rekha Reddy

引用次数: 0

Comparison of mandibular morphometric parameters in digital panoramic radiography in gender determination using machine learning 利用机器学习比较数字全景放射摄影中的下颌骨形态参数在性别鉴定中的应用

IF 2.2 3区医学

Oral Radiology Pub Date : 2024-04-16 DOI: 10.1007/s11282-024-00751-9

Hanife Pertek, Mustafa Kamaşak, Soner Kotan, Fatma Pertek Hatipoğlu, Ömer Hatipoğlu, Taha Emre Köse

{"title":"Comparison of mandibular morphometric parameters in digital panoramic radiography in gender determination using machine learning","authors":"Hanife Pertek, Mustafa Kamaşak, Soner Kotan, Fatma Pertek Hatipoğlu, Ömer Hatipoğlu, Taha Emre Köse","doi":"10.1007/s11282-024-00751-9","DOIUrl":"https://doi.org/10.1007/s11282-024-00751-9","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Objective</h3><p>This study aimed to evaluate the usability of morphometric features obtained from mandibular panoramic radiographs in gender determination using machine learning algorithms.</p><h3 data-test=\"abstract-sub-heading\">Materials and methods</h3><p>High-resolution radiographs of 200 patients aged 20–77 (41.0 ± 12.7) were included in the study. Twelve different morphometric measurements were extracted from each digital panoramic radiography included in the study. These measurements were used as features in the machine learning phase in which six different machine learning algorithms were used (k-nearest neighbor, decision trees, support vector machines, naive Bayes, linear discrimination analysis, and neural networks). To evaluate the reliability, we have performed tenfold cross-validation and we repeated this 10 times for every classification process. This process enhances the reliability of the results for other datasets.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>When all 12 features are used together, the accuracy rate is found to be 82.6 ± 0.5%. The classification accuracies are also compared using each feature alone. Three features that give the highest accuracy are coronoid height (80.9 ± 0.9%), condyle height (78.2 ± 0.5%), and ramus height (77.2 ± 0.4%), respectively. When compared to the classification algorithms, the highest accuracy was obtained with the naive Bayes algorithm with a rate of 84.0 ± 0.4%.</p><h3 data-test=\"abstract-sub-heading\">Conclusion</h3><p>Machine learning techniques can accurately determine gender by analyzing mandibular morphometric structures from digital panoramic radiographs. The most precise results are achieved by evaluating the structures in combination, using attributes obtained from applying the MRMR algorithm to all features.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":"11 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140572819","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

Age estimation by volumetric analysis of teeth using cone beam computed tomography 利用锥形束计算机断层扫描对牙齿进行容积分析以估算年龄

IF 2.2 3区医学

Oral Radiology Pub Date : 2024-04-08 DOI: 10.1007/s11282-024-00750-w

Ana Beatriz Raposo Souza, Adriana Dibo Cruz, Marcelo Freitas Aguiar

{"title":"Age estimation by volumetric analysis of teeth using cone beam computed tomography","authors":"Ana Beatriz Raposo Souza, Adriana Dibo Cruz, Marcelo Freitas Aguiar","doi":"10.1007/s11282-024-00750-w","DOIUrl":"https://doi.org/10.1007/s11282-024-00750-w","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Objectives</h3><p>To evaluate the feasibility of using the pulp volume (Pv) to total volume (Tv) ratio (Pv:Tv), obtained from cone beam computed tomography (CBCT) scans of single-rooted teeth, for age estimation in a Brazilian population sample.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>After obtaining approval from the ethics committee, the study commenced by applying inclusion criteria to screen CBCT scans, resulting in a probability-based sample of participants aged 18 years and older (ranging from 18 to 82 years, with a mean age of 46.44 years). A total of 517 single-rooted teeth, including maxillary central incisors (CI), mandibular canines (C), and mandibular first premolars (FP), were chosen based on excellent agreement values (> 0.9). Pv and Tv measurements were conducted using semi-automatic segmentation with ITK-SNAP 3.8 software. Statistical analysis was performed using Jamovi software, with a significance level set at 5% (<i>α</i> = 0.05).</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>A strong negative correlation (<i>r</i> > −0.7) was observed between chronological age and the Pv:Tv ratio across all examined teeth. However, when conducting regression analysis with Pv:Tv data and chronological age as the independent variable, only the mandibular FP teeth exhibited a normal distribution. The resulting linear model demonstrated moderate predictive value (approximately 64%) in explaining the variance in chronological age, but caution should be exercised when interpreting these findings.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>The method of measuring individual tooth volume using CBCT to estimate chronological age via Pv:Tv has been demonstrated as effective and reproducible within the Brazilian population sample.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":"11 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140572603","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

The relation between persistent foramen tympanicum and degenerative bone alterations in temporomandibular joint region 持续性鼓室与颞下颌关节区骨退行性改变的关系

IF 2.2 3区医学

Oral Radiology Pub Date : 2024-04-08 DOI: 10.1007/s11282-024-00749-3

Ruth Jorge Fagundes, Beatriz Caio Felipe, Matheus Kawana Couto, Mariliani Chicarelli Silva, Lilian Cristina Vessoni Iwaki

{"title":"The relation between persistent foramen tympanicum and degenerative bone alterations in temporomandibular joint region","authors":"Ruth Jorge Fagundes, Beatriz Caio Felipe, Matheus Kawana Couto, Mariliani Chicarelli Silva, Lilian Cristina Vessoni Iwaki","doi":"10.1007/s11282-024-00749-3","DOIUrl":"https://doi.org/10.1007/s11282-024-00749-3","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Objectives</h3><p>The aim of this study was to evaluate, using cone-beam computed tomography (CBCT), the relationship of persistent foramen tympanicum (PFT) with degenerative changes in the temporomandibular joint (TMJ) and the presence of pneumatized glenoid fossae and articular eminences.</p><h3 data-test=\"abstract-sub-heading\">Method</h3><p>Two experienced oral and maxillofacial radiologists evaluated 510 CBCT scans, from which 94 patients were divided into two groups: G1—patients with PFT and G2—control group. The location of the PFT, presence, or absence of degenerative TMJ changes and morphology were evaluated. Similarly, all images were evaluated for the presence of pneumatized articular eminence and glenoid fossa. The Chi-square test and Fisher’s Exact test were used for the categorical variables. A multinomial logistic regression model was performed for subgroup analysis. To assess the estimation-chance occurrence of TMJ alterations the Odds Ratio analysis was used.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>Statistically significant results were found for erosion, planning, and subchondral cyst. Regarding TMJ morphology, significant results were found for: round, flat, and others. Moreover, it was possible to observe that patients who had the PFT were approximately 48 times more likely to manifest TMJ alterations and approximately 3 times more likely to manifest articular eminence pneumatization.</p><h3 data-test=\"abstract-sub-heading\">Conclusion</h3><p>Since individuals who have FTP have a greater chance of having TMJ and PEA changes, it is important for the dental radiologist to be aware of these signs in CBCT scans for a correct diagnosis.</p><h3 data-test=\"abstract-sub-heading\">Trial registration number</h3><p>CAAE: 34328214.3.0000.0104 (11/30/2014).</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":"35 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140572618","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

Ultrasound-guided arthrocentesis for condylar head fracture: a technical report 超声引导下关节穿刺治疗髁状突骨折：技术报告

IF 2.2 3区医学

Oral Radiology Pub Date : 2024-04-03 DOI: 10.1007/s11282-024-00744-8

Tomoharu Hemmi, Tomohiro Uno, Kazuyuki Yusa, Shigeo Ishikawa, Mitsuyoshi Iino

{"title":"Ultrasound-guided arthrocentesis for condylar head fracture: a technical report","authors":"Tomoharu Hemmi, Tomohiro Uno, Kazuyuki Yusa, Shigeo Ishikawa, Mitsuyoshi Iino","doi":"10.1007/s11282-024-00744-8","DOIUrl":"https://doi.org/10.1007/s11282-024-00744-8","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Objectives</h3><p>Double puncture arthrocentesis (DPA) of the temporomandibular joint (TMD) is considered an effective preservative option for managing mandibular condylar head fractures. However, the procedure is commonly performed by a traditional “blind” method using anatomical characteristics. In the present study, an ultrasonography (US) device was applied for the treatment of a case with a fractured mandibular condyle.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>A 79-year-old female was diagnosed right side condylar head fracture complaining pain of right TMD and reduced mouth opening range: inter-incisor distance of 20 mm. Since the fracture position was high and inoperable, the decision was made to perform DPA of the TMD. The US probe was positioned parallel and slightly oblique to the major axis of the mandibular ramus. Both the posterior and anterior insertions into the joint space were performed according to the axis mentioned above, which enabled the operator to visualize the entirety of the needle.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>The device offered safety and ensured accuracy by providing real-time visual aid to the surgeon. The procedure provided an early increase in the inter-incisor distance (31 mm) and pain relief.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>Hence, for the preservative treatment of mandibular condylar head fractures, based on the present study, we recommend US-guided arthrocentesis as a safe, feasible, and effective therapeutic option instead of the conventional “blind” method.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":"2014 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140572617","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

Texture analysis using short-tau inversion recovery magnetic resonance images to differentiate squamous cell carcinoma of the gingiva from medication-related osteonecrosis of the jaw. 利用短tau反转恢复磁共振图像的纹理分析来区分牙龈鳞状细胞癌和颌骨药物相关性骨坏死。

IF 2.2 3区医学

Oral Radiology Pub Date : 2024-04-01 Epub Date: 2023-12-07 DOI: 10.1007/s11282-023-00725-3

Kotaro Ito, Naohisa Hirahara, Hirotaka Muraoka, Eri Sawada, Satoshi Tokunaga, Takashi Kaneda

{"title":"Texture analysis using short-tau inversion recovery magnetic resonance images to differentiate squamous cell carcinoma of the gingiva from medication-related osteonecrosis of the jaw.","authors":"Kotaro Ito, Naohisa Hirahara, Hirotaka Muraoka, Eri Sawada, Satoshi Tokunaga, Takashi Kaneda","doi":"10.1007/s11282-023-00725-3","DOIUrl":"10.1007/s11282-023-00725-3","url":null,"abstract":"<p><strong>Objectives: </strong>Despite the difficulty in distinguishing between squamous cell carcinoma (SCC) and medication-related osteonecrosis of the jaw (MRONJ) on the basis of medical imaging examinations, the two conditions have completely different treatment methods and prognoses. Therefore, differentiation of SCC from MRONJ on imaging examinations is very important. This study aimed to distinguish SCC from MRONJ by performing texture analysis using magnetic resonance imaging (MRI) short-tau inversion recovery images.</p><p><strong>Methods: </strong>This retrospective case-control study included 14 patients with SCC of the lower gingiva and 35 with MRONJ of the mandible who underwent MRI and computed tomography (CT) for suspected SCC or MRONJ. SCC was identified by histopathological examination of tissues excised during surgery. The radiomics features of SCC and MRONJ were analyzed using the open-access software MaZda version 3.3 (Technical University of Lodz, Institute of Electronics, Poland). CT was used to evaluate the presence or absence of qualitative findings (sclerosis, sequestrum, osteolysis, periosteal reaction, and cellulitis) of SCC and MRONJ.</p><p><strong>Results: </strong>Among the 19 texture features selected using MaZda feature-reduction methods, SCC of the gingiva and MRONJ of the mandible revealed differences in two histogram features, one absolute gradient feature, and 16 Gy level co-occurrence matrix features. In particular, the percentile, angular second moment, entropy, and difference entropy exhibited excellent diagnostic performance.</p><p><strong>Conclusion: </strong>Non-contrast-enhanced MRI texture analysis revealed differences in texture parameters between mandibular SCC and mandibular MRONJ. MRI texture analysis can be a new noninvasive quantitative method for distinguishing between SCC and MRONJ.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"219-225"},"PeriodicalIF":2.2,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138500348","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

Imaging characteristics of incidentally detected cosmetic surgery-derived foreign bodies on CT images in the maxillofacial region. 颌面部 CT 图像上偶然发现的整容手术异物的成像特征。

IF 2.2 3区医学

Oral Radiology Pub Date : 2024-04-01 Epub Date: 2024-01-22 DOI: 10.1007/s11282-023-00734-2

Miki Hisatomi, Yohei Takeshita, Yoshinobu Yanagi, Shunsuke Okada, Mamiko Fujikura, Suzuka Yoshida, Toshiyuki Kawazu, Junichi Asaumi

{"title":"Imaging characteristics of incidentally detected cosmetic surgery-derived foreign bodies on CT images in the maxillofacial region.","authors":"Miki Hisatomi, Yohei Takeshita, Yoshinobu Yanagi, Shunsuke Okada, Mamiko Fujikura, Suzuka Yoshida, Toshiyuki Kawazu, Junichi Asaumi","doi":"10.1007/s11282-023-00734-2","DOIUrl":"10.1007/s11282-023-00734-2","url":null,"abstract":"<p><strong>Objectives: </strong>This study examined the imaging characteristics of cosmetic surgery-derived foreign bodies in the maxillofacial region through a retrospective review of cosmetic material foreign bodies incidentally detected on computed tomography (CT) images in routine clinical practice.</p><p><strong>Methods: </strong>We retrospectively investigated cases of cosmetic surgery-derived foreign bodies other than dental materials in the maxillofacial region, using 5 years of CT image data stored on an imaging server. The imaging findings of these foreign bodies were investigated, along with patient age, patient sex, whether the foreign bodies were associated with the disease targeted by the CT scan, and the availability of cosmetic surgery information prior to examination.</p><p><strong>Results: </strong>Foreign bodies were more common in women (19/21 cases), and affected patients displayed a wide age range (20-84 years). Four types of cosmetic surgery-derived foreign bodies in the maxillofacial region were detected by CT examination: nasal prostheses (nasal region), lifting sutures and injectable facial fillers (both in the buccal region), and silicone chin implants (chin region).</p><p><strong>Conclusions: </strong>A cosmetic surgery-derived foreign body should be suspected when a foreign body is identified without a dental source of infection. In addition, cosmetic surgery-derived foreign bodies may be present in numerous patients, regardless of age or sex.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"277-284"},"PeriodicalIF":2.2,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10927817/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139514232","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

A case of odontogenic keratocyst in the buccal space: characterization by multimodality imaging including computed tomography, diffusion-weighted magnetic resonance imaging, and ultrasonography. 一例口腔牙源性角化囊肿：多模态成像特征，包括计算机断层扫描、扩散加权磁共振成像和超声检查。

IF 2.2 3区医学

Oral Radiology Pub Date : 2024-04-01 Epub Date: 2023-09-19 DOI: 10.1007/s11282-023-00712-8

Yasuhito Tezuka, Takahiro Oneyama, Yoriaki Kanri, Shuji Toya, Yasuo Okada, Ichiro Ogura

{"title":"A case of odontogenic keratocyst in the buccal space: characterization by multimodality imaging including computed tomography, diffusion-weighted magnetic resonance imaging, and ultrasonography.","authors":"Yasuhito Tezuka, Takahiro Oneyama, Yoriaki Kanri, Shuji Toya, Yasuo Okada, Ichiro Ogura","doi":"10.1007/s11282-023-00712-8","DOIUrl":"10.1007/s11282-023-00712-8","url":null,"abstract":"<p><p>Odontogenic keratocyst (OKC) is a relatively common non-inflammatory jaw lesion. OKC is known to occur most often in the mandibular angle and mandibular ramus, but rarely outside the bone. In this report, we describe characteristic multimodality imaging of OKC in the buccal space, especially diffusion-weighted MR imaging (DWI) with apparent diffusion coefficient (ADC) mapping, extra-oral and intra-oral ultrasonography. On clinical examination, an approximately 20 mm in diameter mass with elastic hardness was found the left side of the buccal area. Contrast-enhanced CT showed areas of internal non-contrast lesions in the left buccal space. On T1-weighted image, the mass showed multilocular high signal intensity, and homogeneous internal. T2-weighted images revealed high signal at the marginal part and slightly median signal in the internal part. STIR images revealed a heterogeneous high signal in the interior. Furthermore, DWI and ADC map showed high signal and moderate-to-low signal intensity, respectively. ADC value of the lesion was 1.55 × 10<sup>-3</sup> mm<sup>2</sup> s<sup>-1</sup>. On extra-oral ultrasonography, the tumor showed clear boundary, hypoechoic, homogeneous internal architecture and vascular signals, and heterogeneous hard of the lesion. On intra-oral ultrasonography also showed clear boundary, hypoechoic, homogeneous internal architecture, heterogeneous hard of the tumor, and back echo enhance. The histopathologic diagnosis based on a full excisional specimen was odontogenic keratocyst. This case suggests that multimodality imaging, especially MR imaging with ADC and DWI, and extra and intra-oral ultrasonography with color Doppler imaging and elastography, could be effective for evaluating buccal lesions.</p>","PeriodicalId":56103,"journal":{"name":"Oral Radiology","volume":" ","pages":"304-309"},"PeriodicalIF":2.2,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41141846","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