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Volumetric Analysis of the Jaws in Skeletal Class I and III Patients with Different Facial Divergence Using CBCT Imaging 不同面部散度的ⅰ、ⅲ类患者颌骨体积的CBCT分析
IF 2.7 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2022-05-28 DOI: 10.1155/2022/2416555
Rama Yasser Alhawasli, M. Ajaj, M. Y. Hajeer, Assil Mohammad Raef Al-Zahabi, Luai Mahaini
Aim The main objective was to evaluate any possible maxillary or mandibular volumetric difference between hyperdivergent skeletal Class III (CIII), normodivergent skeletal CIII, hypodivergent skeletal CIII, and normodivergent skeletal Class I (CI) patients using cone-beam computed tomography (CBCT) images. Also, the secondary objective was to investigate any possible correlation between CBCT-derived lateral cephalometric variables and the mandibular and maxillary volumes (MdV and MxV, respectively). Materials and Methods 80 CBCT images of patients between 18 and 32 years of age were taken with one CBCT imaging device (Scanora 3D®, Soredex, Tuusula, Finland). The sample consisted of four groups: 20 hypodivergent skeletal CIII (11 males and 9 females), 20 normodivergent skeletal CIII (7 males and 13 females), 20 hyperdivergent skeletal CIII (8 males and 12 females), and 20 normodivergent skeletal CI (5 males and 15 females). The volumes of both jaws and the ratio of MxV/MdV were obtained using Mimics™ 19 software (Materialise, NV, Belgium), and 2D variables were obtained from CBCT-derived lateral cephalogram using AudaxCeph™ software (Orthodontic software suite, Ljubljana, Slovenia). One-way ANOVA test and Kruskal–Wallis analysis were employed to detect any possible significant difference between the volumetric variables, whereas Pearson's and Spearman's correlation coefficients were calculated to detect any possible relationship between the 2D variables and the volumetric measurements. Results There were no statistically significant differences in the maxillary volume or maxillary/mandibular ratio between the four groups (p=0.081 and 0.432, respectively). There was a significant difference in MdV between CIII hypodivergent (higher mean) and CIII hyperdivergent (p=0.039). There were some correlations between the MdV and 2D variables in the four studied groups especially in the posterior facial height (S-Go) and the facial depth (N-Go). There were some weaker correlations between the MxV and some 2D variables in the CIII hypodivergent and hyperdivergent groups. Conclusions The mandibular volume of the Class III hypodivergent patient was significantly greater than that of the Class III hyperdivergent patients. Correlations between the maxillary or mandibular volumes were found with some of the 2D variables. The volume of both jaws increased when the maxillofacial complex moved toward a horizontal growth pattern.
目的:主要目的是利用锥束计算机断层扫描(CBCT)图像,评估骨超发散III类(CIII)、骨正常发散CIII、骨低发散CIII和骨正常发散I类(CI)患者的上颌或下颌体积差异。此外,次要目的是调查cbct衍生的侧位测量变量与下颌和上颌体积(分别为MdV和MxV)之间的任何可能的相关性。材料与方法使用一台CBCT成像设备(Scanora 3D®,Soredex, Tuusula, Finland)拍摄80例18 ~ 32岁患者的CBCT图像。样本包括四组:20例低发散骨骼CIII(男性11例,女性9例),20例正常发散骨骼CIII(男性7例,女性13例),20例超发散骨骼CIII(男性8例,女性12例),20例正常发散骨骼CI(男性5例,女性15例)。使用Mimics™19软件(Materialise, NV,比利时)获得双颌体积和MxV/MdV比例,使用AudaxCeph™软件(Orthodontic software suite,卢布尔雅那,斯洛文尼亚)从cbct衍生的侧位脑电图获得2D变量。采用单因素方差分析和Kruskal-Wallis分析来检测体积变量之间可能存在的显著差异,而计算Pearson’s和Spearman’s相关系数来检测二维变量与体积测量之间可能存在的关系。结果四组患者上颌体积、上颌/下颌比例差异无统计学意义(p=0.081、0.432)。CIII低发散(高均值)和高发散(p=0.039)间MdV有显著差异。四个研究组的MdV和2D变量之间存在一定的相关性,特别是在面部后高度(S-Go)和面部深度(N-Go)方面。在CIII低发散组和高发散组中,MxV和一些2D变量之间存在较弱的相关性。结论III级低发散患者的下颌体积明显大于III级高发散患者。上颌或下颌体积与某些2D变量之间存在相关性。当颌面复合体向水平方向生长时,双颌体积增大。
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引用次数: 4
Clinic and Computed Tomographic Imaging of Lung Pathology in COVID-19 Comorbidity, Tuberculosis and Opportunistic Diseases in Patients with HIV Infection HIV感染患者COVID-19合并症、结核病和机会性疾病的临床和肺部病理ct成像
IF 2.7 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2022-05-13 DOI: 10.52560/2713-0118-2022-3-24-38
A. V. Mishina, V. Mishin, D. A. Lezhnev, A. L. Sobkin
The clinic and computer tomographic imaging of lung pathology in COVID-19 comorbidity, tuberculosis and opportunistic diseases in patients with stage IV of HIV infection, in the phase of progression, in the absence of ART in 29 patients compared with similar 29 patients, but without COVID-19 were studied. It was found that the comorbidity of COVID-19 and tuberculosis, stage IV of HIV infection, in the phase of progression, in the absence of ART is characterized by the generalization of tuberculosis and the development of opportunistic lung diseases, severe clinical picture and visualization with computed tomography of dissemination syndrome, pulmonary pattern pathology and adenopathy, which practically does not differ from patients without COVID-19. It is not possible to diagnose this comorbidity by clinical and radiation methods of research. Special microbiological and molecular genetic methods are needed to study diagnostic material from the respiratory system and other organs in order to prescribe timely etiological treatment.
研究了29例HIV感染IV期、进展期、无ART治疗的患者与29例相似但无COVID-19的患者的临床和肺部病理计算机断层成像情况,包括COVID-19合并症、结核病和机会性疾病。结果发现,在没有抗逆转录病毒治疗的情况下,COVID-19与结核病、HIV感染IV期、进展期的合并症的特点是结核病的普遍化和机会性肺部疾病的发展、播散综合征、肺型病理和腺病的严重临床图像和ct可视化,与未感染COVID-19的患者实际上没有区别。这是不可能诊断这种合并症的临床和放射研究方法。需要特殊的微生物学和分子遗传学方法来研究来自呼吸系统和其他器官的诊断材料,以便及时开出病因治疗处方。
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引用次数: 0
Role of Magnetic Resonance Cholangiopancreatography in the Diagnosis of Cystic Transformation Hepaticocholedoch and Possible Postoperative Complications (Clinical Case) 磁共振胰胆管造影对胆囊变性肝胆总管的诊断价值及可能的术后并发症(附临床病例)
IF 2.7 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2022-05-13 DOI: 10.52560/2713-0118-2022-3-74-82
O. V. Lukovkina, N. Sholohova, Y. Sokolov, T. V. Utkina
The article presents a description of a clinical case in a 7-year old child suffering occasional abdominal pain. An examination (3D magnetic resonance cholangiopancreatography) revealed a choledoch duct cyst type Iс. Surgical correction of congenital malformation of bile ducts was performed due to periodic attacks of pain, presence of concretions in the ducts, the possibility of malignification in the future and the development of possible complications. The clinical example demonstrates the high efficiency of MRCP for assessing anatomical and topographic relationships and concomitant structural anomalies that allow planning the tactics of surgical treatment. MRCP is important to use in the postoperative period to assess possible complications.
文章介绍了一个临床病例的描述在一个7岁的孩子偶尔腹痛。三维磁共振胆管造影显示胆总管囊肿型胆管。由于疼痛的周期性发作,胆管中存在结块,未来可能出现恶性肿瘤以及可能出现并发症,因此进行了先天性胆管畸形的手术矫正。临床实例表明,MRCP在评估解剖和地形关系以及伴随的结构异常方面具有很高的效率,从而可以规划手术治疗策略。MRCP对于术后评估可能的并发症非常重要。
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引用次数: 0
Using Magnetic Resonance Liver Non-Contrast Perfusion in Patients with Diffuse Liver Diseases 磁共振肝脏非对比灌注在弥漫性肝病中的应用
IF 2.7 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2022-05-13 DOI: 10.52560/2713-0118-2022-3-39-50
A. Telesh, T. Morozova
The aim of this work is to evaluate possibilities of MR liver non-contrast perfusion in patients with diffuse liver diseases (DLD). Laboratory data, results of ultrasound examination with doppler ultrasonography of liver vessels, results of MRI with non-contrast MR perfusion (ASL-perfusion) of the liver was estimated in a group of patients with DLD. Potentials of assessment of ASL liver perfusion for clinical form prediction are described in the article. Potentials of using the assessment of ASL liver perfusion for information about a liver blood flow type and process activity indicators by blood chemistry are also described. It was established, that ASL MR of the liver is recommended to use in patients with diffuse liver diseases who admitted to a hospital, then in 1 month (in case of hypo/hyperperfusion) or in 6 months (in case of normal perfusion).
本研究的目的是评估弥漫性肝病(DLD)患者MR肝脏非对比灌注的可能性。对一组DLD患者的实验室数据、肝血管多普勒超声检查结果、肝脏非对比MR灌注(asl -灌注)MRI结果进行评估。本文描述了评估ASL肝灌注对临床形态预测的潜力。还描述了使用ASL肝灌注评估的潜力,以获得有关肝脏血流类型和血液化学过程活性指标的信息。我们已经确定,对于住院的弥漫性肝病患者,推荐使用肝脏ASL MR,然后在1个月(低/高灌注)或6个月(正常灌注)。
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引用次数: 0
Evaluation of the Efficacy of Neoadjuvant Radiation Twice a Day Fractionation Therapy in Patients with Resectable Pancreatic Head Cancer 新辅助放疗每日两次分步治疗可切除胰头癌的疗效评价
IF 2.7 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2022-04-27 DOI: 10.52560/2713-0118-2022-2-9-23
L. Korytova, D. Sklyar, E. V. Vlasova, A. Pavlovskiy, A. Polikarpov, E. V. Moiseenko, O. Korytov
The coronavirus of severe acute respiratory syndrome-2 (SARS-CoV-2) and the coronavirus infection caused by it, along with damage to the respiratory system, can lead to disorders of the central and peripheral nervous system. The article presents literature data and own observations of neurological disorders in patients with coronavirus disease in the superacute period. Pronounced neurological disorders are mainly observed in severe coronavirus disease and include acute ischemic stroke, subcortical micro- and macro— bleeding, acute necrotizing encephalopathy, Guillain-Barre syndrome. Factors potentially complicating the course of coronavirus disease and contributing to the development of neurological complications are hypertension, diabetes mellitus, chronic diseases of the heart and respiratory system. Based on existing publications and our own observations, we have systematized information about the relationship between coronavirus disease and neurological disorders, about possible factors contributing to the occurrence of stroke. The possibilities of using chest MSCT as the only method of radiation diagnostics for the early detection of viral pneumonia in patients receiving emergency and emergency care at the regional vascular center of BUZOO «GC BSMP No. 1» are considered. The use of this method, in the ultra-acute period of acute ischemic stroke, during the first 40 minutes from the moment of admission, can significantly reduce the time of diagnosis and mortality in patients with acute ischemic stroke and viral pneumonia.
严重急性呼吸综合征-2 (SARS-CoV-2)的冠状病毒及其引起的冠状病毒感染,以及对呼吸系统的损害,可导致中枢和周围神经系统紊乱。本文介绍了有关冠状病毒病超急性期患者神经功能障碍的文献资料和个人观察。严重的神经系统疾病主要见于重症冠状病毒病,包括急性缺血性卒中、皮质下微宏观出血、急性坏死性脑病、格林-巴利综合征。可能使冠状病毒病程复杂化并导致神经系统并发症的因素包括高血压、糖尿病、心脏和呼吸系统慢性疾病。根据现有的出版物和我们自己的观察,我们系统地了解了冠状病毒病与神经系统疾病之间的关系,以及导致中风发生的可能因素。考虑了在BUZOO“GC BSMP No. 1”区域血管中心接受急诊和急诊护理的患者中,使用胸部MSCT作为早期发现病毒性肺炎的唯一放射诊断方法的可能性。在急性缺血性脑卒中超急性期,即入院后的前40分钟内,使用此法可显著减少急性缺血性脑卒中合并病毒性肺炎患者的诊断时间和死亡率。
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引用次数: 0
Multimodal Approach in the Diagnosis of Hippel – Lindau Disease. Case Report Hippel - Lindau病的多模态诊断。病例报告
IF 2.7 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2022-04-27 DOI: 10.52560/2713-0118-2022-2-84-93
D. S. Stegura, R. Konovalov, M. Krotenkova, M. Dreval’, P. Anufriev, A. N. Kovaleva, D. D. Kuryshev
Hippel-Lindau  disease is a rare hereditary combined pathology characterized by development of a variety of benign and malignant tumors in the central nervous system, kidneys, pancreas, adrenal glands, which causes a wide range of clinical manifestations. A comprehensive diagnostic approach using various imaging techniques such as ultrasound, magnetic resonance imaging, computed tomography, and genetic testing is an integral part of successful treatment.
希佩尔-林道病是一种罕见的遗传性联合病理,其特点是中枢神经系统、肾脏、胰腺、肾上腺发生多种良恶性肿瘤,引起广泛的临床表现。综合诊断方法使用各种成像技术,如超声、磁共振成像、计算机断层扫描和基因检测是成功治疗的一个组成部分。
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引用次数: 0
Oral Cancer Screening by Artificial Intelligence-Oriented Interpretation of Optical Coherence Tomography Images 基于光学相干断层扫描图像人工智能的口腔癌筛查
IF 2.7 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2022-04-23 DOI: 10.1155/2022/1614838
K. Ramezani, M. Tofangchiha
Early diagnosis of oral cancer is critical to improve the survival rate of patients. The current strategies for screening of patients for oral premalignant and malignant lesions unfortunately miss a significant number of involved patients. Optical coherence tomography (OCT) is an optical imaging modality that has been widely investigated in the field of oncology for identification of cancerous entities. Since the interpretation of OCT images requires professional training and OCT images contain information that cannot be inferred visually, artificial intelligence (AI) with trained algorithms has the ability to quantify visually undetectable variations, thus overcoming the barriers that have postponed the involvement of OCT in the process of screening of oral neoplastic lesions. This literature review aimed to highlight the features of precancerous and cancerous oral lesions on OCT images and specify how AI can assist in screening and diagnosis of such pathologies.
口腔癌的早期诊断对提高患者的生存率至关重要。不幸的是,目前对口腔癌前病变和恶性病变患者的筛查策略错过了大量相关患者。光学相干断层扫描(OCT)是一种光学成像方式,在肿瘤学领域被广泛研究用于癌症实体的识别。由于OCT图像的解释需要专业训练,并且OCT图像包含无法通过视觉推断的信息,因此经过训练的算法的人工智能(AI)有能力量化视觉上无法检测到的变化,从而克服了延迟OCT参与口腔肿瘤病变筛查过程的障碍。本文献综述旨在突出癌前病变和癌性口腔病变在OCT图像上的特征,并说明人工智能如何协助筛查和诊断此类病变。
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引用次数: 7
Optimization of Image Quality and Organ Absorbed Dose for Pediatric Chest X-Ray Examination: In-House Developed Chest Phantom Study 优化儿童胸部x线检查的图像质量和器官吸收剂量:内部开发的胸影研究
IF 2.7 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2022-04-16 DOI: 10.1155/2022/3482458
T. Pengpan, N. Rattanarungruangchai, Juthathip Dechjaithat, Phawinee Panthim, Puntarika Siricharuwong, Ausanai Prapan
Purpose This study aimed to identify proper exposure techniques to maintain optimal diagnostic image quality with minimum radiation dose for anteroposterior chest X-ray projection in pediatric patients. Methods Briefly, an in-house developed pediatric chest phantom was constructed. Next, nanodot OSLDs were used for organ absorbed dose measurement and placed in the lung area, and the phantom was exposed to various exposure techniques (ranging from 50 to 70 kVp with 1.6, 2, and 2.5 mAs). After that, the phantom was used to assess image quality parameters, including SNR and CNR. Two radiologists assessed the subjective image quality using a visual grading analysis (VGA) technique. Finally, the figure of merit (FOM) was analyzed. Results The developed phantom was constructed successfully and could be useful for dose measurement and image quality assessment. The absorbed dose varied from 0.009 to 0.031 mGy for the range of exposure techniques used. SNR and CNR showed a gradually increasing trend, while kVp and mAs values were increased. The highest kVp (70 kVp) produced the highest SNR and CNR, exhibiting a significant difference compared with 50 and 60 kVp (P < 0.05). The overall VGA score was 3.2 ± 0.3, and the low kVp technique demonstrated better image quality compared with the reference image. Conclusion The optimized exposure technique was identified as 60 kV and 2.5 mAs, indicating the highest FOM score. This work revealed practicable techniques that could be implemented into clinical practice for performing pediatric chest radiography.
目的本研究旨在确定适当的暴露技术,以最小的辐射剂量在儿科患者的胸部正位x线投射中保持最佳的诊断图像质量。方法简单地,自制小儿胸假体。接下来,纳米点osld用于器官吸收剂量测量并放置在肺区域,并将幻体暴露于各种暴露技术(范围为50至70 kVp, 1.6, 2和2.5 ma)。之后,利用模型评估图像质量参数,包括信噪比和CNR。两名放射科医生使用视觉分级分析(VGA)技术评估主观图像质量。最后,对优值进行了分析。结果研制成功的模型可用于剂量测量和图像质量评价。对于所使用的照射技术范围,吸收剂量从0.009至0.031毫戈瑞不等。SNR和CNR呈逐渐增大的趋势,kVp和mAs值逐渐增大。最高kVp (70 kVp)产生的信噪比和CNR最高,与50和60 kVp相比差异显著(P < 0.05)。VGA总体评分为3.2±0.3,低kVp技术的图像质量优于参考图像。结论最佳暴露工艺为60 kV、2.5 ma, FOM评分最高。这项工作揭示了可行的技术,可以实施到临床实践中进行儿科胸部x线摄影。
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引用次数: 2
Intussusception in a Newborn. Clinical Observation 新生儿肠套叠。临床观察
IF 2.7 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2022-04-15 DOI: 10.52560/60/2713-0118-2022-2-65-74
E. B. Olkhova, T. V. Mukaseeva, V. Soboleva, A. S. Kirsanov, I. S. Аllakhverdiev
Intestinal intussusception in a newborn is a casuistic rarity, the clinical symptoms of which are nonspecific, and patients are regarded for a relatively long time as patients with necrotic enterocolitis. There are no unambiguous radiological signs of this  pathology,  especially with  atypical  variants of intussusception, when even pneumoirrigography is uninformative. In the vast majority of cases, the diagnosis is made only intra-operatively, when the development of intestinal obstruction or perforated peritonitis determines the need for surgical intervention. The publication presents a unique observation of preoperative echographic diagnosis and successful cure of prolonged small-intestinal invagination in a premature newborn 2 days of life, the cause of which was Meckel’s diverticulum.
新生儿肠套叠罕见,临床症状无特异性,长期以来被视为坏死性小肠结肠炎患者。这种病理没有明确的影像学征象,尤其是不典型的肠套叠变型,即使是气灌成像也不能提供信息。在绝大多数病例中,只有当肠梗阻或穿孔性腹膜炎的发展决定了需要手术干预时,才能在术中进行诊断。该出版物提出了一个独特的观察术前超声诊断和成功治疗延长小肠内陷的早产儿2天的生命,其原因是梅克尔憩室。
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引用次数: 0
Evaluation of the influence of clinical information on the interpretation of digital chest radiographs 临床信息对数字胸片解释影响的评价
IF 2.7 Q2 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2022-04-03 DOI: 10.52560/2713-0118-2022-3-67-73
A. Vasil’ev, V. Nechaev
In this study, the impact of the availability and accuracy of the patient’s clinical, laboratory and anamnestic data on the conclusion of a radiologist was evaluated. To achieve this goal, three groups of protocols of 60 digital chest radiographs performed by five radiologists with different work experience were compared. At the first stage, a set of radiographs was provided without additional information, at the second stage — with reliable brief clinical, laboratory and anamnestic data and at the third stage - with unreliable data. As a result, it was shown that the availability of reliable and accurate clinical information is important for the interpretation of chest radiographs.
在这项研究中,患者的临床,实验室和记忆数据的可用性和准确性对放射科医生的结论的影响进行了评估。为了实现这一目标,我们比较了五名不同工作经验的放射科医生拍摄的60张数字胸片的三组方案。在第一阶段,提供了一套射线照片,但没有额外的资料;在第二阶段,提供了可靠的简短临床、实验室和记忆数据;在第三阶段,提供了不可靠的数据。结果表明,可靠和准确的临床信息的可用性对胸片的解释是重要的。
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引用次数: 0
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Radiology Research and Practice
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