radiology

放射学
  • 文章类型: Case Reports
    尽管通常是可以治疗和预防的,肺结核(PTB)是导致死亡的最常见感染因子之一。结核病的误诊经常导致不必要的诊断程序并推迟治疗的开始。
    肺结核(PTB)可以表现出各种异常的放射学和临床特征。结核病的误诊经常导致不必要的诊断程序并推迟治疗的开始。这里,我们描述了一名50岁的男性,他的放射学发现和非典型症状表现为癌性病变,导致最初诊断为肺癌.然而,肺病变的组织病理学和活检显示慢性肉芽肿性炎症伴干酪样坏死,确认PTB是真正的原因,没有进一步的恶性肿瘤指征。
    UNASSIGNED: Despite being generally treatable and preventative, pulmonary tuberculosis (PTB) is one of the most common infectious agents that cause death. Misdiagnosis of TB frequently leads to unwarranted diagnostic procedures and postpones the start of treatment.
    UNASSIGNED: Pulmonary tuberculosis (PTB) can present with various unusual radiological and clinical characteristics. Misdiagnosis of TB frequently leads to unwarranted diagnostic procedures and postpones the start of treatment. Here, we describe a 50-year-old man who presented with a cancerous-type lesion on radiological findings and atypical symptoms that led to an initial diagnosis of lung cancer. However, histopathology and biopsy of the lung lesion revealed chronic granulomatous inflammation with caseous necrosis, confirming PTB as the true cause, with no further indications of malignancy.
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  • 文章类型: Journal Article
    纤维化是涉及结缔组织异常沉积的病理过程,由于缺氧造成的持续损伤导致组织修复不当,感染,或物理损伤。它可以影响任何器官,导致他们的功能障碍和最终的失败。此外,组织纤维化在癌症的发生和发展中起着重要作用。早期准确诊断器官纤维化,再加上定期监测,对于及时的疾病改善干预措施至关重要,最终降低死亡率,提高生活质量。虽然已经对异常伤口愈合和纤维发生进行了广泛的研究,我们对他们之间的关系如何通过现代成像技术揭示自己缺乏透彻的了解。本文的重点是生殖泌尿系统的纤维化,详细介绍用于其检测的相关成像技术,并探索未来的方向。
    Fibrosis is a pathological process involving the abnormal deposition of connective tissue, resulting from improper tissue repair in response to sustained injury caused by hypoxia, infection, or physical damage. It can impact any organ, leading to their dysfunction and eventual failure. Additionally, tissue fibrosis plays an important role in carcinogenesis and the progression of cancer.Early and accurate diagnosis of organ fibrosis, coupled with regular surveillance, is essential for timely disease-modifying interventions, ultimately reducing mortality and enhancing quality of life. While extensive research has already been carried out on the topics of aberrant wound healing and fibrogenesis, we lack a thorough understanding of how their relationship reveals itself through modern imaging techniques.This paper focuses on fibrosis of the genito-urinary system, detailing relevant imaging technologies used for its detection and exploring future directions.
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  • 文章类型: Journal Article
    近几十年来,法医尸检前的死后计算机断层扫描(pmCT)变得越来越重要,尤其是在单一伤害的法医文件中,损伤模式,和死亡原因。在pmCT扫描中也可以检测到死后分解气体的形成,这可能会影响人类颞骨(TBs)死后人工耳蜗的研究。
    在2年内(2017年1月至2019年12月)有50名非腐烂的绞刑死亡包括100TB。在法医尸检之前,每个尸体都接受了全身pmCT。尽管经验丰富的神经学家在尸检中缺乏腐败,但仍对PmCT扫描进行了分析,以了解耳蜗内气体的存在。
    PmCT显示,尽管在验尸和尸检中没有头部外伤和腐败,但两个个体仍形成了气体。两个人的前庭和两侧的耳蜗都显示出封闭的气体。
    耳蜗内气体形成,最有可能与分解有关,尽管在验尸和尸检中缺乏腐败,但仍可能发生,并且可以通过pmCT检测到。这一发现在非创伤性死亡病例中似乎相当罕见,但可能会影响死后人类结核病的耳蜗压力研究。
    UNASSIGNED: Postmortem computed tomography (pmCT) prior to forensic autopsy has become increasingly important in recent decades, especially in forensic documentation of single injuries, injury patterns, and causes of death. Postmortem decomposition gas formation can also be detected in pmCT scans, which might affect cochlear implant research in postmortem human temporal bones (TBs).
    UNASSIGNED: Fifty non-putrefied hanging fatalities within a 2-year period (January 2017 to December 2019) were included with 100 TBs. Each body underwent whole-body pmCT prior to forensic autopsy. PmCT scans were analyzed with respect to the presence of intracochlear gas despite the lack of putrefaction at autopsy by an experienced fellow neurotologist.
    UNASSIGNED: PmCT revealed gas formation in two individuals despite the lack of head trauma and putrefaction at postmortem examination and autopsy. Both individuals showed enclosed gas in the vestibule and the cochlea on both sides.
    UNASSIGNED: Intracochlear gas formation, most likely related to decomposition, may occur despite the lack of putrefaction at postmortem examination and autopsy and can be detected by pmCT. This finding seems to be rather rare in non-traumatic death cases but might affect cochlear pressure research in postmortem human TB.
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  • 文章类型: Journal Article
    这项前瞻性观察性研究旨在通过检查泪囊造影(DCG)图像来探索先天性鼻泪管阻塞(CNLDO)患者泪道形态的多样性。
    该研究包括64例患者,这些患者在接受单侧CNLDO的全身麻醉探查之前接受了DCG。从DCG图像的侧视图测量了几个参数:(1)泪囊(LS)和鼻泪管(NLD)角度,(2)上轨道边缘(SOR)形成的角度,LS,还有NLD,(3)LS长度,和(4)骨NLD长度。此外,DCG图像的正面视图用于测量(5)LS-NLD角和(6)关于中线的LS角。
    患者的平均年龄为34.3个月。上述参数测量的平均值±标准偏差为(1)-1.2°±16.5°(范围:-44.6°±46.6°),(2)-5.0°±10.3°(范围:-24.0°±19.0°),(3)10.2±2.4mm(范围:6.5-16.0mm),(4)8.0±2.5mm(范围:3.1-14.8mm),(5)15.6°±11.2°(范围:-16.8°±41.0°),(6)15.1±5.2°(范围:3.3°-29.8°)。所有参数,除参数(3)外,符合正态分布。
    这项研究提供了来自DCG图像的有价值的人体测量数据,强调CNLDO患者泪道形态的实质性变异性。此外,解剖学上的限制使得在本研究中25.0%的患者中,使用直金属探查在解剖学上不可行。
    了解泪道的形态对于先天性鼻泪管阻塞(CNLDO)患者的成功探查治疗至关重要。这项研究代表了通过泪囊造影图像量化泪道引流系统人体测量参数的初步努力,专门旨在突出盲检程序的局限性。结果强调了患者泪道引流系统形态的显着差异,这可能会影响诊断方法和治疗策略。此外,研究结果表明,对盲检无反应的CNLDO患者可能存在潜在的解剖学复杂性.因此,而不是依靠重复的盲目探测,对于复杂的CNLDO病例,采用直视下的神经内镜引导探查可以提供更有效的治疗选择.
    UNASSIGNED: This prospective observational study aimed to explore the diversity in lacrimal pathway morphology among patients with congenital nasolacrimal duct obstruction (CNLDO) by examining dacryocystography (DCG) images.
    UNASSIGNED: The study included 64 patients who underwent DCG before undergoing general anesthesia probing for unilateral CNLDO. Several parameters were measured from the lateral view of the DCG images: (1) the lacrimal sac (LS) and the nasolacrimal duct (NLD) angle, (2) the angle formed by the superior orbital rim (SOR), LS, and the NLD, (3) LS length, and (4) bony NLD length. Additionally, frontal views of the DCG images were utilized to measure (5) LS-NLD angle and (6) LS angle concerning the midline.
    UNASSIGNED: The average age of the patients was 34.3 months. The mean ± standard deviation of the measurements of the above parameters was (1) -1.2° ± 16.5° (range: -44.6° ± 46.6°), (2) -5.0° ± 10.3° (range: -24.0° ± 19.0°), (3) 10.2 ± 2.4 mm (range: 6.5-16.0 mm), (4) 8.0 ± 2.5 mm (range: 3.1-14.8 mm), (5) 15.6° ± 11.2° (range: -16.8° ± 41.0°), and (6) 15.1 ± 5.2° (range: 3.3°-29.8°). All parameters, except for parameter (3), conformed to a normal distribution.
    UNASSIGNED: This study provides valuable anthropometric data derived from DCG images, highlighting the substantial variability in lacrimal pathway morphology among patients with CNLDO. Furthermore, anatomical constraints made probing with a straight metal bougie anatomically infeasible in 25.0% of the patients included in this study.
    Understanding the morphology of the lacrimal pathway is crucial for the successful probing treatments in patients with congenital nasolacrimal duct obstruction (CNLDO). This study represents an initial effort to quantify anthropometric parameters of the lacrimal drainage system through dacryocystography images, specifically aiming to highlight the limitations of blind probing procedure. The results underscore significant variations in the morphology of the lacrimal drainage system among patients, which could impact diagnostic approaches and treatment strategies. Additionally, the findings suggest that patients with CNLDO who do not respond to blind probing may have underlying anatomical complexities. Therefore, rather than relying on repeated blind probing, employing dacryoendoscopy-guided probing under direct visualization could offer a more effective therapeutic alternative for complicated cases of CNLDO.
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  • 文章类型: Journal Article
    Omental梗塞(OI)是急性腹痛的罕见原因。OI的诊断需要高的临床怀疑指数,因为发病率低于1%。表现为腹痛。我们报告了印度一家三级医院的初级OI的临床和放射学概况。
    在这项回顾性横断面研究中,我们回顾了7年(2015-2022年)腹痛患者的电子医疗和放射学记录.系统地收集和分析变量。
    本研究共纳入22例诊断为原发性OI的患者。男性占优势(63.6%),平均年龄为47.45岁(SD±13.84;范围:18-72岁)。大多数患者属于I类肥胖(根据亚太体重指数分类),平均BMI为26.56kg/m2(SD±3.21kg/m2)。所有患者均以腹痛为主要症状,平均持续时间为8.64天(SD±10.15;范围:1-42天)。最常见的疼痛部位是右侧软骨下(27.3%)和弥漫性(27.3%),其次是右髂窝(18.1%)。大多数(95.45%,n=21/22)患者接受保守治疗,只有一个需要手术干预。
    原发性OI是一种罕见且良性的急腹症病因。肥胖是一种危险因素,但与OI的大小或严重程度无关。放射成像,比如计算机断层扫描(CT)扫描,对诊断至关重要。在考虑手术选择之前,保守的治疗路线应该是治疗原发性OI的第一种方法。
    UNASSIGNED: Omental infarction (OI) is an uncommon cause of acute abdominal pain. A high index of clinical suspicion is required for diagnosis of OI as the incidence is less than 1 %, presenting with abdominal pain. We report primary OI\'s clinical and radiological profile from a single tertiary care hospital in India.
    UNASSIGNED: In this retrospective cross-sectional study, the electronic medical and radiology records of patients with abdominal pain were reviewed over seven years (2015-2022). Variables were systematically collected and analyzed.
    UNASSIGNED: A total of 22 patients diagnosed with primary OI were included in this study. Male preponderance (63.6 %) was noted with a mean age of 47.45 years (SD ± 13.84; range: 18-72 years). Most patients belonged to class I obesity (according to the Asia-Pacific body mass index classification) with a mean BMI of 26.56 kg/m2 (SD ± 3.21 kg/m2). All patients had abdominal pain as the primary symptom, with a mean duration of 8.64 days (SD ± 10.15; range: 1-42 days). The most common locations of pain were the right hypochondrium (27.3 %) and diffuse (27.3 %), followed by the right iliac fossa (18.1 %). Most (95.45 %, n=21/22) patients were treated conservatively, and only one required surgical intervention.
    UNASSIGNED: Primary OI is a rare and benign cause of acute abdomen. Obesity is a risk factor but does not correlate with the size or severity of OI. Radiological imaging, like a computed tomography (CT) scan, is essential for diagnosis. A conservative management line should be the first approach in treating primary OI before considering surgical options.
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  • 文章类型: Journal Article
    目标:在韩国,放射学已被定位为早期采用基于人工智能的软件作为医疗设备(AI-SaMD);然而,对当前的使用情况知之甚少,实施,以及AI-SaMD的未来需求。我们调查了韩国放射学会(KSR)成员对AI-SaMD的当前趋势和期望。
    方法:一项匿名和自愿的在线调查在2023年4月17日至5月15日期间向所有KSR成员开放。调查的重点是使用AI-SaMD的经验,使用模式,满意度,以及对使用AI-SaMD的期望,包括行业的角色,政府,和KSR关于AI-SaMD的临床应用。
    结果:在370名受访者中(回应率:7.7%[370/4792];340名经董事会认证的放射科医师;210名来自学术机构),60.3%(223/370)有使用AI-SaMD的经验。受访者中AI-SaMD的两个最常见用例是病变检测(82.1%,183/223),病变诊断/分类(55.2%,123/223),目标成像方式为平片(62.3%,139/223),CT(42.6%,95/223),乳房X线照相术(29.1%,65/223),和MRI(28.7%,64/223)。大多数用户对AI-SaMD感到满意(67.6%[115/170,用于改善患者管理]至85.1%[189/222,用于性能])。关于临床应用的扩展,大多数受访者表示倾向于AI-SaMD协助检测/诊断(77.0%,285/370),并进行自动测量/定量(63.5%,235/370)。大多数受访者表示,AI-SaMD的未来发展应侧重于提高实践效率(81.9%,303/370)和质量(71.4%,264/370)。总的来说,91.9%的受访者(340/370)同意需要KSR驱动的有关AI-SaMD使用的教育或指南。
    结论:AI-SaMD在临床实践中的普及率和相应的满意度在KSR成员中很高。大多数AI-SaMD已用于病变检测,诊断,和分类。大多数受访者要求KSR驱动的教育或使用AI-SaMD的指南。
    OBJECTIVE: In Korea, radiology has been positioned towards the early adoption of artificial intelligence-based software as medical devices (AI-SaMDs); however, little is known about the current usage, implementation, and future needs of AI-SaMDs. We surveyed the current trends and expectations for AI-SaMDs among members of the Korean Society of Radiology (KSR).
    METHODS: An anonymous and voluntary online survey was open to all KSR members between April 17 and May 15, 2023. The survey was focused on the experiences of using AI-SaMDs, patterns of usage, levels of satisfaction, and expectations regarding the use of AI-SaMDs, including the roles of the industry, government, and KSR regarding the clinical use of AI-SaMDs.
    RESULTS: Among the 370 respondents (response rate: 7.7% [370/4792]; 340 board-certified radiologists; 210 from academic institutions), 60.3% (223/370) had experience using AI-SaMDs. The two most common use-case of AI-SaMDs among the respondents were lesion detection (82.1%, 183/223), lesion diagnosis/classification (55.2%, 123/223), with the target imaging modalities being plain radiography (62.3%, 139/223), CT (42.6%, 95/223), mammography (29.1%, 65/223), and MRI (28.7%, 64/223). Most users were satisfied with AI-SaMDs (67.6% [115/170, for improvement of patient management] to 85.1% [189/222, for performance]). Regarding the expansion of clinical applications, most respondents expressed a preference for AI-SaMDs to assist in detection/diagnosis (77.0%, 285/370) and to perform automated measurement/quantification (63.5%, 235/370). Most respondents indicated that future development of AI-SaMDs should focus on improving practice efficiency (81.9%, 303/370) and quality (71.4%, 264/370). Overall, 91.9% of the respondents (340/370) agreed that there is a need for education or guidelines driven by the KSR regarding the use of AI-SaMDs.
    CONCLUSIONS: The penetration rate of AI-SaMDs in clinical practice and the corresponding satisfaction levels were high among members of the KSR. Most AI-SaMDs have been used for lesion detection, diagnosis, and classification. Most respondents requested KSR-driven education or guidelines on the use of AI-SaMDs.
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  • 文章类型: Journal Article
    随着越来越多的放射科医生变得具有AI知识,人工智能(AI)在放射学领域迅速获得认可。然而,人工智能解决方案在临床环境中的采用和实施进展缓慢,有争论点。一群人工智能用户,主要由亚洲各个国家的临床放射科医生组成,包括印度,Japan,马来西亚,新加坡,台湾,泰国,乌兹别克斯坦,成立了工作组。这项研究旨在起草有关AI在放射学中的应用和临床部署的立场声明。主要目的是提高公众的认识,促进专业兴趣和讨论,澄清实施人工智能技术时的道德考虑,并在不断变化的临床实践中从事放射学专业。这些立场声明强调了护理提供者和护理接受者之间需要解决的相关问题。更重要的是,这将有助于在临床部署中合法使用非人器械,而不会损害道德考虑,决策精度,和临床专业标准。我们的研究基于医疗护理的四个主要原则-尊重患者自主权,仁慈,非恶意,和正义。
    Artificial intelligence (AI) is rapidly gaining recognition in the radiology domain as a greater number of radiologists are becoming AI-literate. However, the adoption and implementation of AI solutions in clinical settings have been slow, with points of contention. A group of AI users comprising mainly clinical radiologists across various Asian countries, including India, Japan, Malaysia, Singapore, Taiwan, Thailand, and Uzbekistan, formed the working group. This study aimed to draft position statements regarding the application and clinical deployment of AI in radiology. The primary aim is to raise awareness among the general public, promote professional interest and discussion, clarify ethical considerations when implementing AI technology, and engage the radiology profession in the ever-changing clinical practice. These position statements highlight pertinent issues that need to be addressed between care providers and care recipients. More importantly, this will help legalize the use of non-human instruments in clinical deployment without compromising ethical considerations, decision-making precision, and clinical professional standards. We base our study on four main principles of medical care-respect for patient autonomy, beneficence, non-maleficence, and justice.
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  • 文章类型: Journal Article
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