Medical Illustration

医学插图
  • 文章类型: Journal Article
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  • 文章类型: Journal Article
    医学插图,这涉及到创造解剖学的视觉表现,长期以来一直是医疗专业人员和教育工作者的重要工具。人工智能和医学插图的整合有可能彻底改变解剖学教育领域,提供高度准确的,可定制的图像。作者评估了三个人工智能驱动的文本到图像生成器,以制作人类头骨的解剖插图,心,和大脑。对发电机的准确描述进行了评估,缝合线,冠状动脉,主动脉和肺动脉干分支,gyri,沟,小脑和颞叶之间的关系。没有一个发生器产生具有全面解剖细节的插图。Foramina,比如精神和眶上孔,经常被省略,和缝合线表示不准确。心脏的插图未能表明正确的冠状动脉起源,主动脉和肺动脉干的分支通常是不正确的。大脑插图缺乏准确的回和沟描绘,小脑和颞叶之间的关系尚不清楚。尽管AI生成器倾向于深奥的图像,与人类插画家相比,它们具有显着的速度和成本优势。然而,提高其准确性需要使用解剖学上正确的图像来增强训练数据库。这项研究强调了人类医学插画家的持续作用,特别是在确保提供准确和可访问的插图。
    Medical illustration, which involves the creation of visual representations of anatomy, has long been an essential tool for medical professionals and educators. The integration of AI and medical illustration has the potential to revolutionize the field of anatomy education, providing highly accurate, customizable images. The authors evaluated three AI-powered text-to-image generators in producing anatomical illustrations of the human skulls, heart, and brain. The generators were assessed for their accurate depiction of foramina, suture lines, coronary arteries, aortic and pulmonary trunk branching, gyri, sulci, and the relationship between the cerebellum and temporal lobes. None of the generators produced illustrations with comprehensive anatomical details. Foramina, such as the mental and supraorbital foramina, were frequently omitted, and suture lines were inaccurately represented. The illustrations of the heart failed to indicate proper coronary artery origins, and the branching of the aorta and pulmonary trunk was often incorrect. Brain illustrations lacked accurate gyri and sulci depiction, and the relationship between the cerebellum and temporal lobes remained unclear. Although AI generators tended toward esoteric imagery, they exhibited significant speed and cost advantages over human illustrators. However, improving their accuracy necessitates augmenting the training databases with anatomically correct images. The study emphasizes the ongoing role of human medical illustrators, especially in ensuring the provision of accurate and accessible illustrations.
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  • 文章类型: Journal Article
    随着人们更加关注教育和媒体的代表性和“非殖民化”,医学插图领域必须保持现状。先前的多项研究得出的结论是,大多数医学教科书主要描述“默认”年轻人,白人男人许多人表示,这种缺乏代表性导致了疏远感;其他人则认为这是造成对边缘化群体的照顾差异的一个因素。这项研究可以说是最可识别的特征,肤色,探讨这种差异-四种情况下黑色素致密皮肤的皮肤病学症状表达的变化。为了评估拥有各种模型的影响,一项研究旨在证明黑色素依赖性皮肤病学症状的可量化识别率,虽然没有统计学意义。参与者被分为两组,并要求检查四种不同的皮肤状况(A组接受均匀苍白肤色的插图,和B组接受描绘不同肤色的插图),然后再识别临床照片。虽然具有不同参考池的小组总体表现略好,他们更好地识别黑色素水平影响病情出现的特定条件。这项初步研究为更发达的未来研究奠定了坚实的基础。
    As greater attention is paid to representation and the \'decolonizing\' of education and media, the field of medical illustration must stay current. Multiple previous studies have concluded that the majority of medical textbooks depict primarily \'default\' young, white men. Many have expressed that this lack of representation resulted in feelings of alienation; others posited it is a contributing factor for the disparity of care for marginalised groups. This research took arguably the most identifiable feature, skin colour, to explore this disparity - the variation of dermatological symptom expression on melanin-dense skin for four conditions. To evaluate the impact of having a diverse range of models, a study was devised to demonstrate identification rates of melanin-dependent dermatological symptoms in a quantifiable, though non-statistically significant manner. Participants were split into two groups and asked to review four different skin conditions (Group-A receiving illustrations of homogeneous pale skin tones, and Group-B receiving illustrations depicting diverse skin tones) before identifying clinical photographs. While the group with a diverse reference pool performed marginally better overall, they performed better identifying specific conditions in which melanin levels impact the appearance of the condition. This pilot study serves as a strong base for a more developed future study.
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  • 文章类型: Journal Article
    The utility of inferior extensor retinacular (IER) reinforcement for arthroscopic repair of a lateral ankle injury is debatable. We hypothesized that the outcomes would not differ significantly between arthroscopic all-inside anterior talofibular ligament (ATFL) repair with and without IER reinforcement.
    We prospectively randomized 73 patients who had arthroscopic all-inside ATFL repair into 2 groups: those who had IER reinforcement (37 patients) and those who had no IER reinforcement (36 patients). The primary outcome was the Karlsson Ankle Functional Score (KAFS). The secondary outcomes included the Foot and Ankle Outcome Score (FAOS), Tegner activity score (TAS), ankle range of motion, and radiographic parameters. The functional outcomes were evaluated preoperatively and at 6 and 12 months postoperatively. Stress radiographs were obtained preoperatively and at 12 months postoperatively.
    The KAFS, all FAOS subscale scores, and TAS improved significantly at 1 year postoperatively in both groups, with no significant differences between the groups with respect to the preoperative and postoperative values. Significant differences were not observed between the ankle range of motion values recorded preoperatively and at 1 year postoperatively in both groups; the preoperative and postoperative range of motion values did not differ significantly between the groups. The mean talar tilt and talar anterior translation decreased significantly at 1 year postoperatively in both groups, with no significant differences between the groups preoperatively and postoperatively. One patient in each group had neuralgia of the superficial peroneal nerve; 2 patients in the IER reinforcement group had knot irritation causing mild discomfort.
    Arthroscopic all-inside ATFL repair with and without IER reinforcement showed comparable functional and stress radiographic outcomes at 1 year. Performing IER reinforcement in addition to all-inside arthroscopic direct ATFL remnant repair is not necessary.
    Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.
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  • 文章类型: Journal Article
    Medical illustrations are an effective means of conveying complex information about cancer to patients and laypersons. However, there are no standard criteria for creating these illustrations. This study used online exploratory research focussed on laypersons to identify the aspects of an illustration that convey the optimal degree of detail and understand these findings. Six illustrations depicting pancreatic cancer and nine depicting cervical cancer, with high, medium, and low levels of detail, were created. A total of 420 participants (male = 210, female = 210, aged 20 years and above) answered an online questionnaire about these illustrations. The results indicated that female participants tended to prefer the same illustration level that they also found most comprehensible. Younger participants (under 40 years) tended to prefer illustrations with a medium level of detail for both cancers. Older participants (40 years and above) tended to prefer illustrations with a high level of detail for both cancers. This study was unable to determine the reasons behind these preferences. However, the researchers hypothesise that older people\'s preference for higher levels of detail may be due to their greater concerns about cancer and because they find the illustrations to be more effective in conveying relevant information.
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  • 文章类型: Clinical Trial, Phase II
    保留活性骨髓(ABM)可以减少宫颈癌放化疗患者的急性血液学毒性,但是基于正电子发射断层扫描/计算机断层扫描(PET/CT)的ABM分割成本很高。我们试图开发一种基于图谱的ABM分割方法,以在前瞻性临床试验中实施。
    多图谱建立在144名患者的训练集上,并在NRG-GY006临床试验的32名患者中进行了验证。个别患者的ABM被定义为骨盆骨亚体积大于注册的18F-脱氧葡萄糖PET/CT图像上的个体平均标准化摄取值。使用Dice相似性系数和平均距离比较了基于Atlas的ABM分割和自定义ABM分割,以达成一致,并用于生成ABM保留强度调制放射治疗计划。使用线性回归比较两种方法的剂量体积指标和正常组织并发症概率。
    基于Atlas的ABM卷(平均值[标准偏差],548.4[88.3]cm3)略大于定制ABM体积(535.1[93.2]cm3),Dice相似系数为0.73。使用基于定制的计划,总骨盆骨髓V20和Dmean系统较高,而定制ABMV10系统较低(斜率:1.021[95%置信区间(CI),1.005-1.037],1.014[95%CI,1.006-1.022],和0.98[95%CI,0.97-0.99],分别)。我们发现基于图谱和基于定制的肠道计划之间没有显着差异,直肠,膀胱,股骨头,或目标剂量-体积指标。
    基于Atlas的ABM分割可以减少骨盆骨髓剂量,同时实现与其他正常组织剂量相当的目标。这种方法可以允许ABM在PET/CT不可用的设置中节省。
    Sparing active bone marrow (ABM) can reduce acute hematologic toxicity in patients undergoing chemoradiotherapy for cervical cancer, but ABM segmentation based on positron emission tomography/computed tomography (PET/CT) is costly. We sought to develop an atlas-based ABM segmentation method for implementation in a prospective clinical trial.
    A multiatlas was built on a training set of 144 patients and validated in 32 patients from the NRG-GY006 clinical trial. ABM for individual patients was defined as the subvolume of pelvic bone greater than the individual mean standardized uptake value on registered 18F-fluorodeoxyglucose PET/CT images. Atlas-based and custom ABM segmentations were compared using the Dice similarity coefficient and mean distance to agreement and used to generate ABM-sparing intensity modulated radiation therapy plans. Dose-volume metrics and normal tissue complication probabilities of the two approaches were compared using linear regression.
    Atlas-based ABM volumes (mean [standard deviation], 548.4 [88.3] cm3) were slightly larger than custom ABM volumes (535.1 [93.2] cm3), with a Dice similarity coefficient of 0.73. Total pelvic bone marrow V20 and Dmean were systematically higher and custom ABM V10 was systematically lower with custom-based plans (slope: 1.021 [95% confidence interval (CI), 1.005-1.037], 1.014 [95% CI, 1.006-1.022], and 0.98 [95% CI, 0.97-0.99], respectively). We found no significant differences between atlas-based and custom-based plans in bowel, rectum, bladder, femoral heads, or target dose-volume metrics.
    Atlas-based ABM segmentation can reduce pelvic bone marrow dose while achieving comparable target and other normal tissue dosimetry. This approach may allow ABM sparing in settings where PET/CT is unavailable.
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  • 文章类型: Comparative Study
    BACKGROUND: The aim of the present study was to establish an animal model of Yang-Monti ileal ureter-bladder anastomosis and Yang-Monti ileal ureter-ureteral anastomosis and compare the advantages and disadvantages of the two surgical methods.
    METHODS: Fourteen 12-month-old male Chinese miniature pigs weighing 21 ± 1.38 kg were randomly divided into two groups. Group A (n = 7) underwent end-to-end anastomosis of the left Yang-Monti ileal ureter, left ileal ureter and left lower ureter; group B (n = 7) underwent anastomosis of the left Yang-Monti ileal ureter, left ileal ureter and bladder. In both groups, the contralateral kidney was removed at 1 week postoperatively. The incision length and operation time of the two groups were compared. Changes in serum creatinine and urea nitrogen were observed preoperatively, and at 2, 6 and 12 weeks postoperatively. Venous pyelography and cystography were performed at 12 weeks postoperatively to determine the ureteral patency and vesicoureteral reflux. At 12 months postoperatively, urinary culture was performed, and the diameter and histological changes of the intestinal ureter were assessed.
    RESULTS: Surgery was successfully completed in all 14 pigs. In group A, one pig died due to an anesthetic accident, and one pig died from a lung infection on postoperative day 4. In group B, one pig died from adhesive intestinal obstruction on postoperative day 7. The overall survival rate was 78.6%, and the 11 surviving pigs had no urinary or intestinal fistulae. Compared with group B, group A had a significantly longer surgical incision (30.86 ± 2.41 cm versus 26.71 ± 3.64 cm; p = 0.01) and shorter operation time (181.29 ± 15.10 min versus 157.71 ± 20.49 min; p = 0.02). The serum creatinine and urea nitrogen concentrations did not significantly differ between groups. All pigs had normal renal function pre- and postoperatively. There was no stenosis or obstruction on venous pyelography. The narrowest diameter of the ureter was significantly smaller in group B (5.90 ± 0.30 mm) than in group A (7.26 ± 1.06 mm; p = 0.01), but no contrast agent returned to the upper urinary tract in either group. Escherichia coli was detected on urine culture. In group A, one pig had obstruction of the ureteral ureter, while another had stenosis of the lower ureteral anastomosis. In group B, one pig had pelvic and intestinal ureteral dilatation; however, all anastomoses were patent. The ileal ureteral diameter was significantly larger in group A (9.40 ± 2.35 mm) than group B (6.62 ± 0.37 mm; p = 0.02). Two pigs in group A had separation of the transitional epithelium and columnar epithelial mucosa, with granulation tissue hyperplasia. The pigs with stenosis and obstruction had smooth fibrous tissue and smooth muscle of the anastomosis. In both groups, the two types of epithelial tissue were close together, and the intestinal villi were mildly atrophied and shortened.
    CONCLUSIONS: An animal model of Yang-Monti ileal ureter-bladder anastomosis was successfully established. Compared with Yang-Monti ileal ureter-ureteral anastomosis, Yang-Monti ileal ureter-bladder anastomosis is simpler, more reliable, and results in fewer complications.
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  • 文章类型: Journal Article
    The orbit is a structure of interest for many medical specialties. Surgical approaches to the orbit present significant difficulties for the general neurosurgeon. Whoever decides to practice orbital surgery must have vast anatomical knowledge of this structure. However, although many of the existing publications about orbital anatomy show the complexity of this structure in detail, they fail to facilitate their understanding. The purpose of this study was to systematise and simplify the anatomical study of the orbit from a surgical perspective, to facilitate its understanding.
    A review of the international literature on the subject was carried out, and the principle of the rule of 7was followed for its ordering. For illustration purposes, photographs of cadaveric preparations and digital drawings were used.
    The orbits are 2cavities located symmetrically on both sides of the nose. They have a pyramidal shape, with 4sides, a posterior vertex, an anterior base and their axis established from the sagittal plane at a 20-degree angle. A distinctive feature of the orbit is that its elements are organised into groups of seven: 7bones, 7intraorbital extraocular muscles and 7nerves.
    A systematisation of the orbital anatomy was performed with clear illustrations to simplify its study. The understanding of the anatomy of the orbit is vital to classify lesions and provides a solid basis when choosing the most appropriate approach for their treatment.
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  • 文章类型: Journal Article
    目的:探讨嵌入个人医学图像的教育干预对疾病感知的影响。痛风患者的用药信念与治疗认识.设计:60名痛风患者被招募到三只手臂的研究中。参与者通过个性化医疗扫描观看了关于痛风的12分钟演讲,普通扫描或医学插图从一个标准的教育小册子痛风。主要结果指标:在基线和干预后立即评估对痛风的疾病感知和对痛风治疗的信念。结果:各组间无显著时间交互作用。所有组均显示治疗对照信念增加(p=0.002),用药必要性(p<.001),提高了对痛风药物的理解(p<.001),并减少了他们对痛风污名的感知(p=.004)。与具有医学插图的干预相比,个性化干预被评为更有趣(p=.026)。发现个人扫描比一般扫描(p=0.023)和医学插图(p=0.048)更有帮助。结论:简短的教育干预在疾病观念上产生了积极的变化,所有群体的用药信念和治疗理解。个人扫描并没有引起具体的变化,但使信息更有趣。
    Objective: To explore the effects of an educational intervention with embedded personal medical images on illness perceptions, medication beliefs and treatment understanding in patients with gout. Design: Sixty people with gout were recruited into the study with three arms. The participants viewed a 12-min presentation about gout with either personalised medical scans, generic scans or medical illustrations from a standard educational booklet on gout. Main Outcome Measures: Illness perceptions about gout and beliefs about treatment for gout were assessed at baseline and immediately after the intervention. Results: There were no significant time by group interaction effects. All groups showed an increase in treatment control beliefs (p = .002), medication necessity (p < .001), improved understanding of medicines for gout (p < .001) and reduced their perceived gout stigma (p = .004). The personalised intervention was rated as more interesting compared to one with medical illustrations (p = .026). Personal scans were found more helpful than generic scans (p = .023) and medical illustrations (p = .048). Conclusion: The brief educational intervention yielded positive changes in illness perceptions, medication beliefs and treatment understanding in all groups. Personal scans did not induce specific changes but made the information more interesting.
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  • 文章类型: Journal Article
    Infographic can be a useful communication tool for delivering cancer education information to the public, especially those with low literacy and numeracy skills. Educational information about skin cancer delivered through visual formats such as infographics could be particularly effective because skin cancer self-diagnosis techniques can be most clearly communicated through visuals. This study examined how two aesthetic features of infographics affect people\'s evaluation of information presented in infographic: colour and visual complexity. The findings suggested colour and visual complexity were both strong predictors of information evaluation in infographic and they should be chosen carefully in the design of infographics.
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