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International Journal of Radiology & Radiation Therapy最新文献

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Radiation fortification: a clinical scenario in India 辐射强化:印度的临床情况
Pub Date : 2018-06-14 DOI: 10.15406/IJRRT.2018.05.00163
D KarthikYadav, Patil Bharati
X rays form the ionizing type of radiation which is used widely in medical and dental practices for detection of disease and other abnormalities as well as to observe disease progression Radiation is a double edged sword with therapeutic and detrimental effects Dose reduction can be achieved by good decision making optimizing radiologic procedures and limitation of dose Atomic Energy Regulatory Board AERB is the Indian regulatory board for protection against radiation
X射线是一种电离型辐射,广泛用于医疗和牙科实践中,用于检测疾病和其他异常以及观察疾病进展。辐射是一把双刃剑,具有治疗和有害作用,剂量减少可以通过良好的决策来实现,优化放射程序和限制剂量原子能监管委员会(AERB)是印度的辐射保护监管委员会
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引用次数: 0
False negative carcinomas on breast magnetic resonance imaging: histological types, enhancement pattern and background parenchymal enhancement 乳腺磁共振假阴性癌:组织学类型、增强模式及背景实质增强
Pub Date : 2018-06-12 DOI: 10.15406/IJRRT.2018.05.00161
E. Fleury, B. Maragno, V. Ayres, L. C. Ramalho, Decio Roveda Junior, C. A. Ferreira
Background Magnetic resonance imaging MRI is the most sensitive imaging method for breast cancer detection Its introduction in breast cancer screening programs has been discussed in the last decade Currently in combination with mammography the gold standard screening method MRI is recommended to screen women at high genetic risk for developing breast cancer Despite its high sensitivity to detect breast cancer few articles discuss the presence of false negative results obtained by the MRI exam and the reasons for these results False negative results associated with an inadequate study method the histological lesion type and the background breast parenchymal enhancement pattern are reported in the literature For example concerning the histological type low grade ductal carcinoma in situ DCIS is considered to be related to the lack of lesion enhancement in the dynamic phases which is a determinant for the negative result Regarding the background enhancement pattern it is believed that moderate and intense patterns have a higher correlation with false negative results Main body This study aims to discuss the reasons for false negative MRI results using cases studied in our department The discussion is based on cases of breast carcinoma diagnosis that were negative on MRI studies The enhancement patterns of breast masses were correlated with the background enhancement pattern and the histological tumor type The cases included DCIS invasive ductal carcinoma invasive lobular carcinoma and interval carcinoma Conclusion False negative MRI results can occur in all three types of kinetic curves All carcinomas show enhancement after the injection of contrast however if the enhancement is identical to the parenchyma its presence is not noticeable It is always important to consider the assessment of the spatial morphology of the lesion by MRI
磁共振成像(MRI)是检测乳腺癌最敏感的成像方法,在过去十年中一直在讨论将其引入乳腺癌筛查项目中。目前,与乳房x光检查相结合的金标准筛查方法MRI被推荐用于筛查具有乳腺癌高遗传风险的女性,尽管其检测乳腺癌的灵敏度很高,但很少有文章讨论MRI检查中假阴性结果的存在假阴性结果与研究方法不充分有关,组织学病变类型和背景乳腺实质增强模式有文献报道,例如,关于组织学类型低级别导管原位癌,DCIS被认为与动态阶段缺乏病变增强有关,这是阴性结果的决定因素关于背景增强模式,人们认为本研究旨在通过我科研究的病例,探讨MRI假阴性结果的原因,讨论基于MRI阴性诊断的乳腺癌病例,乳房肿块的增强模式与背景增强模式和组织学肿瘤类型相关,包括DCIS浸润性导管癌浸润性小叶癌结论三种类型的MRI动态曲线均可出现假阴性结果。所有的癌在注射造影剂后均表现为增强,但如果增强与实质相同,则不明显。考虑MRI对病变空间形态的评估总是很重要的
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引用次数: 2
Laparoscopic approach for the treatment of left-sided acute appendicitis associated with malrotation 腹腔镜入路治疗左侧急性阑尾炎伴旋转不良
Pub Date : 2018-06-06 DOI: 10.15406/IJRRT.2018.05.00160
V. L. Abud, Fern, O. León, M. Jamel, R. Martinez
Acute appendicitis represents one of the most common causes of abdominal pain and is among the leading causes of general surgery emergencies,1,2 affecting around 6 to 7% of western world countries’ population.1 Aiming at reducing its morbimortality, prompt diagnosis and surgical intervention should be employed, and therefore it is recommended that physicians adopt a low threshold for suspecting appendicitis, almost always including it in the differential diagnosis of abdominal pain.
急性阑尾炎是腹痛最常见的原因之一,也是普通外科急诊的主要原因之一,影响了西方国家约6%至7%的人口为了降低其致死率,应及时诊断并进行手术干预,因此建议医生对阑尾炎的怀疑采取低阈值,几乎总是将其纳入腹痛的鉴别诊断。
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引用次数: 0
A case series of posterior reversible encephalopathy syndrome 后部可逆性脑病综合征1例
Pub Date : 1900-01-01 DOI: 10.15406/ijrrt.2021.08.00295
J. Oumerzouk
Introduction: The posterior reversible encephalopathy (PRE) is a clinico-radiologic syndrom characterized by seizures, consciousness’s disorder, visual loss, and headache associated with cerebral posterior abnormalities on imaging. It raises often a problem of differential diagnosis with cerebral infarction. Case reports: We report the case of five patients, the first followed for systemic lupus erythematosus, the second is hypertensive poorly follow-up, the 3 other patients were in postpartum after cesarean delivery. All our patients had generalized tonic-clonic seizures associated with an hypertensive peak without edema syndrome. Laboratory tests were unremarkable. The EEG showed epileptic abnormalities and brain MRI was in favor of a reversible posterior leukoencephalopathy. Evolution under treatment was favorable without recurrence with a decline of 20 months. Conclusion: Rapid regression clinical and radiolologic abnormalities suggest cerebral vosogenic oedema as mechanism of this disease and confirm its mildness. Nevertheless, PRE may not be reversible without an early control of causes.
简介:后路可逆性脑病(PRE)是一种临床-放射学综合征,以癫痫发作、意识障碍、视力丧失和头痛为特征,并伴有脑后路影像学异常。它经常引起脑梗死的鉴别诊断问题。病例报告:我们报告了5例患者,第一例随访为系统性红斑狼疮,第二例为高血压不良随访,其余3例患者均为剖宫产后产后随访。我们所有的病人都有全身性强直-阵挛性癫痫发作,伴有高血压高峰,无水肿综合征。实验室检查没有异常。脑电图显示癫痫异常,脑MRI显示可逆性后脑白质病。治疗后病情进展良好,无复发,病情下降20个月。结论:快速消退的临床和放射学异常提示脑vosogenic水肿是本病的发病机制,并证实其温和性。然而,如果不及早控制病因,PRE可能是不可逆转的。
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引用次数: 0
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International Journal of Radiology & Radiation Therapy
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