在结直肠ESD中进行肌肉收缩的术前检测,使用计算机断层扫描-结直肠扫描
Shutaro Hike1, Tetsuro Maruyama1, Keisuke Matsusaka2
1Department of Frontier Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
概括
计算机断层扫描-结肠扫描 (CTC) 可以预测肌肉收缩 (MR) 在结肠直肠内镜亚粘膜剖析 (ESD) 之前. 在CTC上的急性抑郁类型是MR的强烈指标,有助于术前治疗计划.
科学领域:
- 胃肠病学 胃肠病学
- 放射学 放射学是一门学科.
- 在瘤学瘤学.
背景情况:
- 肌肉收缩 (MR) 复杂化了结直肠内镜下粘膜解剖 (ESD),增加了技术困难和穿孔的风险.
- 目前,没有可靠的手术前方法可以在结直肠ESD之前预测MR.
研究的目的:
- 研究计算机断层扫描-结肠镜 (CTC) 在预测结肠直肠ESD之前的MR的实用性.
- 为了确定特定的CTC发现,表明MR.
主要方法:
- 对69名接受结肠直肠ESD (验证1) 和55名手术切除结肠直肠癌 (验证2) 的患者进行了回顾性分析.
- 在CTC上分类结直肠瘤血清侧的外观为四种类型:膨胀,火柴棒,圆形陷和尖的陷.
- 与内镜观察到的MR (eMR) 和病理观察到的MR (pMR) 的CTC发现的相关性.
- 后勤回归分析以确定MR的预测因素.
主要成果:
- 在验证1中,所有5个eMR阳性病变都在CTC上表现出急性抑郁类型 (p < 0.0001).
- 在验证2中,急性抑郁类型 (OR 138) 和严重的亚粘膜纤维化 (OR 4453) 是pMR的独立预测因素 (p < 0.0001和p = 0.0079,分别).
- 在CTC分类方面,观察者之间达成了很高的共识 (κ = 0.93-0.95).
结论:
- 在CTC上的血清表面外观,特别是急性缩类型,是结直肠瘤中MR的强烈预测因素.
- CTC提供了一种非侵入性的手术前工具来识别MR,促进在结直肠ESD之前选择最佳治疗策略.
相关概念视频
Computed Tomography
8.9K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
8.9K
Imaging Studies III: Computed Tomography
406
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
406
Clot Retraction and Fibrinolysis
9.1K
After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.
9.1K
Design Example: Traverse Angle Computations
344
Traverse angle computations are a critical component of surveying, used to compute the internal angles within a closed traverse. A traverse consists of a series of connected lines forming a closed loop, often used for land boundary delineation or mapping. Calculating the internal angles ensures accuracy in the traverse geometry and is essential for checking survey data integrity.The process begins with known azimuths and bearings of the traverse sides. Internal angles at each vertex are...
344
Classification of Skeletal Muscle Fibers
59.6K
Skeletal muscles continuously produce ATP to provide the energy that enables muscle contractions. Skeletal muscle fibers can be categorized into three types based on differences in their contraction speed and how they produce ATP, as well as physical differences related to these factors. Most human muscles contain all three muscle fiber types, albeit in varying proportions.
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...
Slow-Twitch Muscle Fibers
Slow oxidative, muscle fibers appear red due to large numbers of capillaries and high levels of...
59.6K
Area Computation by the Alternative Coordinate Method
663
The alternative coordinate method, also known as the Shoelace Formula, is a technique for determining the area of a traverse using Cartesian coordinates. This method relies on the sequential arrangement of x and y coordinates for each point of the shape, ensuring accuracy and ease of application.In this approach, each corner's x and y coordinates are listed as fractions, with the x-coordinate as the numerator and the y-coordinate as the denominator. These coordinates are arranged sequentially...
663


