相关实验视频

Updated: Jan 7, 2026

Voluntary Breath-hold Technique for Reducing Heart Dose in Left Breast Radiotherapy

Voluntary Breath-hold Technique for Reducing Heart Dose in Left Breast Radiotherapy

Published on: July 3, 2014

在使用无心脏起器的患者的左乳房切除术后放射治疗期间满足剂量限制的挑战

Koyo Kikuchi¹, Ibuki Ota², Hiromori Sasaki²

¹Radiation Oncology, Iwate Medical University, Yahaba-cho, JPN.

|December 29, 2025

概括

无心脏起器 (LPM) 需要在乳腺切除术后放射治疗 (PMRT) 期间进行仔细规划,以避免超过设备剂量限制. 即使在LPM中,辐射剂量调整对于左侧PMRT期间的患者安全至关重要.

科学领域:

辐射瘤学辐射瘤学
医学物理医学物理
心脏病学心脏病学

背景情况:

一名60岁的女性患者有心脏节奏病史,出现左乳癌.
乳房切除术后的放射治疗 (PMRT) 是适用的,需要从传统的起器切换到无起器 (LPM),以减轻与辐射相关的风险.

研究的目的:

评估提供传统分成的左侧PMRT的可行性,同时遵守无心脏起器 (LPM) 的机构剂量限制.

主要方法:

计划进行三维形态放射治疗,准胸壁,关节骨上部和内部乳腺节点.
机构剂量限制为LPM的<200 cGy和LPM规划风险量 (PRV_LPM) 的<500 cGy.
辐射场被调整以减少LPM和PRV_LPM剂量,因为最初的计算超过了极限.

主要成果:

最初的治疗计划导致LPM剂量为314 cGy和PRV_LPM剂量为565 cGy,超过了定义的限制.
对胸壁领域下边界的修改成功地将LPM剂量降至102 cGy,PRV_LPM剂量降至154 cGy.
调整后的计划实现了对LPM的确定的剂量限制和其规划风险体积的遵守.

结论:

无心脏起器 (LPM) 植入单独不能保证在左侧PMRT期间遵守设备剂量限制.
在治疗接受PMRT的LPM患者时,仔细规划辐射场和遵守剂量限制是必不可少的.

关键词:

乳腺新生瘤的发生.心脏植入式电子设备是什么?心脏节奏节奏是指心脏节奏节奏.剂量限制剂量限制无心脏起器是一种无心脏起器.进行乳房切除术,即乳房切除术.乳房切除术后的放射疗法.放射治疗并发症放射治疗并发症放射治疗规划放射治疗规划

更多相关视频

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Published on: December 11, 2017

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Published on: February 6, 2019

相关概念视频

Cardiac Catheterization IV: Nursing Management

Cardiac Catheterization IV: Nursing Management

Nursing responsibilities before cardiac catheterization include:Assess for allergies and establish baseline health status.Before cardiac catheterization, assess the patient for allergies to contrast dye. Perform a comprehensive baseline assessment, including vital signs, heart and breath sounds, and a neurovascular assessment of the extremities, noting distal pulses, skin color, and temperature. Instruct the patient to fast for 8-12 hours before the procedure. Evaluate baseline laboratory...

Cardiac Catheterization III: Left Heart Catheterization

Cardiac Catheterization III: Left Heart Catheterization

Left heart catheterization is an invasive diagnostic procedure used to evaluate the function and structure of the left side of the heart. It is generally performed to diagnose and treat cardiovascular conditions such as valve abnormalities, coronary artery disease, and congenital heart defects.Diagnostic and therapeutic purposesLeft heart catheterization serves various diagnostic and therapeutic purposes, including:Assessing coronary artery bypass grafts.Evaluating coronary artery disease in...

Radiological Investigation III: Pulmonary Angiogram and PET Scan

Radiological Investigation III: Pulmonary Angiogram and PET Scan

Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...