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左侧乳腺癌
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  left breast cancer
     Methods TT were performed in 35 patients underwent radiotherapy for left breast cancer.
     方法35例左侧乳腺癌术后患者按照放疗进程分为3组:A组,放疗前;
短句来源
     Objective To evaluate the value of tissue tracking (TT) in detecting left breast cancer radiotherapy-induced decrease of left ventricle early systolic function by measuring the systolic displacement of left ventricle.
     目的探讨应用组织追踪法(TT)测定左室壁收缩期位移评价左侧乳腺癌放疗后早期左室收缩功能的价值。
短句来源
     Conclusion TT is a nonvasive, sensitive, objective method to assess left breast cancer radiotherapy-induced early systolic function of left ventricle.
     结论组织追踪法可无创、敏感、客观地评价左侧乳腺癌放疗早期左室收缩功能。
短句来源
     Methods IBS%,CVIB of integrated backscatter parameters and E/A of conventional echocardiographic parameters were performed in 35 patients with left breast cancer for radiotherapy.
     方法35例左侧乳腺癌全程放疗患者按照放疗进程分为A组:放疗前;
短句来源
     Methods The paper simulated the dose distribution of women's left breast cancer after radical mastectomy by 6 and 9MeV electron beam irradiation, and TLD was used to measure.
     方法:以射线选用6及9MeV电子束的电子直线加速器对仿真人体组织等效模型所拟的典型成年女子左侧乳腺癌术后患者进行模拟照射,用热释光剂量仪进行实际测量。
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  left side breast cancer
     Dosimetry study of intensity modulated radiation therapy for left side breast cancer
     左侧乳腺癌调强放疗的剂量学研究
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  “左侧乳腺癌”译为未确定词的双语例句
     For FB and ABC plan, the mean lung dose(MLD), percentage of both lungs receiving 20Gy(V 20),ipsilateral lung V 20,the percentage of heart receiving 30Gy(V 30)were compared; for left-sided breast cancer patients, the mean dose of heart(D mean) were also compared.
     比较各计划全肺平均受量(MLD)、全肺接受20Gy的体积(V20)、患侧肺V20、左侧乳腺癌患者心脏V30和心脏平均受量(Dmean)等参数。
短句来源
     In this paper, the dose to tissues outside the radiation field was studied during the post operative radiotherapy of breast cancer with a 9 MeV electron beam from a medical linear accelerator or with 6 MV X rays, using a non uniform tissue equivalent phantom and stimulating the radiotherapy for a adult female patient with cancer in her left breast.
     本文借助非均匀组织等效拟人体模型(phantom ),模拟成年女性左侧乳腺癌术后放疗,研究了医用电子直线加速器产生的9 MeV电子束和6 MV X射线对乳腺癌放疗时靶外组织的受照剂量。
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  left breast cancer
Left breast cancer was diagnosed at the age of 46 and he received mastectomy and thoracic irradiation.
      
A presumptive diagnosis of left breast cancer with axillary lymph node involvement was made based on the findings of physical examination and needle biopsy of the left breast lump.
      
Left breast cancer was diagnosed 9 years after the renal transplantation, then colon cancers and meningeal epidermal meningioma were diagnosed, 10 years and 12 years post-transplant, respectively.
      


In this paper, the dose to tissues outside the radiation field was studied during the post operative radiotherapy of breast cancer with a 9 MeV electron beam from a medical linear accelerator or with 6 MV X rays, using a non uniform tissue equivalent phantom and stimulating the radiotherapy for a adult female patient with cancer in her left breast. The results show that when the fractional dose was 2.0 Gy, dose to body surface within the exposed region of chest wall was higher for electron beam and dose to...

In this paper, the dose to tissues outside the radiation field was studied during the post operative radiotherapy of breast cancer with a 9 MeV electron beam from a medical linear accelerator or with 6 MV X rays, using a non uniform tissue equivalent phantom and stimulating the radiotherapy for a adult female patient with cancer in her left breast. The results show that when the fractional dose was 2.0 Gy, dose to body surface within the exposed region of chest wall was higher for electron beam and dose to the left posterior chest wall in radiation field was obviously lower than that to the right outside the field and there was a large fluctuation in doses to tissues outside the field, but there was a small one for X rays. For X rays, the maximum dose was in mediastinum with a certain deepness. In the region of lymph nodes, doses to tissues adjacent to the target were high. With using shadow shields, doses to tissues outside the target were descended 9.4%~53.7% for electron beam and 19.7%~53.6% for X rays, but with using contact shields, they were decreased 44.2%~65.6% for X rays. (

本文借助非均匀组织等效拟人体模型(phantom ),模拟成年女性左侧乳腺癌术后放疗,研究了医用电子直线加速器产生的9 MeV电子束和6 MV X射线对乳腺癌放疗时靶外组织的受照剂量。结果表明,单次照射剂量20 Gy 时,在胸壁照射区域,电子束照射时体表的受照剂量较高,位于野内左后壁的剂量明显低于野外右乳腺的剂量,野外组织受照剂量波动较大,X 射线照射时野外组织受照剂量波动较小,受照剂量最高的是具有一定深度的纵膈;在淋巴引流区域,X射线照射时邻近靶区的组织受照剂量较高。阴影屏蔽可使电子束所致的靶外组织剂量下降94% ~537% ,使X射线所致的靶外组织剂量下降197% ~536% ;接触屏蔽可使X射线所致的靶外组织剂量下降442% ~656% 。

Objective To investigate the feasibility of internal mammary lymph node chain dissection by thoracoscopy in breast cancer patients.Methods Fifteen patients with breast cancer whose tumors located in central or internal place of breast were enrolled in the study.Five or six milliliter of methylene blue was injected into the subcutaneous parenchyma surrounding the tumor.Anesthesia and single-lung ventilation was performed by using a double-lumen endotracheal tube to permit collapse of the same lateral lung.The...

Objective To investigate the feasibility of internal mammary lymph node chain dissection by thoracoscopy in breast cancer patients.Methods Fifteen patients with breast cancer whose tumors located in central or internal place of breast were enrolled in the study.Five or six milliliter of methylene blue was injected into the subcutaneous parenchyma surrounding the tumor.Anesthesia and single-lung ventilation was performed by using a double-lumen endotracheal tube to permit collapse of the same lateral lung.The trocars were introduced through three thoracic incisions of less than 15 mm at the third,the fifth and the seventh intercostal spaces along the midaxillary line.Internal mammary node chain dissection was performed by a thoracoscopic grasper and ultrasonically activated scalpel.Length of the dissection procedure was recorded.Results Eleven patients underwent the thoracoscopic internal mammary node chain excision successfully.The procedure time of thoracoscopic internal mammary node chain excision ranged from 34 to 70 min [average(49.2±9.6) min].A total of 52 internal mammary nodes were removed and 4 patients failed the operation because of unfavorable local anatomic conditions.Internal mammary node metastasis were found in 5 patients,one patient with internal mammary node metastasis but no axillary node metastases.All of the internal mammary nodes were located from the first rib to the fourth intercostal space.There were no damages to the lungs,blood vessels,and other thoracic structures.Conclusion Thoracoscopic internal mammary node dissection can be performed feasibly and easily without any serious complications,which may improve the therapy for breast cancer patients with internal mammary nodal metastases.

目的探讨经胸腔镜行内乳淋巴链切除的可行性。方法选择肿瘤位于乳腺内侧或中央区的乳腺癌病人15例为研究对象。气管插双腔管全麻,术前肿块周围和皮下注射美蓝5~6 m l。腋窝清扫结束后,采用单腔通气使患侧肺萎陷。于腋中线第3、5、7肋间隙处分别置入腔镜、内镜分离钳和超声刀,切除内乳淋巴链送病理检查。结果11例右侧乳腺癌病人腔镜下成功切除内乳淋巴链。1例左侧中央区Ⅲc期病人术前化疗后内乳区水肿,内乳血管显示不清,行腔镜内乳淋巴结活检。1例左侧乳腺癌其内乳淋巴链被心包和主动脉覆盖,另2例乳腺癌因胸腔粘连均改经肋间隙胸膜外内乳淋巴结活检。11例中5例内乳淋巴结有癌转移,其中1例内乳淋巴结癌转移而腋窝淋巴结无转移。平均每例切除内乳淋巴结4.7(4.7±1.8)枚。内乳淋巴结均位于第1肋软骨至第4肋间隙之间。手术时间为34~70(49.2±9.6)m in。1例发生术后一过性低氧血症,经面罩吸氧好转。无出血、肺损伤、肺不张及肺部感染等手术并发症。结论胸腔镜内乳淋巴链清扫是可行的,手术操作简便、创伤较小。该手术方法有助于改善乳腺癌内乳淋巴结转移的治疗。

Objective To compared intensity modulated radiation therapy (IMRT) with conventional radiotherapy(CR) for the left side breast cancer after breast-conserving surgery in regard to the homogeneity of dose in the target area, cardiac dose and irradiation volume in the target area. Methods Thirty-eight patients received inverse planning of IMRT with dynamic multi-leaf collimation (dMLC). Prescription dose was 46Gy in breast volume with X-ray, and added electron boost dose was 14Gy in the tumor bed, with a total...

Objective To compared intensity modulated radiation therapy (IMRT) with conventional radiotherapy(CR) for the left side breast cancer after breast-conserving surgery in regard to the homogeneity of dose in the target area, cardiac dose and irradiation volume in the target area. Methods Thirty-eight patients received inverse planning of IMRT with dynamic multi-leaf collimation (dMLC). Prescription dose was 46Gy in breast volume with X-ray, and added electron boost dose was 14Gy in the tumor bed, with a total dose of 60Gy. Clinical target volume(CTV) and heart were evaluated with dose-volume histograms(DVH) in the two plans, with the t test taken with SPSS 11.0. Results Average received dose of 95% breast volume(D 95) was (4541±34),(4517±62)cGy, volume of 105% of dose prescription(V 105%) was 17.5%±17.6%,29.4%±26.3%, while V 110% was 0.3%±0.8%,3.7%±8.2% with IMRT and CR, respectively. Received 30Gy by the heart(V 30) was 4.6%±4.3%,18.8%±12.2%(P<0.01);V 40 was 1.4%±2.3%,14.3%±11.0%(P<0.01) with IMRT and CR, respectively. Conclusion IMRT can improve CTV dose distribution and reduce the cardiac dose and volume for the left breast cancer after breast-conserving surgery.

目的比较左侧乳腺癌保乳术后调强放疗与常规放疗靶区内剂量均匀性、心脏照射剂量和体积的差异。方法对38例左侧乳腺癌保乳术后,应用逆向调强计划,实施全乳腺两野调强放疗。处方剂量为靶区X线46Gy,瘤床应用常规电子线追加14Gy,总量为60Gy。在同一病例CT片上设计常规全乳切线野照射46Gy。在两种治疗方法剂量体积直方图上比较靶区和心脏受照剂量。应用SPSS11.0软件进行配对T检验,以确定调强放疗是否可改善靶区内剂量均匀度并减少心脏受照剂量。结果调强放疗、常规放疗计划中CTV的D95分别为(4541±34)、(4517±62)cGy,V105%分别为17.5%±17.6%、29.4%±26.3%(P<0.01);V110%分别为0.3%±0.8%和3.7%±8.2%(P=0.010)。心脏的V30分别为4.6%±4.3%、18.8%±12.2%(P<0.01);V40分别为1.4%±2.3%、14.3%±11.0%(P<0.01)。结论左侧乳腺癌保乳术后,调强放疗能改善靶区剂量分布、减少心脏受照剂量和体积。

 
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