屏气的

Then the contour, and the volume of target and automatic matched field size for collimator at two respiratory phase were compared.

在同一定位条件下，对13例腹部肿瘤患者分别进行平静呼吸状态下吸气完毕屏气及呼气完毕屏气时的CT扫描。

Results The incidence of subcutaneous hemorrhage or bruising was significantly lower in breath holding group than that in control group

结果 屏气组的淤斑发生率4.1％显著低于对照组11.5％（P〈0.001）；短时压迫情况下，屏气组淤斑发生率显著低于对照组（2.4％和7.6％，P〈0.05）。

Purpose: To evaluate whether a single-breath hold and single-level test bolus-injection dynamic scanning was a good way of defining the portal contrast media peak time and its preliminary application with spiral CT portography.

目的 ：探讨一次屏气试验剂量团注单层动态扫描是否能很好确定门脉造影剂峰值及其在SCTP成像中的应用价值。

The only required treatment may be inflating the eustachian tube by performing Valsalva's maneuver several times a day.

需要治疗的唯一可能是夸大咽鼓管表演屏气的动作一天数次。

As Henri Cartier Bresson once said : To photograph is to hold one's breath, when all faculties converge to capture fleeting reality.

"由于亨利列松曾说："要照片，是屏气，当所有院系收敛捕捉稍纵即逝的现实。

Methods Special MR hydrography sequence was added to the MR imaging protocols of 112 patients undergoing MR examination of the thorax and upper abdomen. MR imaging sequences included;① Respiratory-gated HASTE T2W sequence;② Breath-hold FLASH TJW sequence;③ Respiratory-gated TSE 3D F2W sequence (3D MR hydrography sequence) in coronal plane.

对112例接受胸部和上腹部MR检查的病例加作MR水成像序列即呼吸门控快速自旋回波 3D T2W序列以显示乳糜池和胸导管，扫描序列包括：①呼吸门控半傅立叶单次激发快速自旋回波T2W序列：②屏气快速小角度激发T1W序列；③呼吸门控TSE 3D T2W冠状位扫描。

Methods Special MR hydrography sequence was added to the MR imaging protocols of 112 patients undergoing MR examination of the thorax and upper abdomen. MR imaging sequences included:①Respiratory-gated HASTE T2W sequence;②Breath-hold FLASH T1W sequence;③Respiratory-gated TSE 3D T2W sequence (3D MR hydrography sequence) in coronal plane.

对112例接受胸部和上腹部MR检查的病例加作MR水成像序列即呼吸门控快速自旋回波3D T2W序列以显示乳糜池和胸导管，扫描序列包括：①呼吸门控半傅立叶单次激发快速自旋回波T2W序列；②屏气快速小角度激发T1W序列；③呼吸门控TSE 3D T2W冠状位扫描。

Inspiratory breath-hold after 34 seconds, you can quickly feel the effect.

吸气后如屏气三四秒钟，你能够迅速感受到它的功效。

The optimal reconstruction windows of patients with stable HR(≤75 bpm and≥91 bpm) were concentrated in 71%,ranged from 65%-80%, and in 41%,ranged from 32%—50%,respectively.The prospectively ECG-gated DSCT coronary angiography can be used in patients with stable HR(≤75 bpm and≥91 bpm) in abstract.②To explore the clinical application of prospectively ECG-gated transverse DSCT coronary angiography.Methods Two hundreds patients[Body mass index:23-25 kg/m~2,122 patients(average HR≤75 bpm),78 patients(average HR≥91 bpm)]with suspected or known coronary artery disease underwent prospectively ECG-gated transverse DSCT coronary angiography,among them,30 patients underwent selectively coronary angiography,grouping them into 2 groups according to the average HR of scanning.Group A(17 cases,HR≤75 bpm),group B(13 cases, HR≥91 bpm),the DSCTA results were compared with SCAG.Then,calculate the accuracy of patients in each group and evaluate the agreement of accuracy between DSCTCA and SCAG by Kappa statistics.

方法回顾性分析200例行适应性前瞻性心电门控双源CT冠状动脉血管成像的患者(排除扫描过程中，屏气配合差，出现心律不齐的患者及行支架置入或搭桥术后复查的患者)，包括屏气时平均HR≤75 bpm患者122例，HR≥91 bpm患者78例；其中30例同期行选择性冠状动脉血管造影，按屏气时HR将其分为2组，A组17例：HR≤75 bpm，B组13例：HR≥91 bpm，分别与金标准SCAG对照，计算2组患者的阳性诊断准确率，应用SPSS 13.0统计学软件，利用Kappa检验比较每组患者的2种诊断方法诊断结果的一致性，利用两样本率x~2检验，比较2个心率组间的诊断准确率有无明显统计学差异，并计算此30例患者的平均有效辐射剂量。

Methods Ninety NSCLC patients underwent curative surgical resection after integrated 18F-FDG PET/CT and chest breath-hold spiral CT examination. Two experienced radiologists blindedly staged all primary tumors in consensus by CT and PET/CT images.

90例经手术病理证实的NSCLC患者均于原发肿瘤切除术前行18F-FDG PET/CT和胸部屏气螺旋CT扫描，由两名有PET/CT诊断经验的影像医师采用双盲法分别根据屏气CT和PET/CT图像对肿瘤行T分期。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。