The raw data was processed by using axial, coronal and double oblique multi-planar reformation; Images obtained were graded in terms of quality with a 5-point scale(5=excellent, 4=good, 3=fair, 2=poor, and 1=nondiagnostic). In grading image quality at axial MPR, The radiologic specialists focused on the subarcuate fossa, tendon of tensor tympani, facial recess, vestibular aqueduct and pyramidal eminence, In grading image quality at coronal MPR, attention was given to the scute, crista transversa, fenestra cochleae, lateral malleal ligament and snake eyes signature of cranial nerve, In the grading of the image quality at double oblique MPR, the radiologic specialists concentrated on the malleus, incus, stirrup bone, upper bony semicircular and aquaeductus fallopii, and then to implement statistical analysis. In order to choose the minimum tube current values and the maximum pitch that can satisfy the diagnosis request, image quality of axial, coronal and double oblique reformation images was compared with different tube current groups. 15 ears of volunteers were used to test the validity with the scanning parameter. Subsequently noise, MTF and dose length product were measured by phantoms in different tube current and pitch, the parameters obtained were compared and taken into statistics analysis.

掃描模式使用臨床常用的顳骨螺旋掃描方式：管電壓120 kV亚洲黄色第一页，準(zhǔn)直寬度20×0.6 mm网友自拍日韩视频网站，視野200 mm外国免费黄色网站，重建矩陣512×512国产精品视频熟女一区二区，旋轉(zhuǎn)時(shí)間1 s/r，重建層厚0.6 mm在线视频青草亚洲，重建間隔0.3 mm日韩毛片2012一区二区，分別改變管電流(380、300国产三级免费在线、200女教师日韩精品视频、160、120和80 mA)和螺距(0.891久久婷婷人人澡人人澡、1.0和1.2)進(jìn)行掃描和重建黑人欧美视频巨粗巨大巨硬，然后對(duì)顳骨進(jìn)行橫斷面国产城中村自拍、冠狀面和雙斜面多平面重組，于重組后的橫斷層面圖像上選取弓形下窩黄色网站免费提供免费服务、鼓膜張肌腱中国国产精品无码理论片、面神經(jīng)隱窩、前庭導(dǎo)水管和錐隆起5個(gè)解剖結(jié)構(gòu)人人操人人摸人人干人人看，冠狀面重組圖像上選取盾板无码视频性交、橫嵴、蝸窗无码专区三级片免费用在线观看、面神經(jīng)的蛇眼征和錘骨外側(cè)韌帶5個(gè)解剖結(jié)構(gòu)黄片视屏无码免费，雙斜面重組圖像上選取錘骨、砧骨国产精品有限公司、鐙骨、上骨半規(guī)管和面神經(jīng)管5個(gè)解剖結(jié)構(gòu)欧美高清中文字幕国产精选，在雙盲的情況下由放射學(xué)專家分別對(duì)各管電流和螺距下掃描的重組圖像進(jìn)行評(píng)分91久久久无码国产，隨后進(jìn)行統(tǒng)計(jì)學(xué)處理，從中篩選出滿足診斷要求的最低管電流值和最大的螺距最新系列亚洲国产专区，分別采用患者25例(15耳)用該管電流值和螺距驗(yàn)證其可行性亚洲黄色网站干干干；然后利用模體分別測(cè)試各管電流和螺距下的圖像的空間分辨率、噪聲及其劑量長(zhǎng)度積大型日韩精品网站视频在线观看免费，并對(duì)測(cè)試所得參數(shù)數(shù)值進(jìn)行比較和統(tǒng)計(jì)學(xué)處理男女性爱过程视频。

The results are: 1 the stricture of the capillaries of stria vascularis was observed in most cochleae of rickety rats and, segmental deletions of the outer hair cells on the first turn of cochlea were found in a small number of rickety rats; 2 the perilymphatic ionized calcium concentration significantly re- duced and the threshold of CAP (Compound Action Poten- tials of the eighth nerve) significantly rose in rickety rats in comparison with those of normal control; 3 gentamicin results in an increase of the perilymphatic ionized calcium concentra- tion in rickety rats; 4 the cochleae of the rickety rats appeared to be less vulnerable to the ototoxicity of gentamicin than the normal one.

研究包括兩個(gè)方面，其一是&佝僂病的感覺(jué)神經(jīng)性耳聾及其對(duì)慶大霉素耳毒性作用的耐受性&国产粗口粗暴国产一级视频，系用大白鼠建立維生素D缺乏性佝僂病動(dòng)物模型欧美ⅹⅹ性欧美，發(fā)現(xiàn)：（1）佝僂病大白鼠耳蝸血管紋毛細(xì)血管狹窄，少數(shù)動(dòng)物耳蝸底回外毛細(xì)胞有節(jié)段性缺失欧美成人嘿咻在线视频；（2）佝僂病大白鼠的耳蝸鼓階外淋巴鈣離子濃度降低性无码在区，CAP（聽(tīng)神經(jīng)復(fù)合動(dòng)作電位，以下簡(jiǎn)稱CAP）聽(tīng)閾提高日韩精品无码加勒比综合；（3）慶大霉素可使佝僂病大白鼠耳蝸外淋巴鈣離子濃度上升久久中国一级黄色片；（4）佝僂病大白鼠耳蝸在功能和形態(tài)上都比正常者更能耐受慶大霉素的耳毒性損害。

Objective To investigate the distribution of NGF in the cochleae of guinea pigs and to explore the mechanism of NGF in the auditory path ways.

目的 觀察神經(jīng)生長(zhǎng)因子(nerve growth factor群P网址， NGF)在正常豚鼠耳蝸中的定位分布3p性交A片免费，為進(jìn)一步研究其在聽(tīng)覺(jué)通路中的作用機(jī)制提供依據(jù)。

The hearing thresholds were significantly increased in 10 out of 28 cochleae (35.7%) with CIEAg immunization.

對(duì)照組動(dòng)物僅在相應(yīng)時(shí)間及相同部位注射等量完全及不完全弗氏佐劑在线免费观看H片。

It is considered that the cochleae of rickety rats have higher tolerance to the ototoxicity of gentamicin as a result of impaired cochlear blood supply.

在研究佝僂病時(shí)耳蝸對(duì)氨基糖苷類抗生素的耐受性方面2021韩国三级在线无码中文，國(guó)內(nèi)外尚未見(jiàn)類似報(bào)道。

The immunized cochleae and normal control cochleae were examined for the expression of hsp70 with techniques of immunohistochemistry and in situ hybridization.

免疫動(dòng)物：實(shí)驗(yàn)組18 只豚鼠每只用200 μg/0.2 ml 粗制膜迷路抗原加等量完全弗氏佐劑制成的乳化液行首次免疫国产猛男猛女超爽免费视频。

METHODS An experimental method was developed which allowed the isolation and culture of GER cells from P1 rat cochleae using a combinatorial approach of enzymatic digestion and mechanical separation.

取出生后第1天的大鼠耳蝸久久亚洲私人国产精品，利用機(jī)械分離和酶消化相結(jié)合的方法分離出純的GER細(xì)胞永久免费A片在线看视频一，于含10%血清OMEM培基中進(jìn)行培養(yǎng)。

Methods A model of autoimmune inner ear disease was established by systemically immunizing the guinea pig with the homologous crude inner ear antigen. The immunized cochleae and normal control cochleae were examined for the expression of hsp70 with techniques of immunohistochemistry and in situ hybridization.

利用同種異體內(nèi)耳抗原免疫豚鼠久久成爱，以建立自身免疫性內(nèi)耳瞱ww.精品视频。╝utoimmune inner ear disease， AIED動(dòng)物模型91精品国产精品，并應(yīng)用免疫組織化學(xué)及原位雜位技術(shù)免费A片中文字幕网址，研究熱休克蛋白（heat shock protein， hsp70在正常對(duì)照組及 AIED 模型動(dòng)物實(shí)驗(yàn)組耳蝸中的表達(dá)情況色呦哟网站。

Results In the control animals, the expression of the hsp70-like protein appeared only in the spiral ganglion, whereas in the cochleae with CIEAg immunization, strong expression of the hsp70-like protein and its mRNA appeared in the spiral ganglion as well as in the stria vascularis and the spiral ligament. The hearing thresholds were significantly increased in 10 out of 28 cochleae (35.7%) with CIEAg immunization.

結(jié)果 對(duì)照組豚鼠螺旋神經(jīng)節(jié)細(xì)胞中存在hsp70樣蛋白基礎(chǔ)表達(dá)美女爆操视频；實(shí)驗(yàn)組28耳中10耳（35.7 ％）聽(tīng)閾提高≥10 dB；此組動(dòng)物螺旋神經(jīng)節(jié)細(xì)胞和血管紋www.在线看黄、螺旋韌帶hsp70及其mRNA表達(dá)明顯增強(qiáng)欧美人人妻人人操。

Five hours after the noise exposure, the cochleae were harvested. mitochondria energetic function, succinate dehydrogenase activity, in the hair cells of cochleae was evaluated with a colorimetric assay using blue tetrazolium monosodium salt. the sdh-labeled organs of corti were double stained with propidium iodide, a dna intercalating fluorescent probe used to visualize the morphologic viability of hair cell nuclei.

采用琥珀酸脫氫酶（succinate dehydrogenase，sdh）染色法進(jìn)行耳蝸基底膜細(xì)胞線粒體染色成年a大片免费视频，細(xì)胞核dna熒光染料碘化丙啶（propidium iodide国产在线网站，pi）雙重染色耳蝸基底膜，以未受噪聲暴露動(dòng)物為對(duì)照欧美日韩性生活，顯微鏡下觀察噪聲暴露后耳蝸基底膜核固縮和核腫脹毛細(xì)胞琥珀酸脫氫酶染色的變化91AV导航站。