Objective:To explore the intervention effect of cognitive-walking dual-task training on executive and walking function in patients with cerebral apoplexy.Methods:A total of 70 stroke patients who were hospitalized in the Department of Rehabilitation Medicine of Baoding Taihe Rehabilitation Hospital from June 2020 to October 2020 were selected as the study subjects.All 70 hemiplegic patients with stroke were randomly divided into control group ( n=35) and test group ( n=35) by random number table method, and a prospective study was conducted.The control group was given routine walking training, and the test group was given cognitive-walking dual-task training at the same time and frequency as the control group.E-Prime software was used to evaluate the executive function of patients before and 4 weeks after intervention, including three sub-tests of Flanker, 1-back and More-odd shifting, and the reaction time of each test was recorded.The score changes of Mini-Mental Status Examination (MMSE) and Modified Rankin Scale (MRS) were recorded.The single-task walking time, dual-task walking time and dual-task walking time cost during 10 m Walk Test were calculated.Finally, 33 cases in the experimental group and 31 cases in the control group completed the study.Finally, 33 cases in the experimental group and 31 cases in the control group completed the study. Results:After 4 weeks of intervention, the MMSE scores of the experimental group and the control group were improved compared with those before intervention (the experimental group (26.39±1.90) and (24.42±2.69), t=10.824, P<0.001; the control group (25.45±1.77) and (24.61±2.16), t=7.325, P<0.001), and the experimental group was significantly better than the control group ( t=2.049, P=0.045)). The duration of three tests of executive function in the experimental group and the control group was significantly shorter than that before the intervention (Flanker task: the experimental group (752.38±178.28) ms and (939.42±260.11) ms, t=10.467, P<0.001; the control group (863.40±227.86) ms and (951.67±265.93) ms, t=8.140, P<0.001.1-back task: the experimental group (983.31±314.16) ms and (1 242.10±444.77) ms, t=10.386, P<0.001; the control group (1 186.89±293.80) ms and (1 238.27±305.95) ms, t=9.569, P<0.001.More odd shifting task: the experimental group (1 121.29±260.17) ms and (1 362.32±352.80) ms, t=13.084, P<0.001; the control group (1 255.81±269.41) ms and (1 351.37±287.46) ms, t=8.550, P<0.001), and the experimental group was significantly better than the control group (Flanker task: t=2.198, P=0.032; 1-back task: t=2.691, P=0.009; more odd shifting task: t=2.044, P=0.045). The results of 10 m walking test in the experimental group and the control group were improved compared with those before the intervention (single task walking time: the experimental group (20.71±9.61) s and (26.10±13.88) s, t=6.312, P<0.001; the control group (22.42±9.60) s and (25.62±10.97) s, t=13.009, P<0.001). The duration of dual task walking: the experimental group (22.73±10.28) s and (31.64±16.07) s, t=7.931, P<0.001; the control group (28.30±11.72) s and (31.89±13.65) s, t=9.348, P<0.001.The cost of dual task walking: the experimental group (10.32±6.87)% and (23.26±11.40)%, t=10.602, P<0.001; the control group (27.39±7.38)% and (24.94±7.48)%, t=2.719, P=0.011). The 10 m walking test time of the experimental group was shorter than that of the control group ( t=2.027, P=0.047), and the walking time cost of the experimental group was lower than that of the control group ( t=9.583, P<0.001). Conclusion:Cognitive walking dual task training can improve the walking function of patients, which is more conducive to the recovery of executive function than conventional walking training.

Objective: To investigate the effect of ribosomal DNA (rDNA) copy number variation caused by hexavalent chromium exposure on DNA damage response in different cell lines, so as to provide insights into the involvement of hexavalent chromium-induced rDNA copy number variation in DNA damage responses. : Methods Human lung epithelial BEAS-2B cells and human embryonic lung MRC-5 cells were treated with 2 μmol/L potassium dichromate for 24 hours, and then cells were transferred to fresh media for further incubation, while cells treated with the same volume of phosphate buffer solution served as controls. Cells treated with potassium dichromate for 24 hours, and 3 and 7 days post-detoxification, were harvested, and rDNA copy number was quantified in cells using a quantitative fluorescent real-time PCR assay. Cell cycle, apoptosis and DNA damage were detected using a Muse cell analyzer, and the DNA damage was evaluated with the proportion of ataxia telangiectasia-mutated (ATM) gene activation, proportion of double-strand DNA breaks and the percentage of the H2A.X variant histone phosphorylatio. : Results The 45S and 5S rDNA copy numbers of were significantly higher in MRC-5 cells than in BEAS-2B cells [(1.54±0.26) vs. (1.02±0.18), P<0.05; (6.97±1.07) vs. (3.00±0.15), P<0.05]. The 45S rDNA copy number was lower in MRC-5 cells 3 days post-detoxification (0.80±0.04) than in controls (P<0.05), and was higher in BEAS-2B cells 3 days post-detoxification (1.43±0.07) than in controls (P<0.05) . G0/G1 phase arrest was found in MRC-5 cells 24 hours post-treatment, and the apoptotic rates were significantly higher in MRC-5 cells 3 and 7 days post-detoxification than in controls [(11.53±1.53)%, (18.33±0.70)% vs. (3.53±0.93)%, P<0.05]. The overall apoptotic rates 24 hours post-treatment and 3 days post-detoxification [(2.80±0.17)%, (3.33±0.57)% vs. (1.53±0.61)%, P<0.05], proportion of ATM gene activation 3 days post-detoxification [(3.37±0.67%) vs. (1.18±0.22)%, P<0.05], proportion of double-strand DNA breaks 3 days post-detoxification [(4.45±0.85)% vs. (0.97±0.21)%, P<0.05] and percentage of the H2A.X variant histone phosphorylation 3 days post-detoxification [(1.68±0.56)% vs. (0.29±0.06)%, P<0.05] in BEAS-2B cells were higher than in controls. Conclusions Hexavalent chromium-induced rDNA copy number variation affects DNA damage response in different cell lines. A stronger DNA damage response is found in BEAS-2B cells with a low rDNA copy number, and a relative stable response is observed in MRC-5 cells with a high rDNA copy number.

Objective: To investigate the effect of chrysotile exposure on ribosomal DNA (rDNA) copy number and DNA damage response, so as to provide insights into the mechanism of asbestos-induced carcinogenesis. Methods: Human pleural mesothelial MeT-5A cells were treated with chrysotile suspensions at doses of 1.25, 2.5 and 5 μg/cm2 (low-, medium-, high-dose group), while PBS served as controls. MeT-5A cells were harvested 6, 24, 48 and 72 h post-treatment, and the rDNA copy numbers and the BIRC5, HRAS, GINS4 and RRM2 mRNA expression were determined using a quantitative real-time PCR (qPCR) assay. The apoptosis of MeT-5A cells and DNA damage were detected using Muse cell analyzer. The rDNA copy numbers, DNA damage responses and BIRC5, HRAS, GINS4 and RRM2 mRNA expression were compared in MeT-5A cells treated with different doses of chrysotile suspensions. Results: There were significant differences in 45S rDNA copy numbers among low-, medium-, high-dose groups and the control groups 6, 48 and 72 h post-treatment with chrysotile suspensions, and significantly lower 45S rDNA copy numbers were measured in low-, medium- and high-dose groups than in the control group 6 h post-treatment, while significantly higher 45S rDNA copy numbers were found in the high-dose group than in low- and medium-dose groups 48 and 72 h post-treatment (all P<0.05). There were significant differences in 5S rDNA copy numbers among low-, medium-, high-dose groups and the control groups 24, 48 and 72 h post-treatment with chrysotile suspensions, and significantly lower 5S rDNA copy numbers were measured in medium- and high-dose groups than in the control group 24 and 48 h post-treatment, while significantly lower 5S rDNA copy numbers were found in medium- and high-dose groups than in the low-dose group 24, 72 h post-treatment (all P<0.05). There were significant differences in the overall apoptotic rate of MeT-5A cells among groups at different time points, and the overall apoptotic rate of MeT-5A cells were significantly higher in medium- and high-dose groups than in the control group (all P<0.05), with late-stage apoptosis predominantly detected. There were significant differences in the rates of ATM activation and DNA double-strand break in MeT-5A cells among groups 72 h post-treatment, and higher rates of ATM activation and DNA double-strand break were measured in medium- and high-dose groups than in the control group (all P<0.05). In addition, there were significant differences in the relative mRNA expression of BIRC5, HRAS, GINS4 and RRM2 genes among groups 24 and 48 h post-treatment, and significantly lower BIRC5, HRAS, GINS4 and RRM2 mRNA expression was quantified in medium- and high-dose groups than in the control group (all P<0.05). Conclusion Exposure to chrysotile may induce rDNA copy number variations and altered expression of nucleolar proteins in human pleural mesothelial cells, which may be involved in the regulation of DNA damage responses.

Objective:To determine the content of self-manufactured and imported lurasidone hydrochloride tablets in order to e-valuate their internal qualities. Methods:The determination of lurasidone hydrochloride tablets was performed by HPLC. The HPLC system consisted of a Waters C8 column (250 mm × 4. 6 mm, 3. 5 μm) and the mobile phase of 0. 05 mol·L-1 phosphate buffer solu-tion (pH 3. 0)-acetonitrile(60∶40), the detection wavelength was 230 nm, the flow rate was 1. 2 ml·min-1 and the column tempera-ture was 40℃, and the injection volume was 20μl. Results:The linear range of lurasidone hydrochloride was 0. 100 8-0. 806 4 mg· ml-1(r=0. 999 5). The average recovery was 99. 95% with RSD of 0. 31%(n=9). Conclusion:The method is simple, rapid, ac-curate, and reliable. The method can determine lurasidone hydrochloride tablets satisfactorily. According to the results, there are few differences among the self-manufactured and imported lurasidone hydrochloride tablets.

AIM To study the therapeutic effects of Neiyi Kangfu Tablets (Trionycis Carapax,Ostreae concha,Rhei Radix et Rhizoma,etc.) on adenomyosis and its possible mechanism of action.METHODS The mouse model for adenomyosis was set up by the pituitary allograft,and received the gavage of Neiyi Kangfu Tablets,Dan'e Fukang Decoction (Salviae miltiorrhizae Radix et Rhizoma,Curcumae Rhizoma,Paeoniae Radix rubra,etc.) and gestrinone,respectively,for three months.Western blot,real-time PCR,IHC were used to measure the expression of GPER-Ras-STAT3 in ectopic endometrium and entopic endometrium.RESULTS High doses of Neiyi Kangfu Tablets could significantly lower GPER protein and gene expression;down-regulate the Ras and STAT3 protein expression;reduce the lesion severity score of ectopic tissue morphology.Its curative effect was better than Dan'e Fukang Decoction and gestrinone.CONCLUSION Neiyi Kangfu Tablets may control the development of ectopic lesions by inhibiting the GPER-Ras-STAT3 pathway activity and weakening the production of estrogen.

Objective:To observe the effect of ankle stretching on ankle biomechanics, balance, walking ability and ability in the activities of daily living among stroke survivors.Methods:Eighteen hemiplegic stroke survivors were randomly divided into an experimental group ( n=9) and a control group ( n=9). In addition to routine medication and rehabilitation training, the experimental group received 20 minutes of ankle joint stretching daily while the control group underwent an additional twenty minutes of routine rehabilitation training. Before and after the treatment, both groups′ ankle joint stiffness (K), muscle strength, active range of motion (AROM) and passive range of motion (PROM) were evaluated. They were also assessed using the modified Ashworth scale (MAS), the Fugl-Meyer lower extremity assessment (FMA-LE), the Berg balance scale (BBS), the 6-minute walking test (6MWT) and the modified Barthel Index (MBI). Results:After two weeks of treatment significant improvement was observed in the AROM and muscle strength of both groups in dorsiflexion and plantarflexion. The average BBS and FMA-LE scores of both groups had also improved significantly. Significant improvement in the average PROM of plantarflexion and the K of dorsiflexion, as well as in average MBI score was observed only in the treatment group. After two weeks the treatment group′s average muscle strength in plantarflexion and dorsiflexion was significantly better than the control group′s.Conclusions:Stretching can reduce ankle stiffness, improve the range of motion, muscle strength, and ability of in the activities of daily living after a stroke.

Objective: To explore the changes in ribosomal DNA copy number in peripheral blood among patients with pneumoconiosis and its influencing factors, so as to provide insights into prevention and treatment of pneumoconiosis. Methods: Eighty-eight patients with pneumoconiosis who visited a designated hospital and 71 community residents with no history of pneumoconiosis or dust exposure were selected as the pneumoconiosis group and control group, and age, smoking history, drinking history and cumulative years of exposure to dust were collected through questionnaire surveys. The copy number of 45S rDNA and 5S rDNA was detected using real-time fluorescence quantitative PCR, and the differences between the two groups were compared. Factors affecting the copy number of 45S rDNA and 5S rDNA were identified by a multiple linear regression model. Results: The pneumoconiosis group had a median age of 56.00 (interquartile range, 15.25) and a mean cumulative dust exposure duration of (12.40±8.08) years, with 56.82% smoking and 62.50% drinking. The control group had a median age of 64.00 (interquartile range, 37.00) years, with 32.39% smoking and 26.76% drinking. The median copy number of 45S rDNA in the pneumoconiosis group was 1.29 (interquartile range, 0.59), which was lower than 2.10 (interquartile range, 1.88) in the control group; the median copy number of 5S rDNA in the pneumoconiosis group was 5.33 (interquartile range, 0.85), which was higher than 4.66 (1.34) in the control group (both P<0.05). Multiple linear regression analysis identified age (β=-0.034) and pneumoconiosis (β=-1.595) as factors affecting 45S rDNA copy number, age (β=-0.013) as a factor affecting 5S rDNA copy number, and age (β=0.018) as a factor affecting 5S rDNA copy number in the pneumoconiosis group (all P<0.05). Conclusions Compared with community residents with no history of pneumoconiosis or dust exposure, the copy number of 45S rDNA in peripheral blood among patients with pneumoconiosis is reduced and the copy number of 5S rDNA is increased.

Objective:To observe the intervention effect of neuromuscular joint facilitation (NJF)in patients with functional ankle instability (FAI).Methods:Fifty-three FAI subjects from North China University of Science and Technology from October 2020 to January 2021 were selected by cruamberland ankle instability tool (CAIT). According to the computer random number method, the 53 subjects were randomly divided into the control group (27 cases) and NJF group (26 cases). The control group received routine rehabilitation training, while the NJF group received NJF manipulation intervention on the basis of routine rehabilitation training. Before intervention and 8 weeks after intervention,ankle joint isokinetic muscle strength (invertor\evertor relative reak tergue) and the ratio of invertor to evertor of subjects in the two groups was evaluated and compared by Biodex isokinetic test training system, and the static balance ability of subjects in the two groups was evaluated and compared by Tecnobody balance instrument,and the dynamic balance ability of subjects in the two groups was evaluated and compared by star excursion balance test (SEBT), and the two groups were recorded and compared using the CAIT. A prospective cohort study was used. The measurement data of normal distribution are expressed by ± s. The mean between the two groups is compared by independent sample t-test, and the comparison before and after Intervention in the group is compared by paired t-test; The counting data were expressed in cases (%), and the comparison between groups was adopted χ 2 inspection. Results:After intervention, the NJF group at 60°/s angular velocity: invertor relative reak tergue (30.28±5.17) 0%, evertor relative reak tergue (28.93±5.15)%, the ratio of invertor to evertor (1.05±0.08) and 180°/s angular velocity: invertor relative reak tergue (27.17±5.24)%, evertor relative reak tergue (24.62±3.57)%, the ratio of invertor to evertor (1.10±0.12) were better than control group (27.05±5.95)%, (23.90±3.81)%, (1.13±0.15) and (24.12±5.36)%, (20.35±3.74)%, (1.19±0.18), and the differences were statistically significant ( t value were 2.11, 4.06, 2.35, 2.09, 4.25, 2.10, respectively; P value were 0.040, <0.001, 0.024, 0.042, <0.001, 0.040, respectively). After intervention, average AP speed of COP in the NJF group (open eyes: (23.19±5.25) mm/s; closed eyes: (65.65±10.51) mm/s), average ML speed of COP (open eyes: (23.73±4.73) mm/s; closed eyes: (72.08±10.28) mm/s), ellipse area of COP (open eyes: (913.77±348.90) mm 2; closed eyes: (3 271.65±1 024.48) mm 2) and perimeter of COP (open eyes: (845.04±146.68) mm; closed eyes: (2 055.42±548.89) mm) were lower than those of the control group (26.41±4.89) mm/s, (71.52±9.85) mm/s, (27.56±7.68) mm/s, (78.67±11.74) mm/s, (1 174.33±424.20) mm 2, (3 989.41±1 410.00) mm 2, (1 041.93±291.28) mm, (2 490.93±541.94) mm, the differences were statistically significant ( t value were 2.31, 2.10, 2.17, 2.17, 2.44, 2.11, 3.13, 2.97, respectively; P value were 0.025, 0.041, 0.034, 0.035, 0.018, 0.040, 0.003, 0.005, respectively). After intervention,the 8 directions of SEBT scores in the NJF group:Anterior (73.16±6.04)%, Anterolateral (65.90±5.54)%, Lateral (74.36±7.77)%, Posterolateral (88.05±6.76)%, Posterior (83.31±6.64)%, Posteromedial (86.01±7.62)%, Medial (77.39±8.44)% and Anteromedial (72.36±6.74)% were all higher than the control group (67.65±6.03)%, (61.08±5.96)%, (67.72±8.28)%, (78.33±8.06)%, (76.22±8.71)%, (79.31±7.24)%, (71.36±7.00)%, and (67.12±7.21)%,the differences were statistically significant ( t value were 3.32, 3.05, 3.01, 4.75, 3.33, 3.28, 2.83, 2.73, respectively; P value were 0.002 ,0.004, 0.004, <0.001, 0.002, 0.002, 0.007, 0.009, respectively). After intervention, the CAIT score of NJF group (23.04±3.96) points was higher than that of control group (19.15±3.56) points, and the difference was statistically significant ( t=3.76, P<0.001). Conclusion:NJF can significantly improve the internal and external muscle strength of the ankle joint and enhance the coordination of the internal and external muscle group, and effectively improve the static and dynamic balance ability of FAI patients.

Objective:To investigate the immediate and short-term effects of virtual games on balance function in patients with functional ankle instability(FAI).Methods:Fifty-six FAI subjects from North China University of Science and Technology from September 2020 to December 2020 were selected by cruamberland ankle instability tool(CAIT). According to the computer random number method,the 56 subjects were randomly divided into the control group and the observation group with 28 subjects in each group,and the prospective cohort study method was used for this study. Control group accepted routine balance training,observation group based in the control group carries on the virtual game training. Before and immediately after intervention and 4 weeks after intervention,the static balance ability of subjects in the two groups was evaluated and compared by Tecnobody balance instrument,and the dynamic balance ability of subjects in the two groups was evaluated and compared by star excursion balance test(SEBT),and the CAIT score of subjects in the two groups was recorded and compared. The measurement data conforming to normal is expressed in xˉ ± s means independent sample t-test or paired t-test. χ2 test was used for counting data. Results:Immediately after intervention,the 8 directions of SEBT scores in the observation group are significantly improved compared with those before intervention: Anterior(69.06±7.57)% and (63.69±8.05)%, Anterolateral (61.14±6.68)% and (55.77±7.39)%, Lateral (67.71±7.99)% and (62.93±7.56)%, Posterolateral (76.43±6.98)% and (71.31±7.86)%, Posterior (75.45±6.78)% and (68.72±6.65)%, Posteromedial (79.13±8.09)% and (72.72±9.03)%, Medial(72.67±7.43)% and (65.67±8.16)%, Anteromedial (67.75±8.30)% and (63.18±8.95)% ( t values were 8.03, 11.88, 9.72, 6.43, 19.53, 9.36, 11.06 and 6.46, respectively; all P<0.001), and the observation group was significantly better than the control group (63.24±6.72)%, (55.41±7.74)%, (61.49±8.37)%, (70.02±6.81)%, (69.06±9.46)%, (72.41±7.20)%, (66.37±6.57)% and (62.15±6.89)%. There were significant differences between the two groups ( t values were 3.04, 2.97, 2.84, 3.47, 2.90, 3.28, 3.36 and 2.75, respectively; P values were 0.004, 0.004, 0.006, 0.001, 0.005, 0.002, 0.001 and 0.008,respectively). After 4 weeks of intervention,the static balance parameters in the observation group were significantly reduced compared with before intervention under the condition of opened eyes and closed eyes (open eyes: average AP speed of COP (24.68±6.85) mm/s and (27.57±7.15) mm/s,average ML speed of COP (26.25±6.20) mm/s and (30.61±6.99) mm/s, ellipse area of COP (915.75±356.08) mm and (1 286.54±530.05) mm, perimeter of COP (823.82±173.80) mm and (1 142.89±297.03) mm ( t values were 4.02, 3.09, 4.89 and 6.74, respectively; all P<0.001); closed eyes:average AP speed of COP (66.82±15.02) mm/s and (73.71±11.12) mm/s, average ML speed of COP (76.93±13.36) mm/s and (84.39±10.05) mm/s, ellipse area of COP (3 318.54±958.75) mm and (4 174.21±1 310.54) mm, perimeter of COP (2 156.96±665.80) mm and (2 817.75±528.22) mm ( t values were 3.23,3.29,4.95,5.02, respectively; P values were 0.003, 0.003,<0.001,<0.001,respectively). Average ML speed of COP (open eyes:(26.25±6.20) mm/s), ellipse area of COP (open eyes: (915.75±356.08) mm;closed eyes: (3 318.54±958.75) mm and perimeter of COP (open eyes: (823.82±173.80) mm; closed eyes: (2 156.96±665.80) mm) in the observation group were lower than those of the control group(30.68±9.81) mm/s, (1 137.25±423.27) mm, (3 973.36±1 306.61) mm, (1 038.79±242.90) mm, (2 603.43±703.81) mm, the differences were statistically significant ( t values were 2.02,2.12,2.14,3.81,2.44,respectively; P values were 0.049,0.039,0.037, <0.001,=0.018, respectively). After 4 weeks of intervention,the 8 directions of SEBT scores in both groups were significantly improved compared with those before intervention (Anterior:observation group (72.84±6.76)% and (63.69±8.05)%,control group (69.05±6.16)% and (62.96±6.56)%. Anterolateral:observation group (65.24±7.68)% and (55.77±7.39)%,control group (60.65±8.11)% and (54.65±8.98)%. Lateral: observation group(73.97±8.80)% and (62.93±7.56)%, control group (68.34±9.14)% and (61.24±9.42)%. Posterolateral: observation group (81.68±6.69)% and (71.31±7.86)%, control group (76.39±6.78)% and (69.74±8.11)%. Posterior: observation group (81.41±7.86)% and (68.72±6.65)%, control group (75.21±8.48)% and (68.45±9.96)%. Posteromedial: observation group (82.77±8.69)% and (72.72±9.03)%,control group (78.38±6.84)% and (72.36±7.34)%. Medial:observation group (77.47±7.85)% and(65.67±8.16)%, control group (72.66±6.93)% and (65.95±7.09)%. Anteromedial:observation group(73.33±8.91)% and (63.18±8.95)%, control group (68.35±6.53)% and (61.66±6.80)% ( t values were 14.19, 10.17, 12.71, 12.35, 12.32, 8.99, 11.38, 6.95, 12.66, 7.94, 9.54, 11.53, 11.89, 12.87, 11.69 and 12.53, respectively; all P<0.001)), and the observation group was significantly better than the control group,the differences were statistically significant ( t values were 2.19, 2.18, 2.35, 2.94, 2.84, 2.10, 2.43 and 2.38, respectively; P values were 0.033, 0.034, 0.023, 0.005, 0.006, 0.040, 0.018 and 0.021, respectively). After 4 weeks of intervention,the CAIT score of subjects in both groups was significantly improved compared with before intervention (observation group (18.89±3.62) points and (14.93±4.09) points,control group (16.96±3.18) points and (15.25±3.81) points ( t values were 10.54 and 5.65; all P<0.001), and The CAIT score in observation group was higher than that in control group,the differences were statistically significant ( t=2.12, P=0.039). Conclusion:Virtual games could immediately improve the dynamic balance ability of FAI patients,which combined with conventional balance training intervention for 4 weeks significantly also improved the balance ability and ankle joint stability of FAI patients.

Objective: The aim of this study is to evaluate the diagnostic value of turbo spin-echo（TSE） diffusion weighted imaging（DWI） in temporal bone cholesteatoma. Method: A prospective evaluated of 76 patients with suspected sacral cholesteatoma was performed using a Philips Ingenia 3.0T superconducting magnetic resonance scanner and a 32-channel head coil with turbo spin-echo diffusion weighted imaging（TSE-DWI） sequence and conventional magnetic resonance scan, and underwent surgery within the next two weeks. The pathological result is the gold standard, and the imaging diagnosis and surgery are performed. The intraoperative observation and pathological results were compared. The diagnostic accuracy, sensitivity, specificity, positive predictive value and negative predictive value of TSE-DWI sequence in the diagnosis of temporal bone cholesteatoma were calculated. Result: Of the 76 patients with suspected temporal bone cholesteatoma, TSE-DWI scan was performed, 44 cases were diagnosed as cholesteatoma and 32 cases were non-cholesteatoma. Based on the pathology results, 46 cases were diagnosed as cholesteatoma, 30 cases were non-cholesteatoma. The accuracy of TSW-DWI sequence in the diagnosis of cholesteatoma was 89.47%, 3 cases were false negative and 5 cases was false positive. The sensitivity, specificity, positive predictive value and negative predictive value of TSE-DWI in the diagnosis of temporal bone cholesteatoma were 89.13%, 90.00%, 93.18%, and 84.38%, respectively. Conclusion The TSE-DWI sequence has high signal-to-noise ratio and can improve the diagnostic accuracy and specificity. TSE-DWI sequence is of great value in clinical diagnosis and treatment.