BACKGROUND： The accurate measurements of various data of the bone diameters of foramen ovale of living person can change the methods of puncturing trigeminal gasserian ganglion via foramen ovale for treating trifacia...BACKGROUND： The accurate measurements of various data of the bone diameters of foramen ovale of living person can change the methods of puncturing trigeminal gasserian ganglion via foramen ovale for treating trifacial neuralgia from the experience of puncture operator only to puncture by taking the objective data of measurement as the evidence, which is good for improving the accuracy of puncturing trigeminal ganglion and reducing side effects. OBJECTIVE ： To observe the forms of foramen ovales in healthy adults displayed by volume rendering and multi-planar reconstruction after three-dimensional spiral CT thin-slice scan of skull base, and measure the longitudinal diameter and transverse diameter. DESIGN ： A repetitive observation and measurement SETTINGS ： Department of Neurosurgery and Department of Medical Imaging, Foshan Hospital of Traditional Chinese Medicine. PARTICIPANTS： Fifty healthy adults （100 sides）, who were examined with three-dimensional spiral CT scan, were randomly selected from the Department of Medical Imaging, Foshan Hospital of Traditional Chinese Medicine from January 2005 to January 2006, including 26 males and 24 females, aged 25-68 years with an average of 48 years old. They were all informed and agreed with the examination. METHODS ： The subjects were examined with the Philips 16-slice spiral CT-Mx 8000 IDT CT apparatus （Philips Company, Holland）, the scanning ranged from 2 cm below the canthomeatal line to the level of suprasellar cistem. The width of collimator was 0.75 mm, pitch was 0.663; tube current was 350 mA, voltage was 120 kV, resolution was 512×512 matrix; slice thickness of reconstruction was 1 mm, and interval was 0.5 mm. After the three-dimensional spiral CT thin-slice scan of skull base, the image post-processing techniques including volume rendering and multi-planar reconstruction were applied to observe the forms of foramen ovales, and measure the size, longitudinal diameter and transverse diameter of the foramen ovales. The figures of the foramen ovales were drawn with mouse along the boundary of bone porous margin and soft tissue. According to the indications, the diameters were measured with computer to observe the forms of foramen ovales. MAIN OUTCOME MEASURES ： The longitudinal diameter, transverse diameter and form of foramen ovales were observed. RESULTS： All the 50 healthy adults （100 sides） were involved in the analysis of results. （1） It was observed in the volume rendering images that foramen ovales had four forms of oval shape （77 sides）, kidney shape （12 sides）, round shape （7 sides）, ribbon shape （4 sides）. （2） The longitudinal diameters of left and right foramen ovales were （7.67±1.32） and （7.98±1.45） mm, and the transverse diameters were （4.04±0.83）, （4.09±1.07） mm; There was no obvious difference between left and right longitudinal diameters （t = 1.63, P = 0.11 ）, and left and right transverse diameters were close （t = 0.45, P= 0.65）. CONCLUSION ： The non-invasive techniques of volume rendering and multi-planar reconstruction after three-dimensional spiral CT thin-slice scan can clearly display the formand size of foramen ovale in healthy adults.展开更多
目的探讨LowTE 3D-VIBE联合DWI序列在诊断食管癌锁骨上淋巴结转移中的临床应用价值。方法回顾性收集食管癌患者的临床及影像资料,所有患者均接受食管MRI检查,以锁骨上淋巴结穿刺病理为参照标准将其分为转移组与非转移组。由两名放射医师...目的探讨LowTE 3D-VIBE联合DWI序列在诊断食管癌锁骨上淋巴结转移中的临床应用价值。方法回顾性收集食管癌患者的临床及影像资料,所有患者均接受食管MRI检查,以锁骨上淋巴结穿刺病理为参照标准将其分为转移组与非转移组。由两名放射医师在Low TE 3D-VIBE序列上记录锁骨上淋巴结的形态特征(短径、长径、边界、强化),并在DWI序列上测量ADCmean值。采用单因素及多因素逻辑回归分析组间差异及独立危险因素。绘制受试者操作特征(ROC)曲线分析各参数的诊断效能。结果共入组94例食管癌患者,其中锁骨上淋巴结转移组41例,非转移组53例。两名医师关于特征测量的一致性良好(ICC≥0.59)。两组间各特征单因素分析均存在统计学差异(P<0.05)。短径、强化特征及ADCmean是诊断食管癌锁骨上淋巴结转移的独立危险因素,其AUC分别为0.869,0.778与0.768,三者联合参数的AUC为0.922,与上述各单一参数间均存在统计学差异(P<0.05)。结论Low TE 3D-VIBE联合DWI序列诊断食管癌锁骨上淋巴结转移准确性高,值得临床推广。展开更多
Chronic suppurative otitis media(CSOM)is a prevalent condition in otolaryngology with significant medical and social implications,including hearing loss and severe intracranial complications.This article discusses the...Chronic suppurative otitis media(CSOM)is a prevalent condition in otolaryngology with significant medical and social implications,including hearing loss and severe intracranial complications.This article discusses the challenges in diagnosing cholesteatoma,a common complication of CSOM,particularly when using computed tomography(CT)and magnetic resonance imaging(MRI).We present three clinical cases where MRI,particularly in the non-EPI diffusion-weighted imaging(DWI)and apparent diffusion coefficient(ADC)modes,effectively identified the presence and extent of cholesteatoma that CT could not reliably distinguish due to overlapping features with other soft tissue formations.The high sensitivity of MRI,highlight its value in both primary diagnosis and assessment of recurrence.Our findings advocate for the incorporation of MRI into the diagnostic protocols for CSOM in the Republic of Kazakhstan,emphasizing the need for reliable epidemiological data to inform future research and prevent potential intracranial complications.展开更多
基金a grant fromTackle Key Problems in Sci-ence and Technology of FoshanCity, No. 200505075
文摘BACKGROUND： The accurate measurements of various data of the bone diameters of foramen ovale of living person can change the methods of puncturing trigeminal gasserian ganglion via foramen ovale for treating trifacial neuralgia from the experience of puncture operator only to puncture by taking the objective data of measurement as the evidence, which is good for improving the accuracy of puncturing trigeminal ganglion and reducing side effects. OBJECTIVE ： To observe the forms of foramen ovales in healthy adults displayed by volume rendering and multi-planar reconstruction after three-dimensional spiral CT thin-slice scan of skull base, and measure the longitudinal diameter and transverse diameter. DESIGN ： A repetitive observation and measurement SETTINGS ： Department of Neurosurgery and Department of Medical Imaging, Foshan Hospital of Traditional Chinese Medicine. PARTICIPANTS： Fifty healthy adults （100 sides）, who were examined with three-dimensional spiral CT scan, were randomly selected from the Department of Medical Imaging, Foshan Hospital of Traditional Chinese Medicine from January 2005 to January 2006, including 26 males and 24 females, aged 25-68 years with an average of 48 years old. They were all informed and agreed with the examination. METHODS ： The subjects were examined with the Philips 16-slice spiral CT-Mx 8000 IDT CT apparatus （Philips Company, Holland）, the scanning ranged from 2 cm below the canthomeatal line to the level of suprasellar cistem. The width of collimator was 0.75 mm, pitch was 0.663; tube current was 350 mA, voltage was 120 kV, resolution was 512×512 matrix; slice thickness of reconstruction was 1 mm, and interval was 0.5 mm. After the three-dimensional spiral CT thin-slice scan of skull base, the image post-processing techniques including volume rendering and multi-planar reconstruction were applied to observe the forms of foramen ovales, and measure the size, longitudinal diameter and transverse diameter of the foramen ovales. The figures of the foramen ovales were drawn with mouse along the boundary of bone porous margin and soft tissue. According to the indications, the diameters were measured with computer to observe the forms of foramen ovales. MAIN OUTCOME MEASURES ： The longitudinal diameter, transverse diameter and form of foramen ovales were observed. RESULTS： All the 50 healthy adults （100 sides） were involved in the analysis of results. （1） It was observed in the volume rendering images that foramen ovales had four forms of oval shape （77 sides）, kidney shape （12 sides）, round shape （7 sides）, ribbon shape （4 sides）. （2） The longitudinal diameters of left and right foramen ovales were （7.67±1.32） and （7.98±1.45） mm, and the transverse diameters were （4.04±0.83）, （4.09±1.07） mm; There was no obvious difference between left and right longitudinal diameters （t = 1.63, P = 0.11 ）, and left and right transverse diameters were close （t = 0.45, P= 0.65）. CONCLUSION ： The non-invasive techniques of volume rendering and multi-planar reconstruction after three-dimensional spiral CT thin-slice scan can clearly display the formand size of foramen ovale in healthy adults.
文摘目的探讨LowTE 3D-VIBE联合DWI序列在诊断食管癌锁骨上淋巴结转移中的临床应用价值。方法回顾性收集食管癌患者的临床及影像资料,所有患者均接受食管MRI检查,以锁骨上淋巴结穿刺病理为参照标准将其分为转移组与非转移组。由两名放射医师在Low TE 3D-VIBE序列上记录锁骨上淋巴结的形态特征(短径、长径、边界、强化),并在DWI序列上测量ADCmean值。采用单因素及多因素逻辑回归分析组间差异及独立危险因素。绘制受试者操作特征(ROC)曲线分析各参数的诊断效能。结果共入组94例食管癌患者,其中锁骨上淋巴结转移组41例,非转移组53例。两名医师关于特征测量的一致性良好(ICC≥0.59)。两组间各特征单因素分析均存在统计学差异(P<0.05)。短径、强化特征及ADCmean是诊断食管癌锁骨上淋巴结转移的独立危险因素,其AUC分别为0.869,0.778与0.768,三者联合参数的AUC为0.922,与上述各单一参数间均存在统计学差异(P<0.05)。结论Low TE 3D-VIBE联合DWI序列诊断食管癌锁骨上淋巴结转移准确性高,值得临床推广。
文摘Chronic suppurative otitis media(CSOM)is a prevalent condition in otolaryngology with significant medical and social implications,including hearing loss and severe intracranial complications.This article discusses the challenges in diagnosing cholesteatoma,a common complication of CSOM,particularly when using computed tomography(CT)and magnetic resonance imaging(MRI).We present three clinical cases where MRI,particularly in the non-EPI diffusion-weighted imaging(DWI)and apparent diffusion coefficient(ADC)modes,effectively identified the presence and extent of cholesteatoma that CT could not reliably distinguish due to overlapping features with other soft tissue formations.The high sensitivity of MRI,highlight its value in both primary diagnosis and assessment of recurrence.Our findings advocate for the incorporation of MRI into the diagnostic protocols for CSOM in the Republic of Kazakhstan,emphasizing the need for reliable epidemiological data to inform future research and prevent potential intracranial complications.
