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Rui-Qiang Chen Kota Watanabe Naobumi Hosogane Tomohiro Hikata Akio Iwanami Ken Ishii Masaya Nakamura Yoshiaki Toyama Morio Matsumoto 《European spine journal》2013,22(11):2433-2437
Purpose
Although the occurrence and progression of AIS has been linked to low bone mineral density (BMD), the relationships between spinal curvature and bilateral differences in proximal femur BMD are controversial. Few correlation studies have stratified patients by curve type. The purpose of this study was to evaluate the relationships between spinal coronal profile and bilateral differences in proximal femur BMD in patients with adolescent idiopathic scoliosis (AIS).Methods
This study included 67 patients with AIS who underwent posterior correction and fusion surgery between January 2009 and October 2011. The mean age at the time of surgery was 17.4 ± 4.1 years. Bilateral proximal femur BMD was measured before surgery by dual-energy X-ray absorptiometry. We compared the proximal femur BMDs by determining the bilateral BMD ratio (left proximal femur BMD divided by that of the right). We evaluated correlations between coronal parameters, obtained from preoperative radiographs, and the BMD ratio using Pearson’s correlation analysis.Results
Patients with Lenke type 1 curve (48; all with a right convex curve) had a mean bilateral proximal femur BMD ratio of 1.00 ± 0.04. Patients with Lenke type 5 curve (19; all with a left convex curve) had a mean bilateral proximal femur BMD ratio of 0.94 ± 0.04, indicating that the BMD in the proximal femur on the right side (concave) was greater than that in the left (convex). Coronal balance was significantly correlated with the BMD ratio in both the Lenke type 1 and type 5 groups, with a correlation coefficient of 0.46 and 0.50, respectively.Conclusions
The bilateral proximal femur BMD ratio was significantly correlated with the coronal balance in AIS patients. When the C7 plumb line was shifted toward one side, the BMD was greater in the contralateral proximal femur. 相似文献54.
Minoru Shinozaki Yoichiro Okubo Daisuke Sasai Haruo Nakayama Somay Yamagata Murayama Tadashi Ide Megumi Wakayama Takao Ishiwatari Naobumi Tochigi Tetsuo Nemoto Kazutoshi Shibuya 《Journal of clinical microbiology》2013,51(1):295-298
In order to identify Trichosporon species in formalin-fixed and paraffin-embedded sections from which visual discrimination of non-glabrata Candida species is mostly ineffective but critical for the choice of antifungals, we tested the usefulness of a newly designed peptide nucleic acid probe (PNA) for in situ hybridization (ISH). Results confirmed the usefulness of ISH with our PNA probe in identifying Trichosporon species from Candida albicans. 相似文献
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Fumio Ikarashi Yuichi Nakano Naobumi Nonomura Masahiro Kawana 《Auris, nasus, larynx》1997,24(4):405-409
The radiological findings of adenolymphomas (Warthin's tumor) treated in six hospitals between 1985 and 1994 were compared with the operative and histological findings and the usefulness of the radiological examinations was evaluated. The total number of patients was 72. The mean age was 61.8 years; 61 were males and 11 were females. All tumors developed in the parotid gland. Tc-99m-pertechnetate salivary gland scanning was performed in 13 patients and an increased uptake of the isotope was observed in only six patients. Even if Tc-99m-pertechnetate salivary gland scanning does not reveal intense accumulation, this tumor should not be ruled out. By computed tomography (CT), ultrasonography (US), and magnetic resonance imaging (MRI), the margin of all tumors was evident; however, the contents of the tumor varied. The contents and multiplicity of the tumors were well demonstrated by MRI, which was found to be the most accurate imaging modality. 相似文献
56.
Ryoji Ohi Yutaka Hayashi Naobumi Endo Mohamed Ibrahim Masaki Nio Makoto Goto Daiji Iwami 《Surgery today》1994,24(4):318-322
Superior mesenteric portograms were performed on 30 patients with biliary atresia (BA) at the time of initial portoenterostomy
in 20, and at the stoma closure operation in 10. A withered-branch-shaped irregularity of the intrahepatic portal vein (PV)
and collateral vessels were seen in 2 of 11 patients with portal pressures (PP) of 200 to 300 mmH2O; in 1 of 2 patients with PPs of over 300 mmH2O at the initial operation; and in 3 jaundice-free patients with PPs of 285, 320, and 305 mmH2O, respectively, at the stoma closure operation. Collaterals were the only abnormalities seen in two additional jaundice-free
patients with PPs of 370 and 183 mmH2O, respectively. No anatomic changes in the extrahepatic PV at the porta hepatis were found on the portograms of either group
of patients. Thus, we conclude that portal dissection itself does not affect the PV structure anatomically, a finding which
has important implications in determining whether or not portoenterostomy adversely affects potential liver transplantation. 相似文献
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Kinoshita T Yashiro N Ihara N Funatu H Fukuma E Narita M 《Journal of computer assisted tomography》2002,26(6):1042-1046
PURPOSE: The purpose of this investigation is to evaluate the usefulness of diffusion-weighted half-Fourier single-shot turbo spin echo (DW-HASTE) imaging in differentiating invasive ductal carcinoma from fibroadenoma. METHOD: The DW-HASTE imaging was performed in patients with invasive ductal carcinoma (n = 16) and fibroadenoma (n = 6). Images were obtained with diffusion-sensitizing gradients of 0 and 700 mm(2)/s. The apparent diffusion coefficient (ADC) was calculated. RESULTS: The DW-HASTE imaging was not affected with susceptibility and chemical shift artifacts usually present in DW echo planar imaging. The DW-HASTE imaging had low tumor detectability (62%), however. The difference in mean ADC of invasive ductal carcinoma (1.216 +/- 0.189 x 10(-3)mm(2)/s) and fibroadenoma (1.495 +/- 0.181 x 10(-3)mm(2)/s) was statistically significant. CONCLUSION: Apparent diffusion coefficient measurement using DW-HASTE imaging is helpful in differentiating invasive ductal carcinoma from fibroadenoma. Nevertheless, DW-HASTE imaging has low detectability at present; therefore, more technologic improvement is desired. 相似文献