Misc - 畠中　正光

SPECT/CTにおけるセンチネルリンパ節集積部位とリンパ節転移についての検討

島 宏彰, 九冨 五郎, 里見 蕗乃, 高丸 智子, 前田 豪樹, 鈴木 やすよ, 亀嶋 秀和, 大村 東生, 森 満, 畠中 正光, 長谷川 匡, 平田 公一

日本乳癌学会総会プログラム抄録集 ( (一社)日本乳癌学会 )  22回   464 - 464  2014年07月

上咽頭癌に対する強度変調放射線治療 当院での治療成績

北川 未央, 中田 健生, 坂田 耕一, 染谷 正則, 舘岡 邦彦, 堀 正和, 高木 克, 三浦 勝利, 畠中 正光

Japanese Journal of Radiology ( (公社)日本医学放射線学会 )  32 ( Suppl. ) 5 - 5  2014年02月

当科の食道がんに対する放射線治療成績

堀 正和, 中田 健生, 染谷 正則, 高木 克, 三浦 勝利, 北川 未央, 長谷川 智一, 坂田 耕一, 畠中 正光

Japanese Journal of Radiology ( (公社)日本医学放射線学会 )  32 ( Suppl. ) 5 - 5  2014年02月

当院における中下咽頭癌IMRTの治療成績

中田 健生, 北川 未央, 堀 正和, 長谷川 智一, 三浦 勝利, 染谷 正則, 舘岡 邦彦, 坂田 耕一, 畠中 正光

Japanese Journal of Radiology ( (公社)日本医学放射線学会 )  32 ( Suppl. ) 5 - 5  2014年02月

Epithelioid Sarcomaの画像

土屋 高旭, 玉川 光春, 河合 有里子, 荒谷 和紀, 兵藤 秀樹, 山 直也, 庄内 孝春, 佐藤 大志, 小野寺 麻希, 鷲尾 嘉一, 浅井 真友美, 畠中 正光

Japanese Journal of Radiology ( (公社)日本医学放射線学会 )  32 ( Suppl. ) 3 - 3  2014年02月

SPECT/CTによるセンチネルリンパ節の局在の検討

島 宏彰, 鈴木 やすよ, 里見 蕗乃, 高丸 智子, 亀嶋 秀和, 大村 東生, 九冨 五郎, 畠中 正光, 平田 公一

日本乳癌学会総会プログラム抄録集 ( (一社)日本乳癌学会 )  21回   374 - 374  2013年06月

PS-271-5 SPECT/CTによるセンチネルリンパ節の局在の検討(PS ポスターセッション,第113回日本外科学会定期学術集会)

島 宏彰, 鈴木 やすよ, 里見 蕗乃, 高丸 智子, 九冨 五郎, 畠中 正光, 平田 公一

日本外科学会雑誌 ( 一般社団法人日本外科学会 )  114 ( 2 )  2013年03月

CiNii

SPECT/CTによるセンチネルリンパ節の局在の検討

島 宏彰, 鈴木 やすよ, 里見 蕗乃, 高丸 智子, 九冨 五郎, 畠中 正光, 平田 公一

日本外科学会雑誌 ( (一社)日本外科学会 )  114 ( 臨増2 ) 899 - 899  2013年03月

Acute Cardiac Impairment Associated With Concurrent Chemoradiation Therapy for Esophageal Cancer

M. Hatakenaka, M. Yonezawa, T. Nonoshita, K. Nakamura, H. Yabuuchi, Y. Shioyama, M. Nagao, Y. Matsuo, T. Kamitani, H. Honda

INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS ( ELSEVIER SCIENCE INC )  84 ( 3 ) S40 - S40  2012年11月

研究発表ペーパー・要旨（国際会議）  

頭頸部癌化学放射線治療における治療前原発巣ADC値と局所再発との関連

畠中 正光, 中村 和正, 塩山 善之, 薮内 英剛, 長尾 充展, 松尾 芳雄, 神谷 武志, 陣内 三佳子, 米澤 政人, 樋口 江, 山崎 誘三, 本田 浩

日本磁気共鳴医学会雑誌   32 ( 1 ) 1 - 4  2012年02月

CiNii

Hibernating Myocardium in Chronic Ischemic Heart: Demonstration by 256-MSCT 4-D Color-coded Perfusion Imaging

Michinobu Nagao, Masamitsu Hatakenaka, Yoshio Matsuo, Shunya Sunami, Takeshi Kamitani, Mikako Zinnouchi, Ko Higuchi, Koichiro Abe, Shingo Baba, Yashushi Mukai, Taiki Higo, Kenji Sunagawa, Hiroshi Honda

CIRCULATION ( LIPPINCOTT WILLIAMS & WILKINS )  122 ( 21 )  2010年11月

研究発表ペーパー・要旨（国際会議）  

Pretreatment ADC of the Primary Lesion Correlates with Local Failure in Head and Neck Cancer Treated with Chemoradiotherapy or Radiotherapy

M. Hatakenaka, K. Nakamura, H. Yabuuchi, Y. Shioyama, Y. Matsuo, K. Ohnishi, S. Sunami, T. Kamitani, T. Yoshiura, H. Honda

INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS ( ELSEVIER SCIENCE INC )  78 ( 3 ) S445 - S446  2010年

研究発表ペーパー・要旨（国際会議）  

Steroid myopathy: Evaluation of fiber atrophy with T2 relaxation time - Rabbit and human study

M Hatakenaka, H Soeda, T Okafuji, H Yabuuchi, S Shiokawa, J Nishimura, H Honda

RADIOLOGY ( RADIOLOGICAL SOC NORTH AMERICA )  238 ( 2 ) 650 - 657  2006年02月

　概要を見る

Purpose: To determine whether muscle fiber atrophy associated with steroid myopathy can be detected with T2 relaxation time. Materials and Methods: Animal and human studies were approved by the ethics committee. Informed consent was obtained. Twelve rabbits were divided into a group that received 3 mg/kg of triamcinolone subcutaneously each day for 10 consecutive days (n = 6) and a control group that received saline (n = 6). Magnetic resonance (MR) imaging was performed before and after treatment. T2 and fat deposition ratio (FDR) of soleus and gastrocnemius muscles before and after treatment and between control rabbits and rabbits treated with steroids were compared by using two-way repeated analysis of variance and Bonferroni post hoc test to evaluate effects of steroid treatment. After imaging, rabbits were sacrificed. Extracellular space ratio (ECSR) and fiber diameter were examined. Correlation among T2, ECSR, and diameter of type 2 muscle fibers was analyzed with a Pearson correlation test with Bonferroni correction in gastrocnemius to determine factors affecting T2. In humans, T2 relaxation time and FDR of both muscles were compared between volunteers not treated with steroids and patients treated with steroids by using an unpaired t test to evaluate the effects of steroids. Results: In rabbits, T2 of gastrocnemius muscle was significantly (P < .01) longer after steroid treatment than before steroid treatment and was also significantly (P < .01) longer than after saline administration. T2 of the gastrocnemius showed no significant difference in control rabbits before or after saline administration or in control rabbits and rabbits before steroid administration. T2 of the soleus muscle or FDR of either muscle showed no significant difference. There was a significant correlation (P < .01) among T2, ECSR, and diameter of type 2 muscle fibers in the gastrocnemius. In humans, T2 of the gastrocnemius was significantly (P < .01) longer in patients than in volunteers. T2 of the soleus or FDR of either muscle showed no significant difference. Conclusion: Muscle fiber atrophy associated with steroid myopathy is detectable as prolongation of T2 relaxation time in the gastrocnemius muscle; the authors believe prolongation of T2 relaxation time is mainly due to increased ECSR reflecting type 2 muscle fiber atrophy. (c) RSNA, 2005.

DOI

Transient uterine myometrial contraction associated with moles

M Hatakenaka, K Yoshimitsu, T Adachi, T Matsuda, N Wake, H Honda

JOURNAL OF MAGNETIC RESONANCE IMAGING ( JOHN WILEY & SONS INC )  19 ( 2 ) 182 - 187  2004年02月

　概要を見る

Purpose: To examine the incidence of transient distortion of uterine central tissue and myometrial hypointense areas observed on MR images in women with clinically suspicious moles. Materials and Methods: The study population consisted of six women aged 15-47 years with clinically suspicious moles (hydatidiform mole in four, invasive mole in one, and microscopic mole in one). The control study population was 105 reproductive-age women (18-52 years) without uterine malignancy, gestational trophoblastic disease, or pregnancy. MR images were analyzed to check for discrepancies of the uterine central tissue configuration. If a discrepancy was observed, the myometrial hypointense area, its diameter, and changes in its shape and location were analyzed. Results: Differences in uterine central tissue configuration and hypointense areas were observed in all six patients. In the control study, only seven cases showed uterine endometrial distortion, and five exhibited hypointense areas. These areas disappeared, changed in shape, or other hypointense areas appeared on subsequent MR images. Significant differences (P<0.01) in the incidence of uterine central tissue distortion and hypointense areas, and in their maximum diameter between the study and the control groups were observed. Conclusion: Uterine myometrial hypointense areas with central tissue distortion, most likely due to transient myometrial contraction, are frequently seen in women with clinically suspicious moles.

DOI

Xanthogranulomatous cholecystitis: importance of chemical-shift gradient-echo MR imaging

M Hatakenaka, T Adachi, A Matsuyama, M Mori, Y Yoshikawa

EUROPEAN RADIOLOGY ( SPRINGER-VERLAG )  13 ( 9 ) 2233 - 2235  2003年09月

速報，短報，研究ノート等（学術雑誌）  

DOI

Effect of muscular contraction on magnetization transfer detected at 1.5T

Magnetic Resonance in Medical Sciences   2(3); 151-154  2003年

DOI

Effect of muscular contraction on magnetization transfer detected at 1.5T

Magnetic Resonance in Medical Sciences   2(3); 151-154  2003年

DOI

Effects of aging on muscle T2 relaxation time - Difference between fast- and slow-twitch muscles

M Hatakenaka, M Ueda, K Ishigami, M Otsuka, K Masuda

INVESTIGATIVE RADIOLOGY ( LIPPINCOTT WILLIAMS & WILKINS )  36 ( 12 ) 692 - 698  2001年12月

　概要を見る

RATIONALE AND OBJECTIVES. To determine whether the T2 relaxation time of skeletal muscle is affected by aging and to compare the effects of aging between fast- and slow-twitch muscles in a human study. To investigate the mechanisms of age-related changes in T2 relaxation time in an animal (mouse) study. METHODS. T2 relaxation times of the soleus (slow-twitch, rich in type I fiber) and gastrocnemius (fast-twitch, rich in type II fiber) muscles were examined in 59 healthy human subjects, 22 to 76 years of age, by clinical magnetic resonance imaging. In mice, T2 relaxation times, fat ratios, and extracellular space ratios (extracellular space/intracellular plus extracellular space) of the spinalis (fast-twitch, rich in type II fiber) muscles were also examined (group of 7 old mice, 24-26 months; group of 7 young mice, 8-10 weeks). RESULTS. In the human study, the T2 relaxation time of the gastrocnemius muscle increased significantly with aging (r = 0.53, P < 0.01) while that of the soleus muscle did not. In the animal study, the T2 relaxation time of the spinalis muscle was significantly longer (P < 0.05) and the extracellular space ratio of the spinalis muscle significantly wider (P < 0.01) in old than in young mice. No significant difference in fat ratio was observed between old and young mice. A significant, positive correlation was seen between the extracellular space ratio and T2 relaxation time (r = 0.84, P < 0.01). CONCLUSIONS. The T2 relaxation time of fast-twitch muscle increases with aging, due mainly to increased extracellular space, reflecting age-related type II fiber atrophy.

DOI

Early expression of c-myc and c-fos genes as potential early indicators for late radiation damage of the mouse kidney measured by BUN evaluation

M Otsuka, M Hatakenaka, K Masuda

RADIOLOGY ( RADIOLOGICAL SOC NORTH AMER )  217   156 - 156  2000年11月

研究発表ペーパー・要旨（国際会議）  

Epidermal growth factor gene expression: Another potential early indicator for late radiation damage of the mouse kidney

M Otsuka, M Hatakenaka, K Ishigami, K Masuda

RADIOLOGY ( RADIOLOGICAL SOC NORTH AMER )  217   156 - 156  2000年11月

研究発表ペーパー・要旨（国際会議）