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1.
Munetaka Matoba Hiroyuki Tuji Yuzo Shimode Tamaki Kondo Kiyotaka Oota Hisao Tonami 《Journal of radiation research》2015,56(3):553-560
The aim of this study was to evaluate whether the lesion regression rate (ΔLR) based on the Response Evaluation Criteria in Solid Tumors (RECIST) criteria could be used for the prediction of treatment outcome in head and neck squamous cell carcinoma (HNSCC) patients treated with chemoradiotherapy (CRT) compared with FDG PET-CT. A total of 33 patients underwent MRI and PET-CT at pretreatment and at 8 weeks after CRT. We assessed the treatment outcome by analyzing the following parameters: the RECIST criteria, ΔLR, the European Organization for Research and Treatment of Cancer (EORTC) criteria, and pretreatment SUVmax of the primary tumor and node. The correlation between the analysis of the parameters and the results of the long-term follow-up of the patients was determined. The RECIST did not significantly correlate with locoregional control (LRC) or survival. The ΔLR was significantly lower for the lesions with locoregional failure (LRF) than for those with LRC. A threshold ΔLR of 48% revealed a sensitivity of 72.7% and specificity of 77.3% for the prediction of LRF. Progression-free survival (PFS) of patients with ΔLR ≥ 48% was significantly better than that of patients with ΔLR < 48% (P = 0.001), but not overall survival. There was a significant correlation between LRC and the EORTC (P = 0.02). The patients who achieved a complete response by the EORTC criteria showed significantly better PFS and overall survival (P = 0.01 and 0.04, respectively). The ΔLR was inferior to FDG PET-CT with respect to the prediction of patient survival; however, it may be useful for selecting patients in need of more aggressive monitoring after CRT. 相似文献
2.
The value of frequent positioning of treatment field in radiotherapy of esophageal cancer] 总被引:2,自引:0,他引:2
S Sugahara H Tujii H Tuji H Tatuzaki K Ohara Y Itai 《Nihon Igaku Hōshasen Gakkai zasshi. Nippon acta radiologica》1992,52(9):1308-1314
Since 1983 a clinical trial of proton beam radiotherapy has been conducted at the Proton Medical Research Center (PMRC) of the University of Tsukuba. We have made it a rule to do field localization by X-ray pictures before each treatment. For this purpose we have developed a localize-verify system consisting of a fluoroscopic unit and a real time digital image processing device. By using this system as well as X-ray films, field placement errors or corrected distance at field localization were measured in 11 patients with esophageal cancers. Measurements of corrected distances on a total of 177 localization attempts disclosed that correction by > 5 mm was necessary in 30.6% and by > 10 mm in 10.2% of all localization attempts. Corrected distances appeared to increase with age, possibly because the skin becomes looser and ambulatory status tends to be more limited in older patients. Field placement corrections of more than 5 mm were required in 66.7% of 60 localizations in patients > 80 years old. Two patients in whom the anatomical positions of the esophagus were easily movable are presented. The following common characteristics of these patients were considered high risk factors: they were more than 80 years old; lesions were located in the lower esophagus; and they had T1 tumors. These findings suggested that frequent positioning and verification of treatment fields are necessary in the accurate treatment of esophageal cancers, especially those in high-risk patients. 相似文献
3.
4.
NG da Silva AS Carreira EN Pedreira FM Tuji KL Ortega JD Pinheiro 《Head & face medicine》2012,8(1):23
ABSTRACT: Central giant cell lesions are benign intraosseous proliferative lesions that have considerable local aggressiveness. Nonsurgical treatment methods, such as intralesional corticosteroid injections, systemic calcitonin and interferon have been reported. Recently, bisphosphonates have been used to treat central giant cell lesions. A case of a 36-year-old male with a central giant cell lesion crossing the mandibular midline was treated with intralesional corticosteroids combined with alendronate sodium for the control of systemic bone resorption. The steroid injections and the use of bisphosphonates were stopped after seven months when further needle penetration into the lesion was not possible due to new bone formation. After two years, the bony architecture was near normal, and only minimal radiolucency was present around the root apices of the involved teeth. The patient was followed up for four years, and panoramic radiography showed areas of new bone formation. Thus far, neither recurrence nor side effects of the medication have been detected. 相似文献
5.
6.
Background/purpose
Surgery of umbilical pathology requires restoration of a normal umbilical appearance. Also, the umbilicus is used increasingly as the entry site during laparoscopic surgery. However, conventional approaches leave obvious scars. A simple alternative approach that creates a natural-looking umbilicus is described.Methods
The umbilicus is opened by creating 4 isosceles triangular skin flaps. Closure is by suture of the flap apex only, creating scaring that resembles a natural umbilicus.Results
Between November 1996 and March 2003, this technique was used in 204 children with umbilical hernia, 2 children with a small omphalocele, 1 child with a patent omphalomesenteric duct, 2 children with a urachal abscess, and 7 children with an umbilical granuloma. Five children underwent initial trocar insertion during laparoscopic surgery via this approach. All procedures were performed uneventfully. Transient erythema of one flap occurred in 64 patients (29.2%). Infection developed in 10 patients (5.0%) but was treated with oral antibiotics. The postoperative umbilical appearance was satisfactory in all but 5 patients.Conclusions
The 4-triangular-skin-flap approach is useful for umbilical diseases and laparoscopic umbilical port access. 相似文献7.
8.
Diagnostic laparoscopy in infertility: a retrospective study 总被引:2,自引:0,他引:2
Komori S Fukuda Y Horiuchi I Tanaka H Kasumi H Shigeta M Tuji Y Koyama K 《Journal of laparoendoscopic & advanced surgical techniques. Part A》2003,13(3):147-151
STUDY OBJECTIVE: To evaluate the role of laparoscopy in the diagnosis and therapy of infertility. DESIGN: Retrospective study. SETTING: Academically affiliated reproductive endocrinology practice. PATIENTS: One hundred seventy patients. INTERVENTION: Diagnostic/therapeutic laparoscopy. MEASUREMENTS AND MAIN RESULTS: One hundred seventy infertile patients underwent diagnostic laparoscopy between 1996 and 2000 in our clinic, and 109 of them were seen at follow-up more than 1 year after laparoscopy. Of the 109 patients, 77 (70.6%) were treated with assisted reproductive technology, such as in vitro fertilization-embryo transfer, and 32 (29.4%) were treated with conventional procedures. Of the 109 patients, 68 (62.4%), including 39 (50.6%) of the 77 treated with assisted reproductive technology and 29 (90.6%) of the 32 treated with conventional procedures, became pregnant. Of the 68 patients who became pregnant, 49 (72.1%) of them conceived within 1 year after laparoscopy. CONCLUSION: Laparoscopy is an important procedure in the treatment of infertility. 相似文献
9.
Nakanishi K Uchiyama T Akai F Yamada Y Yugami H Tuji K Taneda M 《No shinkei geka. Neurological surgery》2001,29(8):781-785
Intracranial dissecting aneurysm (DA) is much less frequent than berry aneurysm. Such dissection involves mostly the vertebral and basilar arteries, followed by the internal carotid and middle cerebral arteries. DA of the anterior cerebral artery (ACA) is relatively rare and little is known about its natural Development. Only 23 cases have been reported previously. Our present patient, a 44-year-old man, suddenly developed paresis of the left leg while bathing. Diffusion magnetic resonance imaging indicated an area of high signal intensity in the territory of the ACA. Angiography on day 3 following onset showed a DA involving the left A2 segment. Antiplatelet therapy was administered. Further luminal narrowing in the lesion was demonstrated by repeat angiography on day 17. Occlusion of the distal A2 segment was demonstrated together with sufficient collateral supply on day 41. Symptoms resolved completely. DA of the ACA usually presents with ischemic attacks. Its etiology remains uncertain, and its natural course is unclear. Surgical intervention is recommended for patients with intracranial hemorrhage, while non surgical therapies have achieved good outcomes in ischemic cases. 相似文献
10.
Liver transplantation for multiple liver metastases from solid pseudopapillary tumor of the pancreas
Solid pseudopapillary tumor (SPT) of the pancreas usually shows a benign clinical course. However, sometimes, distant metastasis may occur. Even in such case, the prognosis is good only if metastatic lesions are resected completely. We report the case of a 14-year-old girl with SPT of the pancreas and unresectable synchronous liver metastasis who underwent successful living donor liver transplantation. For 2 years, she has been disease free. This is the first report on transplantation to relieve liver metastasis of SPT. 相似文献