Shunsuke Imanishi
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View article: Texture analysis of <scp>CT</scp> colonography to develop a novel imaging biomarker for the management of colorectal cancer
Texture analysis of <span>CT</span> colonography to develop a novel imaging biomarker for the management of colorectal cancer Open
Background Recent studies have focused on evaluating the biomarker value of textural features in radiological images. Our study investigated whether or not a texture analysis of computed tomographic colonography (CTC) images could be a nov…
View article: Correction: An artificial intelligence-based nerve recognition model is useful as surgical support technology and as an educational tool in laparoscopic and robot-assisted rectal cancer surgery
Correction: An artificial intelligence-based nerve recognition model is useful as surgical support technology and as an educational tool in laparoscopic and robot-assisted rectal cancer surgery Open
View article: An artificial intelligence-based nerve recognition model is useful as surgical support technology and as an educational tool in laparoscopic and robot-assisted rectal cancer surgery
An artificial intelligence-based nerve recognition model is useful as surgical support technology and as an educational tool in laparoscopic and robot-assisted rectal cancer surgery Open
View article: Prognosis and predictive factors of conversion surgery for initially unresectable advanced colorectal cancer
Prognosis and predictive factors of conversion surgery for initially unresectable advanced colorectal cancer Open
Purpose The aim of this study was to report the outcomes of conversion surgery for initially unresectable advanced colorectal cancer and to identify factors that enable successful conversion surgery. Methods We compared the outcomes of pat…
View article: A case of rectal metastasis of prostate cancer mimicking extramural growth-type rectal tumor
A case of rectal metastasis of prostate cancer mimicking extramural growth-type rectal tumor Open
Rectal metastases of prostate cancer are rare and may be difficult to diagnose. In this report, we describe a case in which an extramural growth-type rectal tumor was resected and pathologically diagnosed as prostate cancer metastasis. A 7…
View article: Novel Advances in Qualitative Diagnostic Imaging for Decision Making in Multidisciplinary Treatment for Advanced Esophageal Cancer
Novel Advances in Qualitative Diagnostic Imaging for Decision Making in Multidisciplinary Treatment for Advanced Esophageal Cancer Open
Background: Recently, neoadjuvant therapy and the succeeding surgery for advanced esophageal cancer have been evaluated. In particular, the response to the therapy has been found to affect surgical outcomes, and thus a precise evaluation o…
View article: Efficacy and safety of mirogabalin for chemotherapy-induced peripheral neuropathy: a prospective single-arm trial (MiroCIP study)
Efficacy and safety of mirogabalin for chemotherapy-induced peripheral neuropathy: a prospective single-arm trial (MiroCIP study) Open
Background Chemotherapy-induced peripheral neuropathy (CIPN) is a painful, dose-limiting adverse effect of commonly used chemotherapeutic agents. The purpose of this exploratory study was to evaluate the efficacy and safety of mirogabalin …
View article: Small bowel adenocarcinomas with favorable prognoses by radical resection and adjuvant chemotherapy: a case series of five cases
Small bowel adenocarcinomas with favorable prognoses by radical resection and adjuvant chemotherapy: a case series of five cases Open
Background Small bowel cancer is very rare, accounting for less than 5% of all gastrointestinal cancers, and small bowel adenocarcinoma accounts for approximately 40% of all small bowel cancers. Small bowel adenocarcinoma is often found in…
View article: Treatment Outcome of Resection of Disseminated Peritoneal Metastases from Colorectal Cancer
Treatment Outcome of Resection of Disseminated Peritoneal Metastases from Colorectal Cancer Open
More than a few cases of colorectal peritoneal metastasis, which is thought to be difficult to cure, were cured by resection of disseminated nodules without resorting to highly invasive treatment.
View article: Diagnostic performance of diffusion-weighted magnetic resonance imaging in assessing lymph node metastasis of esophageal cancer compared with PET
Diagnostic performance of diffusion-weighted magnetic resonance imaging in assessing lymph node metastasis of esophageal cancer compared with PET Open
View article: Treatment strategy and outcome of anastomotic leakage after left-sided colorectal cancer surgery –Non-surgical V.S. Surgical treatment–
Treatment strategy and outcome of anastomotic leakage after left-sided colorectal cancer surgery –Non-surgical V.S. Surgical treatment– Open
Anastomotic leakage (AL) after left-sided colorectal cancer surgery is one of the most serious complication. Once anastomotic leakage occur, we have to select the treatment, non-surgical or surgical. The aim of this study is to evaluate th…
View article: Imaging biomarkers for the treatment of esophageal cancer
Imaging biomarkers for the treatment of esophageal cancer Open
Esophageal cancer is known as one of the malignant cancers with poor prognosis. To improve the outcome, combined multimodality treatment is attempted. On the other hand, advances in genomics and other "omic" technologies are paving way to …
View article: Diagnostic and clinical usefulness of thin-slice CT/DWI in the diagnosis of esophageal cancer lymph node metastasis
Diagnostic and clinical usefulness of thin-slice CT/DWI in the diagnosis of esophageal cancer lymph node metastasis Open
View article: Preoperative chemoradiotherapy using S-1 combined with celecoxib for advanced lower rectal cancer: Phase I/II study
Preoperative chemoradiotherapy using S-1 combined with celecoxib for advanced lower rectal cancer: Phase I/II study Open
We failed to show a synergistic or additive therapeutic effect of preoperative CRT using S-1, combined with celecoxib, for lower advanced rectal cancer beyond CRT using 5 FU or capecitabine alone. The incidence of complications, evidently …
View article: Incidence and risk factor of outlet obstruction after construction of ileostomy
Incidence and risk factor of outlet obstruction after construction of ileostomy Open
To determine the true cause of this disease, a prospective study with a large number of cases is needed. Since multiple terms are used for this condition, resulting in confusion, a consensus on the appropriate terms is also important.
View article: A Gastric Intramucosal Carcinoma (m Carcinoma) with a Submucosal Tumor-like Appearance
A Gastric Intramucosal Carcinoma (m Carcinoma) with a Submucosal Tumor-like Appearance Open
粘膜下腫瘍様の形態を呈した胃粘膜癌（m癌）を経験したので報告する．症例は64歳の女性．検診で胃体上部大彎前壁に粘膜下腫瘍様の病変を指摘され，1年3カ月経過観察の後に胃癌として診断され当科紹介となった．精査の結果，胃癌cT2N0M0と診断し，胃全摘術（D2郭清），脾臓摘出術を施行した．病理結果はwell differentiated adenocarcinoma（tub1），Type0-I，22×15×15mm，pT1a，ly0，v0，pN0，pStage IAであった．粘膜…
View article: Middle-segment Preserving Pancreatectomy for Multifocal Branch Duct Type Intraductal Papillary Neoplasms of the Pancreas
Middle-segment Preserving Pancreatectomy for Multifocal Branch Duct Type Intraductal Papillary Neoplasms of the Pancreas Open
症例は61歳の男性で，膵頭部と尾部に多発した分枝型膵管内乳頭粘液性腫瘍を認め，MRIおよび造影EUSで膵頭部病変は造影効果を示す壁在結節を伴っていた．経過観察中に，CA19-9が急上昇したため造影CTを施行したところ，膵頭部の囊胞に接して充実性腫瘤が出現した．尾部病変も造影効果のある壁肥厚を認めたことから，幽門輪温存膵頭十二指腸切除と膵体尾部切除を同時に行うmiddle-segment preserving pancreatectomy（以下，MSPPと略記）を施行した．術…
View article: Suture Granuloma With False-Positive Findings on FDG-PET/CT Resected via Laparoscopic Surgery
Suture Granuloma With False-Positive Findings on FDG-PET/CT Resected via Laparoscopic Surgery Open
A 61-year-old woman who had undergone total hysterectomy 16 years previously exhibited a pelvic tumor on computed tomography (CT). F-18 fluorodeoxyglucose (FDG) combined positron emission tomography (PET)/CT imaging revealed a solitary sma…
View article: A Case of Endometriosis of Ileum Presenting with Intestinal Obstruction
A Case of Endometriosis of Ileum Presenting with Intestinal Obstruction Open
症例は34歳，女性．開腹歴はなく，30歳時に子宮内膜症の診断を受けたことがあった．腹痛を主訴に前医を受診し，腸閉塞の診断で入院となり，イレウス管による保存的治療が施行された．小腸造影検査で回腸末端に狭窄像を認め，骨盤MRI検査では腸管子宮内膜症による小腸狭窄が強く疑われた．腸閉塞症状が軽快した後，精査加療目的で当院に紹介となった．回腸子宮内膜症に対してホルモン療法後に，腹腔鏡下手術を施行した．腹腔内を観察すると後膣円蓋と直腸前壁に子宮内膜症による軽度の癒着を認めた．また，回…
View article: Diffusion Weighted Magnetic Resonance Imaging Predicts the Pathological Response to Pre-surgical Treatment in Esophageal Carcinoma
Diffusion Weighted Magnetic Resonance Imaging Predicts the Pathological Response to Pre-surgical Treatment in Esophageal Carcinoma Open
目的:食道癌術前補助療法の組織学的奏効度判定におけるMRI拡散強調画像（Diffusion Weighted Imaging:DWI）の有用性を評価することが目的である．対象:術前補助療法を施行後に切除した食道癌患者70例．方法:補助療法前後にDWIを撮像し，組織学的奏効度別に腫瘍部の拡散係数（Apparent Diffusion Coefficient:ADC）の推移を比較した．結果:組織学的奏効例では非奏効例に比べ治療後のADCは有意に上昇した（1.61 vs. 1.1…