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| 1 | Preoperative evaluation of colorectal cancer using CT colonography, MRI, and PET/CT显示文摘Imaging studies are a major component in the evaluation of patients for the screening,staging and surveillance of colorectal cancer.This review presents commonly encountered findings in the diagnosis and staging of patients with colorectal cancer using computed tomography(CT)colonography,magnetic resonance imaging(MRI),and positron emission tomography(PET)/CT colonography.CT colonography provides important information for the preoperative assessment of T staging.Wall deformities are associated with muscular or subserosal invasion.Lymph node metastases from colorectal cancer often present with calcifications.CT is superior to detect calcified metastases.Three-dimensional CT to image the vascular anatomy facilitates laparoscopic surgery.T staging of rectal cancer by MRI is an established modality because MRI can diagnose rectal wall laminar structure.N staging in patients with colorectal cancer is still challenging using any imaging modality.MRI is more accurate than CT for the evaluation of liver metastases.PET/CT colonography isvaluable in the evaluation of extra-colonic and hepatic disease.PET/CT colonography is useful for obstructing colorectal cancers that cannot be traversed colonoscopically.PET/CT colonography is able to localize synchronous colon cancers proximal to the obstruction precisely.However,there is no definite evidence to support the routine clinical use of PET/CT colonography. | Shigeyoshi Kijima Takahiro Sasaki Koichi Nagata Kenichi Utano Alan T Lefor Hideharu Sugimoto | 2014 | World Journal of Gastroenterology2014，20，45： | 46 |
| 2 | Multidisciplinary management of acute mesenteric ischemia:Surgery and endovascular intervention显示文摘Acute mesenteric ischemia(AMI)is a rare cause of the“acute abdomen”,characterized by impaired blood flow to the intestine.The principle of treatment is restoration of perfusion to ischemic bowel and resection of any necrotic intestine.Surgery and endovascular intervention are two complementary approaches to mesenteric ischemia.Endovascular intervention is not an alternative to the surgical approach,but it has the potential to improve the prognosis of patients with AMI when judiciously combined with a surgical approach.Due to the need for emergent treatment of patients with acute mesenteric ischemia,the treatment strategy needs to be modified for each facility.This review aims to highlight cutting-edge studies and provide reasonable treatment strategies for patients with acute mesenteric ischemia based on available evidence. | Takashi Sakamoto Tadao Kubota Hiraku Funakoshi Alan Kawarai Lefor | 2021 | World Journal of Gastrointestinal Surgery2021，13，8： | 6 |
| 3 | Laterally spreading tumors:Limitations of computed tomography colonography显示文摘AIM:To prospectively investigate the detection rate of laterally spreading tumors(LSTs)of the colorectum by computed tomography(CT)colonography(CTC).METHODS:Patients with LSTs measuring≥20 mm detected during colonoscopy were prospectively enrolled in the study.All patients underwent colonoscopy and subsequent CTC on the same day.CTC was performed using multi-detector CT without contrast in the prone and supine positions.Two radiologists blinded to the existence of LSTs read the virtual endoscopic images as well as 2-D images.LSTs were classified into granular and non-granular types based on colonoscopic appearance.RESULTS:Forty-seven pathologically proven LSTs were evaluated prospectively.Histology included adenomas in 19,mucosal cancers in 19 and T1 cancers in 9.The mean diameter of the LSTs was 35.1 mm.Twenty-eight(60%)LSTs were correctly identified by CTC,and the configuration was similar to the colonoscopic appearance in most cases.Detection rate for the granular type was significantly higher than that for the nongranular type(71%vs 31%,P=0.013).Detection rate of adenomas was significantly lower than mucosal cancers(32%vs 79%,P=0.008)and T1 cancers(32%vs 78%,P=0.042).CONCLUSION:The detection rate of LSTs by CTC,particularly the non-granular type was not acceptable.Practitioners should be aware of the relatively low detection rate when using CTC. | Kazutomo Togashi Kenichi Utano Shigeyoshi Kijima Yosuke Sato Hisanaga Horie Keijirou Sunada Alan T Lefor Hideharu Sugimoto Yoshikazu Yasuda | 2014 | World Journal of Gastroenterology2014，20，46： | 4 |
| 4 | Right anterior segmental hepatic duct emptying directly into the cystic duct in a living donor显示文摘A 35-year-old mother was scheduled to be the living donor for liver transplantation to her second son,who suffered from biliary atresia complicated with biliary cirrhosis at the age of 2 years.The operative plan was to recover the left lateral segment of the mother's liver for living donor transplantation.With the use of cholangiography at the time of surgery,we found the right anterior segmental duct(RASD) emptying directly into the cystic duct,and the catheter passed into the RASD.After repairing the incision in the cystic duct,transplantation was successfully performed.Her postoperative course was uneventful.Biliary anatomical variations were frequently encountered,however,this variation has very rarely been reported.If the RASD was divided,the repair would be very difficult because the duct will not dilate sufficiently in an otherwise healthy donor.Meticulous preoperative evaluation of the living donor's biliary anatomy,especially using magnetic resonance cholangiography and careful intraoperative techniques,is important to prevent bile duct injury and avoid the risk to the healthy donor. | Yasunao Ishiguro Masanobu Hyodo Takehito Fujiwara Yasunaru Sakuma Nobuyuki Hojo Koichi Mizuta Hideo Kawarasaki Alan T Lefor Yoshikazu Yasuda | 2010 | World Journal of Gastroenterology2010，16，29： | 2 |
| 5 | Hepatic portal venous gas after endoscopy in a patient with anastomotic obstruction显示文摘A 72-year-old male underwent a laparoscopic low anterior resection for advanced rectal cancer.A diverting loop ileostomy was constructed due to an anastomotic leak five days postoperatively.Nine months later,colonoscopy performed through the stoma showed complete anastomotic obstruction.The mucosa of the proximal sigmoid colon was atrophic and whitish.Ten days after the colonoscopy,the patient presented in shock with abdominal pain.Abdominal computed tomography scan showed hepatic portal venous gas(HPVG) and a dilated left colon.HPVG induced by obstructive colitis was diagnosed and a transverse colostomy performed emergently.His subsequent hospital course was unremarkable.Rectal anastomosis with diverting ileostomy is often performed in patients with low rectal cancers.In patients with anastomotic obstruction or severe stenosis,colonoscopy through diverting stoma should be avoided.Emergent operation to decompress the obstructed proximal colon is necessary in patients with a blind intestinal loop accompanied by HPVG. | Ai Sadatomo Koji Koinuma Rihito Kanamaru Yasuyuki Miyakura Hisanaga Horie Alan T Lefor Yoshikazu Yasuda | 2015 | World Journal of Gastrointestinal Surgery2015，7，2： | 2 |
| 6 | Seminal lymph node biopsy in patients with breast cancer using superparamagnetic iron oxide and a magnetometer 显示文摘 | Shiozawa M Lefor AT Hozumi Y | 2013 | Breast Cancer2013，20，3： | 1 |
| 7 | Natrition support and cancer显示文摘 | Cohen J Lefor AT | 2001 | Nutrition2001，17，78： | 1 |
| 8 | Favipiravir:A New Medicationfor the Ebola Virus Disease Pandemic显示文摘 | Nagata T Lefor AK Hasegawa M | 2014 | Disaster medicine and pub-lic health preparedness2014，，： | 1 |
| 9 | Computed tomography prediction of extraluminal spread and prognostic implications of lesion width in esophageal carcinoma显示文摘 | Lefor AT Merino MM Steinberg | 1988 | Cancer1988，62，4： | 1 |
| 10 | In vitro identification of human pro-B cells that give rise tu macrophages,natural killer cells,and T cells显示文摘 | Reynaud D Lefor N Nanie E | 2003 | Blood2003，101，11： | 1 |
| 11 | General management of gastrointestinal fistulas: Recognition, stabilization, and correction of fluid and electrolyte imbalances显示文摘 | Foster CE III Lefor AT | 1996 | Surg Clin North Am1996，76，5： | 1 |
| 12 | The physiologic effects of laparoscopy : applications in oncology显示文摘 | Ouellette JR Ko AS Lefor AT | 2005 | Cancer J2005，11，1： | 1 |
| 13 | Nutrition support and cancer显示文摘 | Cohen J Lefor AT | 2001 | Nutri- tion2001，17，78： | 1 |
| 14 | Stenosis after use of the double-stapling technique for reconstruction after laparoscopy-assisted total gastrectomy显示文摘 | Toru Zuiki Yoshinori Hosoya Yuji Kaneda Kentaro Kurashina Shin Saito Takashi Ui Hidenori Haruta Masanobu Hyodo Naohiro Sata Alan T. Lefor Yoshikazu Yasuda | 2013 | Surgical Endoscopy2013，，10： | 1 |
| 15 | Three-step method for ultrasoundguided central vein catheterization显示文摘 | Tokumine J Lefor AT Yonei A | 2013 | Br J Anaesth2013，110，3： | 1 |
| 16 | Safety of laparoscopic splenectomy in elderly patients with idiopathic thrombocytopenic purpura显示文摘 | FASS S M HUI T T LEFOR A | 2000 | Am Surg2000，66，9： | 1 |
| 17 | Stafin therapy and myocardial no-reflow显示文摘 | Calvert J W Lefor D J | | 0，，03： | 1 |
| 18 | Laparoscopic splenectomy in patients with hematolopic diseases显示文摘 | Flowers JL Lefor AT Steers J | 1996 | Ann Surg1996，224，： | 1 |
| 19 | Management of the sensitized cardiac recipient: the use of plasmapheresis and intravenous immunoglobulin显示文摘 | Leech S H Lopez-Cepero M Lefor W M | 2006 | Clin Transplant2006，20，4： | 1 |
| 20 | The physiologic effects of laparoscopy:applications in oncology显示文摘 | Ouellette JR Ko AS Lefor AT | 2005 | Cancer J2005，11，1： | 1 |
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