Objective To investigate the value of Periodically Rotated Overlapping Parallel Lines Enhanced Reconstruction (PROPELLER) in omitting the motion and susceptibility artifacts in head MRI. Methods Thirty nine cases of restless patients and eighteen cases with fixed metal artificial tooth underwent head MRI using T2WI or DWI with PROPELLER during April and Nov. in 2006 were analyzed respectively. The PROPELLER images and common MRI images were compared. Results The common images of 39 restless patients were not suitable to diagnosis because of moving artifact and pure imaging quality, while the PROPELLER T2WI images eliminate the artifact obviously and display the lesion clearly. Susceptibility artifacts were found in 18 patients with artificial tooth in common MRI images, and the artifacts were almost not found in PROPELLER DWI images and so satisfied the need of diagnoses. Conclusion PROPELLER T2WI and DWI can remove significantly the motion and susceptibility artifacts, and so acquire images of high resolution, low artifacts, and high quality to satisfy the need of diagnoses.

Objective To investigate the clinical efficacy of laparoscopic Soave's surgery for the treatment of congenital Hirschsprung's disease in infants (age ＜ 2 months).Methods The clinical data of 368 infants with congenital Hirschsprung's disease who received laparoscopic Soave's surgery at the Children's Hospital of Xuzhou City from June 2005 to June 2012 were retrospectively analyzed.Three Trocars with diameter of 0.5 cm were used.The colic ligament was freed and the mesentery was ligated laparoscopically,then the rectal mucosa was stripped for 5-7 cm in length,and was pulled out through the rectal muscle sheath.Patients were followed up via out-patient examination at postoperative month 1,3,6,12 to learn the frequency of defecation,constipation and anal stenosis.The follow-up was ended in June of 2013.Results Two patients were converted to open surgery,and the remaining 366 patients received laparoscopic surgery successfully,with no incidence of wound infection.The operation time,volume of blood loss and duration of hospital stay were (100 ±20)minutes,(5.4 ± 1.5) mL and (7.3 ± 1.5) days,respectively.The average time for antibiotics usage was (3.5 ± 1.6) days and the time for infusion was (3.8 ± 1.4) days.All the infants were followed up,and the mean time for postoperative follow-up was 4.5 years (range,1.0-8.0 years).Eleven patients were complicated with Hirschsprung's disease associated enteritis,7 patients with constipation,5 with anal stenosis,4 with fecal pollution.The condition of the infants was improved after conservative treatment.Conclusion Laparoscopic Soave's surgery is suitable for the treatment of congenital Hirschsprung's diseases in infants aged under 2 months,it has the advantages of small trauma,quick recovery,better cosmetic effects and few complications.

OBJECTIVETo explore the value of rectal mucosa stripping and pull-through from rectal muscle sheath of blind pouch in the treatment of congenital high anal atresia in the newborn.

METHODSClinical data of 232 newborns diagnosed as congenital high anal atresia undergoing operation from January 2001 to December 2010 were retrospectively analyzed. Among these patients, 168 underwent rectal mucosa stripping and pull-through from rectal muscle sheath of blind pouch through the previous of sagittal approach (intrathecal pull-through group), and 64 cases underwent the Pena procedure (Pena group). Patients were followed up for two years. Kelly score was used to estimate postoperative anorectal function. Defecography was used to examine the morphology of anorectum. Rectal pressure was measured as well.

RESULTSTwo years after operation, Kelly score revealed that 126 (75.0%) cases in the intrathecal pull-through group and 54 cases (84.4%) in the Pena group had good control defecation (P>0.05), while constipation rate was significantly lower in intrathecal pull-through group [8.3% (14/168) vs. 21.9% (14/64), P<0.05]. Postoperative barium defecography showed that defecation rectum maximum diameter was (2.2±0.3) cm in intrathecal pull-through group and (2.3±0.8) cm in the Pena group (P>0.05). Anorectal manometry showed rectal maximum capacity threshold value was (91.4±15.2) ml in the intrathecal pull-through group and (95.1±18.6) ml in the Pena group (P>0.05). There were no significant differences in defecography, anal bowel function and anorectal manometry between the two groups postoperatively (all P>0.05).

CONCLUSIONSRectal mucosa stripping and pull-through from rectal muscle sheath of blind pouch through the former sagittal can be completed with one-stage operation in newborn for the treatment of congenital high anal atresia, the efficacy of which is similar to the classic Pena operation. This procedure can avoid other operations, ameliorate the pains of newborns, decrease the burden of family, and has lower constipation rate, therefore it is a valid surgical option.

Anus, Imperforate ; surgery ; Female ; Humans ; Infant, Newborn ; Male ; Mucous Membrane ; surgery ; Rectum ; surgery ; Retrospective Studies