Abstract:
INTRODUCTION:Recent innovations in laser scanning technology provide a potentially useful tool for three-dimensional surface registration for image-guided surgery. The purpose of this study is to evaluate the clinical reliability of this technique in oral and maxillofacial surgical procedures using image-guided navigation. METHODS:In an experimental step, a stable anthropomorphic skull model with prelabeled markers was scanned and registered with laser surface scanning (z-touch, BrainLAB) and marker- based algorithms. The registration protocol was then repeated 25-times. Root mean square error (RMSE) and target difference values were compared for their suitability for this application. Twelve patients with different indications for oral and maxillofacial surgery were planned for image-guided surgery using a passive infrared surgical navigation system (VectorVision, BrainLAB). Preoperative computed tomography (CT) scans were carried out with newest 16-line multisclice CT-scanner (Siemens Somatom Sensation 16). The new markerless laser surface scanning technique was applied in all intraoperative patient registrations. Registration error was noted. The clinical application accuracy was determined for anatomical landmark localization deviation. RESULTS:In the experimental protocol a mean registration error (RMSE) or target difference of 1.3 (0.14) or 2.08 (0.49) mm for laser scanning and 0.38 (0.01) or 0.99 (0.15) mm for marker registration was found. The differences for RMSE and target localization were statistically significant (p < 0.005). Furthermore, a strong correlation between RMSE and target difference was found for laser scanning (r = 0.96) and marker registration (r = 0.95). During various clinical procedures involving oral and maxillofacial surgery, the overall error of the registration procedure determined as RMSE was 1.21 (0.34) mm. Intraoperatively, the mean clinical application accuracy was found to be 1.8 (0.5) mm. CONCLUSION:Three-dimensional laser surface scanning technique may be a interesting and useful approach to register the patient for image-guided procedures, particularly during oral and craniomaxillofacial surgery.
journal_name
Zentralbl Chirjournal_title
Zentralblatt fur Chirurgieauthors
Troitzsch D,Hoffmann J,Dammann F,Bartz D,Reinert Sdoi
10.1055/s-2003-40811subject
Has Abstractpub_date
2003-07-01 00:00:00pages
551-6issue
7eissn
0044-409Xissn
1438-9592journal_volume
128pub_type
杂志文章abstract:BACKGROUND:Invasive Candida infections following abdominal surgery represent a significant medical problem. This study initiates a benchmarking project to pinpoint the current role and epidemiology of candidemia in this patient group in German hospitals. MATERIAL AND METHODS:During the year 2010 data derived from 47 7...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:10.1055/s-0033-1350814
更新日期:2015-12-01 00:00:00
abstract::The present study shows the comparison of function and subjective judgement between two pouch-constructions after TME as treatment for rectal cancer. In 61 cases we constructed a J-Pouch, in 25 cases a transverse coloplasty pouch (TCP). The sex distribution was nearly the same. The influence of additional treatment li...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:10.1055/s-2002-33958
更新日期:2002-09-01 00:00:00
abstract::A follow-up check of 204 Monteggia fracture-dislocation in two clinics showed that in 84% of the cases an operative treatment led to good functional late results. In 65% of the patients treated conservatively, the mobility of the elbow was evidently limited. Plate fixation has been proved to stabilize ulna fractures, ...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract::Sequestration is defined as an area of abnormal pulmonary tissue not connected with the bronchial tree, supplied by an aberrant systemic artery and without a normal pulmonary function. Extralobar (ELS) and intralobar (ILS) forms are distinguished. During the year 2002 the authors diagnosed and operated upon two cases ...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:10.1055/s-2003-44806
更新日期:2003-11-01 00:00:00
abstract::Between 1978 and 1990 98 patients with gas gangrene were treated in the departments of general surgery and traumatology of the University of Kiel. The microbiological results of tissue samples and results of animal infectious experiments were correlated to the clinical outcome. It could be shown, that gas gangrene due...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract:INTRODUCTION:Shot peening and grit blasting techniques are used to modify surfaces of hip endoprostheses. Alumina blasting techniques using highly pure corund (Al (2)O (3)) particles create a rough surface of Titanium implants to achieve a better osteointegration in cementless total hip arthroplasty. An increasing numb...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:10.1055/s-2005-836801
更新日期:2005-08-01 00:00:00
abstract::Balloon dilatation and diathermic cutting of the papilla of Vater through a T-drainage tube or a percutaneous transhepatic biliary drainage catheter were performed in 12 patients with jaundice, cholangitis, or acute pancreatitis due to retained common duct stones or benign papillary stenosis. Both methods are an alter...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:
更新日期:1983-01-01 00:00:00
abstract:UNLABELLED:Over a long time laparascopy for pancreatic diseases was performed only as staging laparoscopy in order to find hidden metastasis. The laparoscopic pyloric preserving duodeno-pancreatectomy showed many problems and could not establish. Laparoscopic distal resection of pancreas is much more feasible due to la...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:10.1055/s-2006-947366
更新日期:2006-08-01 00:00:00
abstract::By the mean of a prospective multicenter observational study (East German Gastric Cancer Study - EGGCS), 1 139 consecutive patients with gastric cancer were enrolled in 80 East German surgical departments from January 1 to December 31, 2002. Out of them, 1,031 (90.5%) underwent surgical intervention. The resection rat...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章,多中心研究
doi:10.1055/s-2005-836491
更新日期:2005-04-01 00:00:00
abstract::Two questions are discussed: 1. our relation to death. Contrary to the saying "shadows of the death" and to it's modern concealment this contribution states: death gives light: it enables to be conscious of one's self and to bow to the inevitable, it shows the valuables of earthly and mortal beings, and even allows us...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章,评审
doi:
更新日期:1999-01-01 00:00:00
abstract::In an effort to demonstrate and explain the peristalsis and intact pylorus-function of an oesophagus substituted by a transformed stomach-tube and despite total vagotomy, acute tests were undertaken on 14 dogs of mixed breed in the form of electromyographic examinations on the normal stomach, the stomach after vagotom...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract::Laparoscopic colorectal surgery has become increasingly more common since first being described in a publication in 1990. Despite a multitude of studies about the learning curve in laparoscopic colon surgery, there are almost no such studies with regard to laparoscopic rectum surgery. This paper aims to describe a sur...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:10.1055/s-0030-1262684
更新日期:2011-06-01 00:00:00
abstract::Femorodistal bypass using exclusively PTFE is known to have a poor prognosis, mostly because of the development of myointimal hyperplasia (MIH). Several vein patch techniques are established but the role of hemodynamics within the anastomotic site has only been explained insufficiently and is hardly considered clinica...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:10.1055/s-2001-12419
更新日期:2001-02-01 00:00:00
abstract::Regional chemotherapy offers a means to enhance the local efficacy of an otherwise ineffective systemic chemotherapy. The regional concentration advantage of a drug is proportional to its total body clearance and inversely proportional to the blood flow through the organ. Regional infusion of adriamycin, cisplatin, me...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章,评审
doi:
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:Sacral nerve stimulation (SNS) is an effective and less invasive treatment of faecal incontinence (FI). Patient selection has evolved from strict criteria to a more liberal approach, since temporary testing reliably predicts the efficacy of permanent stimulation in FI of various aetiologies. PATIENTS AND ME...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:10.1055/s-2008-1004737
更新日期:2008-04-01 00:00:00
abstract:INTRODUCTION:Aortoesophageal fistula (AEF) following open or endovascular operations of the thoracoabdominal aorta is a rare, yet life-threatening condition. In this case, the whole thoracic aorta has to be replaced using a "clamshell approach" because of an AEF following open repair of the ascending aorta after type A...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:10.1055/a-0713-0457
更新日期:2018-10-01 00:00:00
abstract::An experimental study is reported on different injections of barium sulfate into peritoneal cavity of 10 dogs and intravasal. All experimental animals died. The experiments show that barium sulfate causes not only local reaction but the most important is it's general deleterious effect. There results macro- and microe...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:
更新日期:1976-01-01 00:00:00
abstract::Achalasia is a neuromuscular functional disturbance with dystonia and dyscinesia of the entire tubular oesophagus of unknown aetiology characterised by loss of cardial opening reflex. In the usual functional state dysphagia and moderate stenosis are observed, but occasionally an organic form with marked mega-dolicho-o...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:
更新日期:1978-01-01 00:00:00
abstract::Hybrid systems with hepatocyte cultures in bioreactors are in development for therapeutical liver assistance. Here, a culture model with a special bioreactor construction was developed: Capillary membrane systems create a three dimensional artificial framework for hepatocyte adhesion, aggregation and reorganization of...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:
更新日期:1994-01-01 00:00:00
abstract::54 patients suffering from esophageal cancer have been treated in a period from 1990 to 1994. In 29 cases curative resection was possible, corresponding to a resection rate of 54%. Average age of resected patients was 62 years. According to pTNM-classification the stages T1 and T2 amounted to 45%, T3 and T4 to 55%. Ly...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:
更新日期:1997-01-01 00:00:00
abstract::Paediatric trauma care represents treatment of a dynamic and growing system. Following evaluation of fracture stability, the individual spontaneous correction can be included. Possible pitfalls can occur with diagnosis, indication, choice of the treatment modality, surgical technique and follow-up. Treatment in a spec...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:10.1055/s-2008-1077021
更新日期:2008-12-01 00:00:00
abstract::After explaining the tertiary patterns of prehension the possibilities of restoring prehensile function in patients after high cervical spinal injury (C4-C6) by means of orthotics or operation are discussed. Absolute indication for the application of electrical orthotics in patients with complete spinal cord injuries ...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:
更新日期:1976-01-01 00:00:00
abstract::From 1968 to 1978 more than 500 patients suffering from histologically verified malignant melanoma were seen. Only in 12 cases (appr. 2%) the tumour was situated on the tip of the fingers and toes. In such cases nowadays amputation and exarticulation of the whole extremity is no longer practiced. It is sufficient only...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:
更新日期:1979-01-01 00:00:00
abstract:PURPOSE:Tailgut cysts are a rare form of retrorectal tumours. They are also referred to as cystic hamartomas and predominantly affect female patients. Malignant transformation is thought to occur in 2 - 10% of cases, but there is scant further evidence. Besides the risk of malignant transformation, the feared complicat...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:10.1055/a-0874-2584
更新日期:2019-08-01 00:00:00
abstract:OBJECTIVE:The carbohydrate balance and nutritive efficacy of a completed nutritional solution with maltose were compared to an isocaloric completed nutritional solution with glucose by means of a hypocaloric parenteral nutrition after colorectal resections. METHODS:Prospective, randomised, double blind phase II trial ...
journal_title:Zentralblatt fur Chirurgie
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1996-01-01 00:00:00
abstract::Treatment was applied to 181 patients for acute pancreatitis at the Surgical Department of Friedrichshain Local Hospital, between December 1, 1985 and October 30, 1987. Ninety-two of these patients were in Stage I according to Kümmerle-Hollender, 62 in Stage II, and 27 in Stage III. Operations were performed on 57 pat...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:
更新日期:1988-01-01 00:00:00
abstract:AIM:The paper retrospectively evaluates a set of patients with ipsilateral fractures of the proximal femur and shaft treated with PFN-long. MATERIAL:19 patients (14 males and 5 females), aged 48 in average, were treated from 1998-2003. The fractures included 2 types: combined intraarticular femoral neck and shaft frac...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:10.1055/s-2005-836368
更新日期:2005-04-01 00:00:00
abstract::Surgical therapy of incidentally postoperative diagnosed small sporadic medullary thyroid cancer (MTC) is discussed controversially. In principle completion thyroidectomy with neck dissection and regulary tumor follow-up are under discussion. A total of 277 patients with MTC were treated between 1986 and 2004. In 22 c...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:10.1055/s-2005-836891
更新日期:2005-10-01 00:00:00
abstract::Anaesthesia was applied to 1,036 patients for diagnostic or therapeutic knee-joint arthroscopy, between 1983 and 1985. Different indications for general and regional anaesthesia, setbacks of spinal anaesthesia, and advantages likely to result from combined use of peridural anaesthesia and peridural analgesia are discu...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:
更新日期:1987-01-01 00:00:00
abstract::Emergency operations due to acute colonic disease between 1. 1. 1984 and 31. 12. 1991 were retrospectively analyzed with regard to causality, surgical procedure, complications and mortality. 55 of 1105 colonic operations were emergency cases requiring immediate surgical intervention. Primary continuity preserving rese...
journal_title:Zentralblatt fur Chirurgie
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00