scholarly journals The Arterial Supply of the Distal Part of the Pancreas

2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
S. Covantev ◽  
N. Mazuruc ◽  
O. Belic
Keyword(s):  
Splenic Artery ◽  
Distal Part ◽  
Type I ◽  
Type Iv ◽  
Distal Pancreas ◽  
Corrosion Cast ◽  
Type 3

The pancreatic surgery field has evolved greatly over the previous years. Nevertheless, the vascularization of the pancreas remains a difficult subject and requires further attention. The study was conducted using macroscopical dissection and corrosion cast methods. The total number of organ blocks was 72 (50 for dissection and 22 for corrosion cast). Based on the data obtained by dissection, we can distinguish three major types of vascularization of the distal pancreas. In type one, the pancreas was vascularized only by the short branches of the splenic artery and was encountered in 18 cases (36%). In type two, the pancreas was vascularized by the long and short branches of the splenic artery and was encountered in 20 cases (40%). In type three, the pancreas was vascularized only by the long branches of the splenic artery in 12 cases (24%). Compared to that, the corrosion cast method demonstrated type 1 in 8 cases (36.36%), type 2 in 10 cases (45.46%), and type 3 in 4 cases (18.18%). During the dissection, there were no arteries to the tail of the pancreas in 13 (26%) cases, one artery in 15 (30%) cases, two arteries in 19 (38%), and three arteries in three (6%) cases. The 22 corrosion cast specimens were also evaluated based on the classification of Roman Ramos and coworkers. Type I (small arcades) was in 9 (40.90%) cases, type II (small and large arcades) was in 7 (31.82%) cases, type III (large arcades) was in 5 (22.73%) cases, and type IV (straight branches) was in 1 (4.55%) case. The corrosion cast method allowed us to determine no arteries to the tail in 4 (18.18%) cases, one artery in 6 (27.27%) cases, two arteries in 10 (45.46%) cases and three arteries in two (9.09%) cases. The vascularization of the distal part of the pancreas is highly variable and should be taken into consideration during surgery.

scholarly journals Analysis of EPID Transmission Fluence Maps Using Machine Learning Models and CNN for Identifying Position Errors in the Treatment of GO Patients

2021 ◽  
Vol 11 ◽  
Author(s):  
Guyu Dai ◽  
Xiangbin Zhang ◽  
Wenjie Liu ◽  
Zhibin Li ◽  
Guangyu Wang ◽  
...  
Keyword(s):  
Machine Learning ◽  
Error Type ◽  
Imaging Device ◽  
Linear Discriminant ◽  
Position Errors ◽  
Dose Monitoring ◽  
Type 3

PurposeTo find a suitable method for analyzing electronic portal imaging device (EPID) transmission fluence maps for the identification of position errors in the in vivo dose monitoring of patients with Graves’ ophthalmopathy (GO).MethodsPosition errors combining 0-, 2-, and 4-mm errors in the left-right (LR), anterior-posterior (AP), and superior-inferior (SI) directions in the delivery of 40 GO patient radiotherapy plans to a human head phantom were simulated and EPID transmission fluence maps were acquired. Dose difference (DD) and structural similarity (SSIM) maps were calculated to quantify changes in the fluence maps. Three types of machine learning (ML) models that utilize radiomics features of the DD maps (ML 1 models), features of the SSIM maps (ML 2 models), and features of both DD and SSIM maps (ML 3 models) as inputs were used to perform three types of position error classification, namely a binary classification of the isocenter error (type 1), three binary classifications of LR, SI, and AP direction errors (type 2), and an eight-element classification of the combined LR, SI, and AP direction errors (type 3). Convolutional neural network (CNN) was also used to classify position errors using the DD and SSIM maps as input.ResultsThe best-performing ML 1 model was XGBoost, which achieved accuracies of 0.889, 0.755, 0.778, 0.833, and 0.532 in the type 1, type 2-LR, type 2-AP, type 2-SI, and type 3 classification, respectively. The best ML 2 model was XGBoost, which achieved accuracies of 0.856, 0.731, 0.736, 0.949, and 0.491, respectively. The best ML 3 model was linear discriminant classifier (LDC), which achieved accuracies of 0.903, 0.792, 0.870, 0.931, and 0.671, respectively. The CNN achieved classification accuracies of 0.925, 0.833, 0.875, 0.949, and 0.689, respectively.ConclusionML models and CNN using combined DD and SSIM maps can analyze EPID transmission fluence maps to identify position errors in the treatment of GO patients. Further studies with large sample sizes are needed to improve the accuracy of CNN.

VWF Binding to Types I, III or VI Collagen In the ZPMCB-VWD with Identification of Subjects with Selective Reduced Plasma VWF:CB

Blood ◽  
2010 ◽  
Vol 116 (21) ◽  
pp. 235-235
Author(s):  
Veronica H Flood ◽  
Sandra L Haberichter ◽  
Kenneth D Friedman ◽  
Steven R Lentz ◽  
Joan Cox Gill ◽  
...  
Keyword(s):  
Amino Acid ◽  
Type I ◽  
Healthy Controls ◽  
Type Vi Collagen ◽  
Collagen Binding ◽  
Type Iii ◽  
Type 3 ◽  
Von Willebrand

Abstract 235 Von Willebrand Disease (VWD) is a common bleeding disorder caused by quantitative (types 1 and 3) and qualitative (type 2) abnormalities in von Willebrand factor (VWF). Defective VWF binding to collagen (VWF:CB) has been identified in VWD patients, but the type(s) and amount of collagen vary between recommended assays. We measured VWF:CB using separate assays for types I, III, and VI collagen in plasmas from 233 healthy controls and 315 VWD index cases (261 type 1, 37 type 2 and 17 type 3) recruited into the Zimmerman Program for the Molecular and Clinical Biology of VWD (ZPMCB-VWD). Additional studies included VWF antigen (Ag), VWF ristocetin-cofactor (RCo), VWF multimer, and VWF gene sequence analysis. VWF:CB was tested using ELISA assays with type I human placental collagen (5 ug/ml), type III human placental collagen (1 ug/ml), and by a commercial human placental type VI VWF:CB assay (Technoclone, Austria). Normal ranges were established for VWF:CB and VWF:CB/Ag ratios with the ZPMCB-VWD healthy control population. Three subjects (2 healthy controls and 1 type 1 VWD subject) were identified with reduced VWF:CB and reduced VWF:CB/Ag ratios to type VI collagen, despite normal results with type I and type III collagen. The two control subjects had VWF:CB/Ag ratios of 0.43 and 0.51 for type VI collagen. The patient with type 1 VWD had absent type VI VWF:CB and a VWF:Ag of 54 IU/dL with a history of clinical epistaxis and an EU Bleeding Score of 8 (normal less than or equal to 3). VWF sequencing demonstrated that these three individuals had an A1 loop polymorphism, R1399H, which has been previously reported as a VWF polymorphism. No other individuals in our study had this sequence change. Of particular note was that the VWF:CB/Ag ratios for types I and III collagen were each normal – suggesting a selective abnormality. As anticipated, collagen binding with all collagens was undetectable in the type 3 VWD subjects. Type 2A and 2B VWD subjects demonstrated reduced VWF:CB and VWF:CB/Ag ratios to all three types of collagen. Type 2M and 2N VWD subjects exhibited normal VWF:CB/Ag ratios to all three types of collagen, but one type 2M patient with an I1425F A1 loop mutation had a reduced VWF:CB/Ag ratio of 0.58. In the VWF A1 domain crystal structure, amino acid 1425 is in close proximity to amino acid 1399, suggesting the conformation of that region may be critical to type VI collagen binding to VWF. Since the frequency of the R1399H polymorphism is estimated to be 2% of the population (Sadler and Ginsburg, 1993), defective binding to type VI collagen may be an important contributor to the variability in the bleeding phenotype of VWD. Disclosures: Lentz: Novo Nordisk: Consultancy. Montgomery:GTI Diagnostics, Inc: Consultancy.

scholarly journals CLASSIFICATION OF MAGNETOSPHERIC RESPONSES TO INTERACTION WITH DIAMAGNETIC STRUCTURES OF SLOW SOLAR WIND

2020 ◽  
Vol 6 (4) ◽  
pp. 24-36
Author(s):  
Vladimir Parkhomov ◽  
Viktor Eselevich ◽  
Maxim Eselevich ◽  
Aleksey Dmitriev ◽  
Alla Suvorova ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Solar Wind ◽  
Vertical Component ◽  
Slow Solar Wind ◽  
Solar Wind Density ◽  
Main Determinants ◽  
Type 3

We propose a possible classification of the responses of the magnetosphere to the interaction with diamagnetic structures (DS), which form the basis of the slow solar wind. The main determinants of the classification are the value and orientation of the vertical component Bz of the interplanetary magnetic field (IMF) and the solar wind density N. We have identified three types of magnetospheric responses. Type 1 has two subtypes whose main difference is the presence or absence of auroras on the day side of the magnetosphere. Within an hour before DS arrival, Bz has a positive value (up to 12 nT) or fluctuates about 0 in the range from –1 to +1 nT. For both subtypes, the duration of substorm disturbances approximately coincides with the duration of DS, and their intensity does not exceed AE~500 nT. Type 2 is characterized by the fact that before the contact with DS positive IMF Bz (0–10 nT) is recorded for an hour, and at the interface of DS a rapid (≤2 min) change in the orientation of the IMF vertical component from north to south occurs. For type 3, Bz within an hour before the contact with DS is negative (from –10 to 0 nT). We address the problem of DS energy transfer to the magnetosphere.

scholarly journals Four Bible Translation Types and Some Criteria to Distinguish Them

2007 ◽  
Vol 3 (2) ◽  
pp. 1-22
Author(s):  
Sebastian Floor
Keyword(s):  
Information Structure ◽  
Semantic Content ◽  
Sentence Length ◽  
Bible Translation ◽  
Dynamic Equivalent ◽  
Type 3 ◽  
Key Terms

The purpose of this paper is to contribute to the discussion on the classification of Bible translation types. This paper proposes four types instead of the traditional two: literal and idiomatic or dynamic equivalent. The four types are Type 1) close (or literal) resemblance, Type 2) open resemblance, Type 3) close (or limited) interpretative, and Type 4) open interpretative. There are several continua of criteria: the degree of resemblance to the original semantic content, the degree of explicitness, and the type of adjustments needed to unpack the meaning. Eight criteria of adjustments are proposed to distinguish these four types: 1) order of clauses and phrases, 2) sentence length, 3) reference disambiguation and tracking, 4) concordance of lexical items, 5) key terms and unknown terms, 6) figurative usage and idioms, 7) transition marking, and 8) information structure.

Analisis Kapasitas Galangan Kapal Ikan Untuk Memenuhi Rencana Pengadaan Kapal Ikan Hibah

2019 ◽  
Vol 13 (1) ◽  
pp. 25-36
Author(s):  
Agus Lubis Fitriansyah ◽  
Heri Supomo
Keyword(s):  
Fishing Vessel ◽  
Fishing Vessels ◽  
Score Method ◽  
The Government ◽  
The Right ◽  
Type 3 ◽  
Selection Of

The government through the Ministry of Marine and Fisheries offers assistance of fishing vessel to achieve fisheries production targets. This procurement plan must be supported by the ability and selection of the right shipyard. Beacuse the information of the capability and capacity of fiber shipyards in Indonesia is unclear, so the realization of the procurement of fishing vessel in previous years did not met the planned targets. The purpose of this study was to analyze shipyard capacity to meet the planned procurement of KKP fishing vessels grant in 2019. First classification of fishing vessels is based on the size of each GT, which is 5 GT (type 1), 5-10 GT (type 2), and 20-30 GT (type 3). The second is the minimum shipyard criteria for building fishing boats. Third, an assessment of the shipyard is based on the criteria that have been made. Fourth, shipyard selection was carried out on each WPPN-RI using the load score method. The fifth calculates the number of ships that can be built by the shipyard. The results of the shipyard assessment found that 43% of shipyards have the ability to build type 1 vessels, around 38% of shipyards have the ability to build type 2 vessels, and around 19% of shipyards have the ability to build type 3 vessels. is 1625 units / period. Referring to shipyard capacity, it can be said that the entire shipyard is able to fulfill the plan to procure assistance for KKP fishing vessels in the 2019 budget year.

New variant of persistent primitive olfactory artery associated with a ruptured aneurysm

2012 ◽  
Vol 117 (1) ◽  
pp. 26-28 ◽  
Author(s):  
Nobutaka Horie ◽  
Minoru Morikawa ◽  
Shuji Fukuda ◽  
Kentaro Hayashi ◽  
Kazuhiko Suyama ◽  
...  
Keyword(s):  
Subarachnoid Hemorrhage ◽  
Cerebral Artery ◽  
Distal Part ◽  
Anterior Cerebral Artery ◽  
Ruptured Aneurysm ◽  
Clinical Implications ◽  
New Variant ◽  
Type 3

The authors present the case of a 78-year-old man who presented with a subarachnoid hemorrhage due to rupture of an aneurysm at the origin of the persistent primitive olfactory artery (PPOA). Interestingly, the PPOA was originating from the A1 segment of the anterior cerebral artery and coursed anteromedially along the olfactory tract. Moreover, the PPOA in this case had 2 branches: the branch making a hairpin turn and supplying the distal part of the anterior cerebral artery territory (Type 1), and the branch extending to the cribriform plate to supply the nasal cavity (Type 2). To the best of the authors' knowledge, this is a new variant (Type 3) of PPOA associated with a ruptured aneurysm. The clinical implications of this case are discussed in terms of the embryological aspects.

scholarly journals CLASSIFICATION OF MAGNETOSPHERIC RESPONSES TO INTERACTION WITH DIAMAGNETIC STRUCTURES OF SLOW SOLAR WIND

2020 ◽  
Vol 6 (4) ◽  
pp. 26-41
Author(s):  
Vladimir Parkhomov ◽  
Viktor Eselevich ◽  
Maxim Eselevich ◽  
Aleksey Dmitriev ◽  
Alla Suvorova ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Solar Wind ◽  
Vertical Component ◽  
Slow Solar Wind ◽  
Solar Wind Density ◽  
Main Determinants ◽  
Type 3

We propose a possible classification of the responses of the magnetosphere to the interaction with diamagnetic structures (DS), which form the basis of the slow solar wind. The main determinants of the classification are the value and orientation of the vertical component Bz of the interplanetary magnetic field (IMF) and the solar wind density N. We have identified three types of magnetospheric responses. Type 1 has two subtypes whose main difference is the presence or absence of auroras on the day side of the magnetosphere. Within an hour before DS arrival, Bz has a positive value (up to 12 nT) or fluctuates about 0 in the range from –1 to +1 nT. For both subtypes, the duration of substorm disturbances approximately coincides with the duration of DS, and their intensity does not exceed AE~500 nT. Type 2 is characterized by the fact that before the contact with DS positive IMF Bz (0–10 nT) is recorded for an hour, and at the interface of DS a rapid (≤2 min) change in the orientation of the IMF vertical component from north to south occurs. For type 3, Bz within an hour before the contact with DS is negative (from –10 to 0 nT). We address the problem of DS energy transfer to the magnetosphere.

scholarly journals Salvodara Persica As An Oral Aids For Edentulous Patients

2017 ◽  
Vol 16 (2) ◽  
Author(s):  
Nusima Mohamed ◽  
Norlela Yacob ◽  
Wan Nor Syariza Wan Ali ◽  
Aida Ali
Keyword(s):  
Type I ◽  
New Approach ◽  
Denture Stomatitis ◽  
Edentulous Patients ◽  
Type 3 ◽  
Dentate Patient ◽  
Control Study

Introduction: Salvadora percisa (popularly known as miswak) has been widely used as an aid for oral hygiene in dentate patient. There is no side effect of using miswak stick. A new approach introduced the role of miswak stick in edentulous patient. It may prevent the incidence of denture stomatitis among denture wearer. This study assessed the effectiveness of the miswak stick as an oral aid in edentulous patients as an alternative treatment for denture stomatitis. Materials and Methods: A clinical case control study included patients affected by denture stomatitis. The Miswak stick was introduced to the subjects to use as the oral device to clean the denture and oral mucosal area everyday. Pre- and postoperative assessment (clinical and photographic) were evaluated within 8 to 12 weeks and analysed by comparing the mapping of denture stomatitis inflammation. Results:  A total of 11 subjects with denture stomatitis comprised as type 1; n=5 (46%), type 2; n=4 (36%) and type 3; n=2 (18%). 54.5% of subjects showed more than 50% reduction in the mapping of denture stomatitis inflammation (p<0.05) after the use of miswak stick. This study also showed that the use of miswak stick for more than 3 weeks to Type I and II denture stomatitis (54.6%) has successfully reduce the inflammation for more than 50%. 54.5% of the subjects with good denture hygiene has 50% more reduction of denture stomatitis. Conclusion(s):  The miswak stick was significantly effective to reduce the denture stomatitis with a regular use and maintenance of good denture hygiene.

scholarly journals Cholangiographic Features in the Diagnosis and Management of Obstructive Icteric Type Hepatocellular Carcinoma

HPB Surgery ◽  
2000 ◽  
Vol 11 (5) ◽  
pp. 299-306 ◽  
Author(s):  
W. Y. Lau ◽  
C. K. Leow ◽  
K. L. Leung ◽  
Thomas W. T. Leung ◽  
Michael Chan ◽  
...  
Keyword(s):  
Management Strategy ◽  
Biliary Tree ◽  
Endoscopic Retrograde ◽  
Extrinsic Compression ◽  
Blood Clots ◽  
Malignant Lymph Nodes ◽  
Type 3

In 11 years and 3 months, 2037 patients with HCC were seen and 48 patients (2.4%) were diagnosed to have obstructive icteric type HCC. Five patients were terminally ill and were not investigated further. Forty three patients were initially investigated by endoscopic retrograde cholangiography (ERC) or percutaneous transhepatic cholangiogram (PTC) and classified as having obstructive icteric type 1, 2, or 3 HCC based on the cholangiographic findings. The obstruction in type 1 HCC was due to intraluminal tumour casts and/or tumour fragments obstructing the hepatic ductal confluence or common bile duct, while intraluminal blood clots, from haemobilia, filling the biliary tree was the cause in type 2 HCC. The pathology in type 3 HCC was extraluminal obstruction by extensive tumour encasement of the intra–hepatic biliary ductal system and/or extrinsic compression of the hepatic and common bile ducts by tumour(s) and/or malignant lymph nodes. At the initial ERC/PTC, 10 patients (5 resected, 50%) had obstructive icteric type 1 and 23 patients (0 resected) had obstructive icteric type 3 HCC. Of the 10 patients initially classified according to cholangiography to have obstructive icteric type 2 HCC, subsequent investigations revealed that 6 patients had type 1 HCC (4 resectable, 67%) and 4 patients had type 3 HCC (0 resectable). The classification of the obstructive icteric type HCC into types 1, 2, and 3, based on the initial cholangiographic appearances has simplified and rationalized our management strategy for this condition.

Dorsal scapholunate ligament injury: a classification of clinical forms

2012 ◽  
Vol 38 (2) ◽  
pp. 165-169 ◽  
Author(s):  
J. K. Andersson ◽  
M. Garcia-Elias
Keyword(s):  
Ligament Injury ◽  
Scapholunate Ligament Injury ◽  
Arthroscopically Assisted ◽  
Ligament Failure ◽  
Bone Anchors ◽  
Type 3 ◽  
Specific Fixation

The dorsal scapholunate (SL) ligament may disrupt in variety of ways. Each form of injury requires specific fixation. To investigate the incidence of each type of ligament failure, the records of 45 patients with adequate information, good quality pictures, or videos demonstrating injury characteristics were reviewed. Four types of SL injury were found: type 1 (lateral avulsion from the scaphoid) was the most frequent, present in 19 patients (42%); type 2 (medial avulsion from the lunate) was the least frequent, with 7 cases (16%); type 3 (mid-substance rupture) was found on 9 occasions (20%); and type 4 (partial rupture plus elongation) was observed on 10 occasions (22%). Based on our observations, we submit that an arthroscopically assisted SL capsuloplasty may not be possible in all cases, particularly not when the ligament has avulsed off the bone (60% of the cases), leaving no ligament remnant on one side. Most patients will require ligament reattachment techniques using transosseous sutures, bone anchors, or ligament reconstruction.

Sign in / Sign up

Export Citation Format

Share Document