23 research outputs found
Automatic Generation of CNC Part Program for Cylindrical Components from DXF File
his paper describes the methodology for the automatic
extraction of the co ordinates from dxf file and generation
of CNC part program for the cylindrical components. The paper
uses the method discussed in the survey for the extraction of the
co ordinate from dxf file and recognition of some basic feature
like horizontal line, vertical line and inclined line. After collecting
the co ordinates the algorithm is developed to arrange these
coordinate to write a CNC part program. While arranging the
co ordinate, sequences of the features are also considered so that
it will be useful in creating tool motion. For writing a CNC part
program, the practical aspect like depth of cut is also considered
and sequence of features are also taken care so that proper
tool path is generated. his paper describes the methodology for
the automatic extraction of the co ordinates from dxf file and
generation of CNC part program for the cylindrical components.
The paper uses the method discussed in the survey for the
extraction of the co ordinate from dxf file and recognition of
some basic feature like horizontal line, vertical line and inclined
line. After collecting the co ordinates the algorithm is developed
to arrange these coordinate to write a CNC part program. While
arranging the co ordinate, sequences of the features are also
considered so that it will be useful in creating tool motion. For
writing a CNC part program, the practical aspect like depth of
cut is also considered and sequence of features are also taken
care so that proper tool path is generated
Plenary Session III – Medical Track: Reporting At-Risk Drivers to MassDOT Medical Advisory Board
This session will address counseling the at-risk driver, healthcare provider responsibility and liability, clinician resources to provide older drivers, and procedures for reporting. This session will also include information on recognizing the sense of loss and grief experienced by someone who must relinquish a driver’s license
Triple mesh technique in repair of recurrent lumbar incisional hernia
Lumbar hernias occur infrequently and can be congenital, primary (inferior or Petit type, and superior or Grynfeltt type), post-traumatic, or incisional. They are bounded by the 12th rib, the iliac crest, the erector spinae, and the external oblique muscle. Most postoperative incisional hernias occur in nephrectomy or aortic aneurysm repair incisions for which various surgical method in context of meshplasty are available. In this case 60 yr. male hypertensive patient presented to the outpatient clinic of institute with recurrent left side lumbar incisional hernia, patient was previously operated for left side nephrolithiasis 15 years back and onlay meshplasty 2 years back for incisional hernia. The patient was operated under high risk for recurrent incisional hernia repair by triple layered meshplasties in the same sitting. Lumbar incisional hernias are often diffuse with fascial defects that are usually hard to appreciate. Computed tomography scan is the diagnostic modality of choice with adjuvant clinical findings, which allows differentiating them from abdominal wall musculature denervation atrophy complicating flank incisions. Repairing these hernias is difficult due to the surrounding structures for which our surgical approach included a triple mesh repair consisting of underlay, inlay and onlay meshplasty thereby anticipating further such incidences of incisional hernia
A Clinical Study of Bilvadi Panchmool Ghanvati in the management of Sthaulya w.s.r. to Obesity
Today most of the non-communicable diseases have higher prevalence. Sthaulya (obesity or overweight) is one of them. This disorder has constituted a most important epidemic in the initial decades of the 21st century. Taking into consideration this fact a randomized clinical study was carried out with an aim to study the clinical efficacy of “Bilvadi Panchmool Ghanvati†in the management of Sthaulya (obesity). Amongst these, 15 patients were treated with Bilvadi Panchmool Ghanvati compound in the dose of 2 gram (4 tablets of 500 mg) 3 times a day with Madhudak before meal. The duration of treatment was 8 weeks with follow‑up for 4 weeks after the completion of treatment. Analysis of the overall effects showed that Bilvadi Panchmool Ghanvati provided marked reduction in weight, body mass index, and other signs and symptoms in patients of Sthaulya
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Innovation in care for individuals with cognitive impairment: Can reimbursement policy spread best practices?
There is now an unprecedented opportunity to improve the care of the over 5 million people who are living with Alzheimer's disease and related dementias and many more with cognitive impairment due to brain injury, systemic diseases, and other causes. The introduction of a new Medicare care planning benefit-long sought openly by advocacy organizations and clinicians and badly needed by patients and families-could greatly improve health care quality, but only if widely and fully implemented. We describe the components of this new benefit and its promise of better clinical care, as well as its potential to create a new platform for clinical and health outcomes research. We highlight external factors-and some that are internal to the benefit structure itself-that challenge the full realization of its value, and we call for broad public and professional engagement to ensure that it will not fail
Comparing Primary Tumors and Metastatic Nodes in Head and Neck Cancer Using Intravoxel Incoherent Motion Imaging: A Preliminary Experience
OBJECTIVE: To use intravoxel incoherent motion (IVIM) imaging for investigating differences between primary head and neck tumors and nodal metastases and evaluating IVIM efficacy in predicting outcome. METHODS: Sixteen patients with HN cancer underwent IVIM DWI on a 1.5T MRI scanner. The significance of parametric difference between primary tumors and metastatic nodes were tested. Probabilities of progression-free survival (PFS) and overall survival (OS) were estimated using the Kaplan-Meier method. RESULTS: In comparison to metastatic nodes, the primary tumors had significantly higher vascular volume fraction (f) (p<0.0009), and lower diffusion coefficient (D) (p<0.0002). Patients with lower standard deviation for D had prolonged PFS and OS (p<0.05). CONCLUSION: Pretreatment IVIM measures were feasible in investigating the physiological differences between the two tumor tissues. After appropriate validation, these findings might be useful in optimizing treatment planning and improving patient care
TUMOR METABOLISM AND PERFUSION IN HEAD AND NECK SQUAMOUS CELL CARCINOMA: PRETREATMENT MULTIMODALITY IMAGING WITH H-1 MAGNETIC RESONANCE SPECTROSCOPY, DYNAMIC CONTRAST-ENHANCED MRI, AND [F-18]FDG-PET
PURPOSE: To correlate proton magnetic resonance spectroscopy ((1)H-MRS), dynamic contrast-enhanced MRI (DCE-MRI) and (18)F-fluorodeoxyglucose ((18)F-FDG) positron emission tomography (PET) in nodal metastases of patients with head and neck squamous cell carcinoma (HNSCC) for assessment of tumor biology. Additionally, pretreatment multimodality imaging (MMI) was evaluated for its efficacy in predicting short-term response to treatment. METHODS AND MATERIALS: Metastatic neck nodes were imaged with (1)H-MRS, DCE-MRI and (18)F-FDG PET in 16 patients with newly diagnosed HNSCC before treatment. Short-term radiological response was evaluated at 3–4 months. The correlations between (1)H-MRS (choline concentration, Cho/W), DCE-MRI (volume transfer constant, K(trans); volume fraction of the extravascular extracellular space, v(e); and redistribution rate constant, k(ep)) and (18)F-FDG PET (standard uptake value, SUV; and total lesion glycolysis, TLG) were calculated using non-parametric Spearman rank correlation. To predict the short-term response, logistic regression analysis was performed. RESULTS: A significant positive correlation was found between Cho/W and TLG (ρ = 0.599, p = 0.031). Cho/W correlated negatively with heterogeneity measures std(v(e)) (ρ = −0.691, p = 0.004) and std(k(ep)) (ρ = −0.704, p = 0.003). SUVmax values correlated strongly with MRI tumor volume (ρ = 0.643, p = 0.007). Logistic regression indicated that std(K(trans)) and SUVmean were significant predictors of short-term response (p < 0.07). CONCLUSION: Pretreatment multi-modality imaging using (1)H-MRS, DCE-MRI and (18)F-FDG PET is feasible in HNSCC patients with nodal metastases. Additionally, combined DCE-MRI and (18)F-FDG PET parameters were predictive of short-term response to treatment