Technical Note: An alternative approach to verify 6FFF beam dosimetry for Ethos and MR Linac without using a 3D water tank

2021 ◽  
Author(s):  
Yao Hao ◽  
Bin Cai ◽  
Olga Green ◽  
Nels Knutson ◽  
Sridhar Yaddanapudi ◽  
...  
Keyword(s):  
Technical Note ◽  
Water Tank ◽  
Alternative Approach ◽  
Beam Dosimetry

Concurrent Placement of Bilateral Suboccipital and Supraorbital Nerve Stimulators Using On-Q* Tunneler: Technical Note

2018 ◽  
Vol 15 (6) ◽  
pp. 720-724 ◽  
Author(s):  
Lara Massie ◽  
Rushna Ali ◽  
Konstantin V Slavin ◽  
Jason M Schwalb
Keyword(s):  
Technical Note ◽  
Full Time ◽  
Unilateral Approach ◽  
Infectious Risk ◽  
First Case ◽  
Alternative Approach ◽  
Patient Reported ◽  
Cosmetic Effect ◽  
Purulent Drainage ◽  
Stimulation Of

Abstract BACKGROUND Stimulation of the occipital and supraorbital nerves is used to treat chronic migraine refractory to medical management. Placement of cranial leads is often challenging due to the rigid Touhy needle included in the kit for its placement. OBJECTIVE To report the first case of concurrent placement of bilateral supraorbital (SNS) and occipital nerve stimulators (ONS) from a unilateral approach using the On-Q* Tunneler, (Halyard Health, Alpharetta, Georgia) a flexible, blunt tipped plastic tunneler with a tear-away sheath. METHODS We present the case of a 49-yr-old female with debilitating daily holocephalic headaches who underwent placement of SNS and ONS through a cervical and left temporal incision at an outside hospital. She presented to our institution with purulent drainage from the temporal incision and the system was removed. We describe an alternative approach to bilateral SNS and ONS placement with a soft flexible tunneling device, which facilitated placement of the entire system through a right temporal incision, thereby avoiding her previously infected surgical sites. RESULTS The patient reported complete resolution of her daily headaches and was able to resume her activities as a full-time student. CONCLUSION The flexibility of the On-Q tunneler device (Halyard Health) allows the placement of bilateral SNS and ONS from a unilateral incision, thereby minimizing the cosmetic effect and infectious risk of this procedure.

Technical Note: Characteristics of a microSilicon X shielded diode detector for photon beam dosimetry

2020 ◽  
Author(s):  
Yuichi Akino ◽  
Keita Okamura ◽  
Indra J. Das ◽  
Fumiaki Isohashi ◽  
Yuji Seo ◽  
...  
Keyword(s):  
Technical Note ◽  
Photon Beam ◽  
Diode Detector ◽  
Beam Dosimetry

Nano Engineering of Artificial Granulocytes for Cancer Diagnosis and Therapeutics

Nano LIFE ◽  
2018 ◽  
Vol 08 (03) ◽  
pp. 1871001
Author(s):  
Donglu Shi
Keyword(s):  
Cancer Cells ◽  
Cancer Diagnosis ◽  
Immune Cells ◽  
Drug Loading ◽  
Technical Note ◽  
Clinical Settings ◽  
Cell Surfaces ◽  
Alternative Approach ◽  
Critical Issues ◽  
Positively Charged

The study of nanomedicine research, to date, has been concentrating on developing nanovectors for medical imaging, drug/gene delivery, and cell targeting, particularly in cancer diagnosis and therapeutics. Although quite successful in some areas, critical challenges remain, especially in the clinical settings. Some of the critical issues include delivery inefficiency, targeting non-specificity, and low uptake of theranostic-payloads by the cancerous lesions upon intravenous injection. Therefore, an alternative approach may be possible, via nanotechnology, by simulating some of the immune cells. In this Technical Note, we propose using specifically designed nanoparticles to simulate neutrophils that are capable of effective cancer cells targeting and killing without the complications in drug loading, biomarker conjugation, and assembly of chemical and physical therapeutic means. The simulated artificial cells mimic neutrophils, namely, granulocytes, according to their biological characteristics, for instance, positively-charged cell surfaces and the ability to release perferin upon binding onto the cancer cells leading to cytolysis. This Technical Note is intended to deliver a new concept in artificially-engineered granulocytes for cancer diagnosis and therapeutics.

scholarly journals Calibration of a photoacoustic spectrometer cell using light absorbing aerosols. A technical note

2016 ◽  
Author(s):  
Nir Bluvshtein ◽  
J. Michel Flores ◽  
Quanfu He ◽  
Enrico Segre ◽  
Lior Segev ◽  
...  
Keyword(s):  
Complex Refractive Index ◽  
Calibration Method ◽  
Technical Note ◽  
Independent Method ◽  
Organic Dye ◽  
Standard Material ◽  
Alternative Approach ◽  
Photoacoustic Spectrometer ◽  
Measured Absorption ◽  
Absorbing Aerosols

Abstract. Multi-pass photoacoustic spectrometer (PAS) is an important tool for the direct measurement of light absorption by atmospheric aerosol. And accurate PAS measurements require an accurate calibration of its signal. Ozone is often used for calibrating the PAS by relating the instrument signal to the absorption coefficient measured by an independent method such as cavity ring down spectroscopy (CRD), cavity enhanced spectroscopy (CES) or an ozone monitor. We report here a calibration method that uses measured absorption coefficients of aerosolized, light absorbing organic materials and offer an alternative approach to calibrate the PAS at 404 nm. To implement this method we first determined the complex refractive index of an organic dye using spectroscopic ellipsometry, and then we use this well characterized material as a standard material for PAS calibration.

An alternative approach to lateral load analysis of framed type elevated water tank stagings

2019 ◽  
Vol 21 (2) ◽  
pp. 173-188
Author(s):  
Ramesh Velivela ◽  
Ravindra Vipparthy ◽  
Panduranga Rao Bavineni
Keyword(s):  
Lateral Load ◽  
Water Tank ◽  
Alternative Approach ◽  
Load Analysis ◽  
Elevated Water

Technical Note: Single Pulse Beam Characterization for FLASH‐RT Using Optical Imaging in a Water Tank

2021 ◽  
Author(s):  
M. Ramish Ashraf ◽  
Mahbubur Rahman ◽  
Rongxiao Zhang ◽  
Xu Cao ◽  
Benjamin B. Williams ◽  
...  
Keyword(s):  
Optical Imaging ◽  
Single Pulse ◽  
Technical Note ◽  
Water Tank ◽  
Pulse Beam ◽  
Beam Characterization

New AAC Access Strategy for Gesture Tracking: A Technical Note

2012 ◽  
Vol 21 (1) ◽  
pp. 11-16 ◽  
Author(s):  
Susan Fager ◽  
Tom Jakobs ◽  
David Beukelman ◽  
Tricia Ternus ◽  
Haylee Schley
Keyword(s):  
Augmentative And Alternative Communication ◽  
Technical Note ◽  
Head Tracking ◽  
Alternative Communication ◽  
Access Methods ◽  
Cord Injury ◽  
Physical Limitations ◽  
Gesture Tracking ◽  
Communication Needs ◽  
Tracking Device

Abstract This article summarizes the design and evaluation of a new augmentative and alternative communication (AAC) interface strategy for people with complex communication needs and severe physical limitations. This strategy combines typing, gesture recognition, and word prediction to input text into AAC software using touchscreen or head movement tracking access methods. Eight individuals with movement limitations due to spinal cord injury, amyotrophic lateral sclerosis, polio, and Guillain Barre syndrome participated in the evaluation of the prototype technology using a head-tracking device. Fourteen typical individuals participated in the evaluation of the prototype using a touchscreen.

Technical Note

1998 ◽  
Vol 47 (3) ◽  
pp. 153-160
Author(s):  
Wang ◽  
Park ◽  
Kang ◽  
Oh
Keyword(s):  
Technical Note

V940: Pre-Pubic SPARC for Stress Urinary Incontinence: An Alternative Approach for Scarred Retzius Space

2004 ◽  
Vol 171 (4S) ◽  
pp. 249-249
Author(s):  
Paulo Palma ◽  
Cassio Riccetto ◽  
Marcelo Thiel ◽  
Miriam Dambros ◽  
Rogerio Fraga ◽  
...  
Keyword(s):  
Urinary Incontinence ◽  
Stress Urinary Incontinence ◽  
Alternative Approach
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