scholarly journals easySLM-STED: Stimulated emission depletion microscopy with aberration correction, extended field of view and multiple beam scanning

2018 ◽  
Vol 11 (11) ◽  
pp. e201800087 ◽  
Author(s):  
Frederik Görlitz ◽  
Stina Guldbrand ◽  
Timothy H. Runcorn ◽  
Robert T. Murray ◽  
Angel L. Jaso-Tamame ◽  
...  
Keyword(s):  
Stimulated Emission ◽  
Field Of View ◽  
Aberration Correction ◽  
Beam Scanning ◽  
Multiple Beam ◽  
Extended Field ◽  
Stimulated Emission Depletion ◽  
Extended Field Of View

scholarly journals Tiled STED Imaging of Extended Sample Regions

2019 ◽  
Author(s):  
Jonatan Alvelid ◽  
Ilaria Testa
Keyword(s):  
Image Quality ◽  
Spatial Resolution ◽  
Feedback System ◽  
Stimulated Emission ◽  
Field Of View ◽  
Scanning System ◽  
Beam Scanning ◽  
Mechanical Stage ◽  
Stimulated Emission Depletion ◽  
Larger Sample

AbstractStimulated Emission Depletion (STED) nanoscopy has become one of the most used nanoscopy techniques over the last decade. However, most recordings are done in specimen regions no larger than 10–30 × 10–30 µm2 due to aberrations, instability and manual mechanical stages. Here, we demonstrate automated STED nanoscopy of extended sample regions up to 0.5 × 0.5 mm2 by using a back-aperture-stationary beam scanning system. The setup allows up to 80–100 x 80–100 µm2 field of view (FOV) with uniform spatial resolution, a mechanical stage allowing sequential tiling to record larger sample areas, and a feedback system keeping the sample in focus at all times. Taken together, this allows automated recording of theoretically unlimited-sized sample areas and volumes, without compromising the achievable spatial resolution and image quality.

scholarly journals Evaluation of novel AI‐based extended field‐of‐view CT reconstructions

2021 ◽  
Author(s):  
Gabriel Paiva Fonseca ◽  
Matthias Baer‐Beck ◽  
Eric Fournie ◽  
Christian Hofmann ◽  
Ilaria Rinaldi ◽  
...  
Keyword(s):  
Field Of View ◽  
Extended Field ◽  
Extended Field Of View

Iterative extended field of view reconstruction

2007 ◽  
Author(s):  
Holger Kunze ◽  
Wolfgang Härer ◽  
Karl Stierstorfer
Keyword(s):  
Field Of View ◽  
Extended Field ◽  
View Reconstruction ◽  
Extended Field Of View

Does Extended-Field-of-View Sonography Improve Interrater Reliability for the Detection of Rotator Cuff Muscle Atrophy?

2008 ◽  
Vol 190 (1) ◽  
pp. 27-31 ◽  
Author(s):  
Eoin C. Kavanagh ◽  
George Koulouris ◽  
Laurence Parker ◽  
William B. Morrison ◽  
Diane Bergin ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Muscle Atrophy ◽  
Interrater Reliability ◽  
Field Of View ◽  
Rotator Cuff Muscle ◽  
Extended Field ◽  
Extended Field Of View

scholarly journals Dynamics of cell and tissue growth acquired by means of extended field of view lensfree microscopy

2016 ◽  
Vol 7 (2) ◽  
pp. 512 ◽  
Author(s):  
F. Momey ◽  
J.-G. Coutard ◽  
T. Bordy ◽  
F. Navarro ◽  
M. Menneteau ◽  
...  
Keyword(s):  
Tissue Growth ◽  
Field Of View ◽  
Extended Field ◽  
Extended Field Of View

scholarly journals Intra- and inter-muscular differences in the cross-sectional area of the quadriceps muscles assessed by extended field-of-view ultrasonography

2020 ◽  
Vol 22 (2) ◽  
pp. 152 ◽  
Author(s):  
Chrysostomos Sahinis ◽  
Eleftherios Kellis ◽  
Nikiforos Galanis ◽  
Konstantinos Dafkou ◽  
Athanasios Ellinoudis
Keyword(s):  
Vastus Lateralis ◽  
Intraclass Correlation ◽  
Cross Sectional Area ◽  
Field Of View ◽  
Cost Evaluation ◽  
Sectional Area ◽  
Cross Sectional ◽  
Vastus Intermedius ◽  
Extended Field ◽  
Extended Field Of View

Aim: Τo examine the inter- and intra-muscular differences in the anatomical cross-sectional area (CSA) of the quadricep muscles, using extended - field of view (EFOV) ultrasonography (US).Material and methods: Panoramic transverse US images of the thigh were acquired from 10 young participants at five different locations across the thigh, in two sessions, spaced a week apart. The CSA of the vastus medialis (VM), rectus femoris (RF), vastus intermedius (VI), vastus lateralis (VL) and tensor vastus intermedius (TVI) was quantified.Results: The intraclass correlation coefficients ranged from 0.75 to 0.97 and the standard error of measurement ranged from 0.78% to 6.61%, indicating high test-retest reliability. Analysis of the variance indicated that among the 5 quadriceps muscles the VL and the RF displayed the greater CSA proximally, the VI medially and the VM distally across the thigh (p <0.05). No differences in the quadriceps CSA measured with and without including the TVI were found (p >0.05).Conclusions: The EFOV US technique provides transverse scans of the quadriceps muscle in vivo and allowed a reliable and non-invasive determination of CSA at a low cost. Evaluation of CSA along the thigh largely depends on the measurement site. Future studies that examine the quadriceps CSA using EFOV after any form of intervention should consider changes of at least 6.5% as meaningful.

scholarly journals Assessment of ct simulators used in radiotherapy treatment planning in Serbia, Croatia and Bosnia and Herzegovina

2021 ◽  
pp. 9-9
Author(s):  
Borislava Petrovic ◽  
Dario Faj ◽  
Mladen Markovic ◽  
Arpad Tot ◽  
Milana Marjanovic ◽  
...  
Keyword(s):  
Treatment Planning ◽  
Bosnia And Herzegovina ◽  
Field Of View ◽  
Radiotherapy Treatment Planning ◽  
Standard Field ◽  
Extended Field ◽  
The Mean ◽  
Ct Data ◽  
Radiotherapy Treatment ◽  
Extended Field Of View

The purpose of this work was to evaluate computed tomography (CT) simulators used in radiotherapy treatment planning in Serbia, Croatia and Bosnia and Herzegovina. A survey of quality assurance programmes of 24 CT simulators in 16 facilities was conducted. Dedicated CT-to-ED phantom was scanned at 120 kV and 140 kV, to obtain CT-to-ED (ED- Electron Density) conversion curves as well as CTDIvol. Thoracal phantoms were scanned in standard and extended field of view to evaluate dosimetric effect on treatment planning and delivery. Mean age of measured scanners was 5.5 years. The mean water HU value was -6.5 (all scanners, all voltages) and air HU value was -997. Extended field of view CT data differ from standard field of view and differences between conversion curves have significant dosimetric impact. The CTDI data showed large range of values between centers. Better QA of CT simulators in all countries is recommended. CT-to-ED curve could be used as default at one voltage and per manufacturer. Extended field of view imaging can be used, but treatment planning should be avoided in the regions out of standard field of view.

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