نتایج جستجو برای: four dimensional computed tomography

تعداد نتایج: 1227323  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Shyamal D Peddada Shannon K Laughlin Kelly Miner Jean-Philippe Guyon Karen Haneke Heather L Vahdat Richard C Semelka Ania Kowalik Diane Armao Barbara Davis Donna Day Baird

Uterine leiomyomata (fibroids) are the leading cause of hysterectomy in the United States. Black women have a greater fibroid burden than whites, yet no study has systematically evaluated the growth of fibroids in blacks and whites. We prospectively tracked growth for 262 fibroids (size range: 1-13 cm in diameter) from 72 premenopausal participants (38 blacks and 34 whites). Fibroid volume was ...

Journal: :AJR. American journal of roentgenology 2006
Robin C Houck Jason E Cooke Edward A Gill

OBJECTIVE We describe the development of real-time 3D imaging and review the previously used versions of 3D echocardiography so that the reader will appreciate why current developments truly do represent a quantum leap in the technology. CONCLUSION Three-dimensional echocardiography has now been shown to have several advantages over 2D echocardiography, particularly for volume measurements, v...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Mert R Sabuncu Tian Ge Avram J Holmes Jordan W Smoller Randy L Buckner Bruce Fischl

Complex physiological and behavioral traits, including neurological and psychiatric disorders, often associate with distributed anatomical variation. This paper introduces a global metric, called morphometricity, as a measure of the anatomical signature of different traits. Morphometricity is defined as the proportion of phenotypic variation that can be explained by macroscopic brain morphology...

2014
Monika Bekiesińska-Figatowska

Having read the paper by Oikarinen et al. in the penultimate issue of Insights into Imaging, the author discusses the absurdities of everyday work of the radiologist in the MRI unit, concluding that delayed terms of appointments, despite numerous facilities being available in Poland, are largely due to the unwarranted referrals of patients to MRI examinations, which makes the patients who truly...

2015
Ahmed M. S. Ibrahim Rod R. Jose Amr N. Rabie Theodore L. Gerstle Bernard T. Lee Samuel J. Lin

The advent of 3-dimensional (3D) printing technology has facilitated the creation of customized objects. The lack of regulation in developing countries renders conventional means of addressing various healthcare issues challenging. 3D printing may provide a venue for addressing many of these concerns in an inexpensive and easily accessible fashion. These may potentially include the production o...

2018
Ewa Bejer-Oleńska Michael Thoene Andrzej Włodarczyk Joanna Wojtkiewicz

Aim The aim of the study was to determine the most commonly diagnosed neoplasms in the MRI scanned patient population and indicate correlations based on the descriptive variables. Methods The SPSS software was used to determine the incidence of neoplasms within the specific diagnoses based on the descriptive variables of the studied population. Over a five year period, 791 patients and 839 MR...

1994
I. Jack D. R. T. Jones K. L. Roberts

For some years there has been uncertainty over whether regularisation by dimensional reduction (DRED) is viable for non-supersymmetric theories. We resolve this issue by showing that DRED is entirely equivalent to standard dimensional regularisation (DREG), to all orders in perturbation theory and for a general renormalisable theory. The two regularisation schemes are related by an analytic red...

Journal: :Computerized tomography 1978
L R Kuhns R Seigel G S Borlaza

Sixteen on 1 multiformat images of CT scans can be mounted directly into special "super slide" 2 by 2 in. mounts. Use of special photographic equipment is thus avoided.

2001
Dietmar Saupe Jens-Peer Kuska

In many applications surfaces containing a large number of primitives occur. Geometry compression reduces storage space and transmission time for such models. A special case is given by polygonal isosurfaces generated from gridded volume data. However, most current state-of-the-art geometry compression systems do not capitalize on the structure that is characteristic of such isosurfaces, namely...

Journal: :NeuroImage 1996
D J Madden T G Turkington R E Coleman J M Provenzale T R DeGrado J M Hoffman

We used H215O PET to investigate adult age differences in regional cerebral blood flow (rCBF) during the performance of a visual word identification task. The study participants were 20 healthy, right-handed men: 10 young adults between 18 and 27 years of age, and 10 older adults between 63 and 75 years of age. The word identification task comprised six blocks of test trials representing four t...

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  • " +i+ "
  • "; pgn_html+=pgn_li; } document.getElementById("pgn-ul").innerHTML=pgn_html var pgn_links = document.querySelectorAll('.mypgn'); pgn_links.forEach(function(pgn_link) { pgn_link.addEventListener('click', paginate) }) } function post_and_fetch(data,url) { showLoading() xhr = new XMLHttpRequest(); xhr.open('POST', url, true); xhr.setRequestHeader('Content-Type', 'application/json; charset=UTF-8'); xhr.onreadystatechange = function() { if (xhr.readyState === 4 && xhr.status === 200) { var resp = xhr.responseText; resp_json=JSON.parse(resp) resp_place = document.getElementById("search_result_div") resp_place.innerHTML = resp_json['results'] search_meta = resp_json['meta'] update_search_meta(search_meta) update_pagination() hideLoading() } }; xhr.send(JSON.stringify(data)); } function unfilter() { url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term var data={ "year":"unfilter", "term":term, "pgn":1 } filtered_res=post_and_fetch(data,url) } function deactivate_all_bars(){ var yrchart = document.querySelectorAll('.ct-bar'); yrchart.forEach(function(bar) { bar.dataset.active = false bar.style = "stroke:#71a3c5;" }) } year_chart.on("created", function() { var yrchart = document.querySelectorAll('.ct-bar'); yrchart.forEach(function(check) { check.addEventListener('click', checkIndex); }) }); function checkIndex(event) { var yrchart = document.querySelectorAll('.ct-bar'); var year_bar = event.target if (year_bar.dataset.active == "true") { unfilter_res = unfilter() year_bar.dataset.active = false year_bar.style = "stroke:#1d2b3699;" } else { deactivate_all_bars() year_bar.dataset.active = true year_bar.style = "stroke:#e56f6f;" filter_year = chart_data['labels'][Array.from(yrchart).indexOf(year_bar)] url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term var data={ "year":filter_year, "term":term, "pgn":1 } filtered_res=post_and_fetch(data,url) } } function showLoading() { document.getElementById("loading").style.display = "block"; setTimeout(hideLoading, 10000); // 10 seconds } function hideLoading() { document.getElementById("loading").style.display = "none"; } -->