Zobrazeno 1 - 10
of 16 466
pro vyhledávání: '"Transit time"'
Publikováno v:
Nuclear Engineering and Technology, Vol 56, Iss 9, Pp 3933-3941 (2024)
The paper concerns a room-temperature cross-bar H-mode (CH) drift tube linac (DTL) with KONUS (Kombinierte Null Grad Struktur) [1,2] beam dynamics. To make the acceleration in DTL cell more efficient, we studied the correlation between transit time f
Externí odkaz:
https://doaj.org/article/ab57f484570745e58c7d6a41d9e039fe
Cerebral perfusion metrics calculated directly from a hypoxia-induced step change in deoxyhemoglobin
Autor:
James Duffin, Ece Su Sayin, Olivia Sobczyk, Julien Poublanc, David J. Mikulis, Joseph A. Fisher
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract Resting cerebral perfusion metrics can be calculated from the MRI ΔR2* signal during the first passage of an intravascular bolus of a Gadolinium-based contrast agent (GBCA), or more recently, a transient hypoxia-induced change in the concen
Externí odkaz:
https://doaj.org/article/12568e23cccb48909bbdc57866bedd4b
Akademický článek
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Autor:
Jonathan Farley, Louise AE. Brown, Pankaj Garg, Ali Wahab, Joel RL. Klassen, Nicholas Jex, Sharmaine Thirunavukarasu, Amrit Chowdhary, Noor Sharrack, Miroslawa Gorecka, Hui Xue, Nigel Artis, Eylem Levelt, Erica Dall’Armellina, Peter Kellman, John P. Greenwood, Sven Plein, Peter P. Swoboda
Publikováno v:
BMC Cardiovascular Disorders, Vol 24, Iss 1, Pp 1-8 (2024)
Abstract Background Pulmonary transit time (PTT) can be measured automatically from arterial input function (AIF) images of dual sequence first-pass perfusion imaging. PTT has been validated against invasive cardiac catheterisation correlating with b
Externí odkaz:
https://doaj.org/article/8bb33475c4f04c59b46c925ed22489c1
Publikováno v:
陆军军医大学学报, Vol 46, Iss 11, Pp 1265-1269 (2024)
Objective To study the effect of squatting toilet behavior on gastric transport time (GTT) and complete examination rate of small bowel (CER) during capsule endoscopy. Methods A total of 122 patients who underwent capsule endoscopy at the Second Affi
Externí odkaz:
https://doaj.org/article/bfe964066c3341aea62bd8f2c0fd54c0
Predictive Value of CT Perfusion Parameters in Traumatic Brain Injury Patients: A Longitudinal Study
Autor:
Md Khalaf Saba, Mohammad Tabish Khan, Mehtab Ahmad, Raman Mohan Sharma, Ibne Ahmad, Sabahat Tazeen, Mohd Musheer Altaf, Seemin Azmat
Publikováno v:
International Journal of Anatomy Radiology and Surgery, Vol 13, Iss 03, Pp 18-21 (2024)
Introduction: Traumatic Brain Injury (TBI) is the most common cause of mortality and morbidity worldwide. Moreover, cerebral contusions, Subdural Haemorrhages (SDH), Extradural Haemorrhages (EDH), and Subarachnoid Haemorrhage (SAH), which are seconda
Externí odkaz:
https://doaj.org/article/1133d0118fdc4e3fb66a795f7ac73488
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-7 (2024)
Abstract Arterial pulse wave velocity (PWV) is recognized as a convenient method to assess peripheral vascular stiffness. This study explored the clinical characteristics of hand PWV (hPWV) and hand pulse transit time (hPTT) in healthy adults (sixty
Externí odkaz:
https://doaj.org/article/e2e6162477cb4e9fa064442dc4eddc80
Publikováno v:
Gastroenterology & Endoscopy, Vol 2, Iss 2, Pp 70-73 (2024)
Background: Measurement of colonic transit time (CTT) of different colon segments can help to find the subtype of constipation and the appropriate treatment. This study aimed to estimate the segmental and total CTT in patients with refractory chronic
Externí odkaz:
https://doaj.org/article/1b48d5b6d4ab487ba45185a0f7c5703a