Results 11 to 20 of about 66,904 (300)

The feasibility of patient size‐corrected, scanner‐independent organ dose estimates for abdominal CT exams [PDF]

Medical Physics, 2011
Purpose:A recent work has demonstrated the feasibility of estimating the dose to individual organs from multidetector CT exams using patient‐specific, scanner‐independent‐to‐organ‐dose conversion coefficients. However, the previous study only investigated organ dose to a single patient model from a full‐body helical CT scan.
Adam C, Turner, Di, Zhang, Maryam, Khatonabadi, Maria, Zankl, John J, DeMarco, Chris H, Cagnon, Dianna D, Cody, Donna M, Stevens, Cynthia H, McCollough, Michael F, McNitt-Gray   +9 more
openaire   +4 more sources

Diagnostic abdominal MR imaging on a prototype low-field 0.55 T scanner operating at two different gradient strengths

Abdominal Radiology, 2021
To develop a protocol for abdominal imaging on a prototype 0.55 T scanner and to benchmark the image quality against conventional 1.5 T exam.In this prospective IRB-approved HIPAA-compliant study, 10 healthy volunteers were recruited and imaged. A commercial MRI system was modified to operate at 0.55 T (LF) with two different gradient performance ...
Hersh Chandarana, Barun Bagga, Chenchan Huang, Bari Dane, Robert Petrocelli, Mary Bruno, Mahesh Keerthivasan, David Grodzki, Kai Tobias Block, David Stoffel, Daniel K. Sodickson   +10 more
openaire   +5 more sources

Computed tomography of abdominal paraaortic lymph node disease: preliminary observations with a 6 second scanner [PDF]

American Journal of Roentgenology, 1977
Eleven patients suspected of having tumor involving para-aortic lymph nodes were studied with the Varian 6 second whole body CT scanner. All patients had a pedal lymphangiogram; six were abnormal. In three of these six, CT provided clinically important information on the extent of disease which was not detectable by other radiographic studies.
W H, Marshall, R S, Breiman, G S, Harell, E, Glatstein, H S, Kaplan   +4 more
openaire   +3 more sources

Evaluation of Small-Bowel Patency in Crohn’s Disease: Prospective Study with a Patency Capsule and Computed Tomography

GE: Portuguese Journal of Gastroenterology, 2019
Background and Purpose: Patency capsule (PC) examination is usually performed – previously to capsule endoscopy – to evaluate small-bowel patency in patients with established Crohn’s disease (CD).
Marco Silva, Hélder Cardoso, Rui Cunha, Armando Peixoto, Rui Gaspar, Sara Gomes, Ana Luísa Santos, Susana Lopes, Guilherme Macedo   +8 more
doaj   +1 more source

Contrast enhancement in abdominal computed tomography: influence of photon energy of different scanners [PDF]

The British Journal of Radiology, 2017
Objective: Different CT scanners have different X-ray spectra and photon energies indicating that contrast enhancement vary among scanners. However, this issue has not been fully validated; therefore, we performed phantom and clinical studies to assess this difference.
Narumi, Taguchi, Seitaro, Oda, Takeshi, Nakaura, Daisuke, Utsunomiya, Yoshinori, Funama, Masanori, Imuta, Hideaki, Yuki, Yasunori, Nagayama, Masafumi, Kidoh, Kenichiro, Hirata, Yuji, Iyama, Tomohiro, Namimoto, Noriyuki, Kai, Masahiro, Hatemura, Yasuyuki, Yamashita   +14 more
openaire   +2 more sources

Abdomen aigu sur une torsion de rate ectopique: à propos d'un cas

The Pan African Medical Journal, 2012
La rate ectopique est une entité rare dont l'incidence est mal connue. La torsion de son pédicule est une complication grave, qui doit bénéficier d'un diagnostic précoce; évitant ainsi la splénectomie surtout chez des patients jeunes.
Elhattabi Khalid, Bensardi Fatimazahra, Lefriyekh Rachid, Fadil Abdelaziz, Lahkim Mohamed, Benissa Nadia, Khaiz Driss, Berrada Saad, Zerouali Ouariti Najib   +8 more
doaj   +1 more source

Le n'ud ileosigmoidien: ' propos de 2 cas

The Pan African Medical Journal, 2012
Le n'ud iléosigmoïdien ou l'ileosigmoid knot (ISK), est une entité clinique exceptionnelle, c'est une urgence chirurgicale caractérisée par une strangulation du grêle en formant un n'ud autour de la base du colon sigmoïde avec risque de nécrose rapide du
Fatimazahra Bensardi, Khalid Elhattabi, Abdelaziz Fadil, Nadia Benissa, Rachid Lefriyekh, Driss Khaiz1, Saad Berrada, Ouariti Najib Zerouali   +6 more
doaj   +1 more source

Découverte d'une tumeur grêlique suite à une occlusion intestinale aigue chez une femme enceinte: à propos d'un cas

The Pan African Medical Journal, 2015
L'association d'un cancer digestif avec la grossesse est rare et concerne avant tout les cancers colorectaux, de l'estomac ainsi que ceux se révélant par une tumeur de Krukenberg. Le diagnostic est souvent tardif expliquant la fréquence élevée des stades
Naoufal Chouaib, Mostafa Rafai, Anas El Bouti, Ahmed Belkouch, Hicham El bakkali, Lahcen Belyamani   +5 more
doaj   +1 more source

Spectral aortoiliac photon-counting CT angiography with minimal quantity of contrast agent

Radiology Case Reports, 2023
The incidence of vascular and especially aortic pathologies is increasing, which leads to a higher frequency of vascular imaging. As renal pathologies also become more frequent, especially in an aging population, the need for effective preventative scan ...
Stephan Rau, MD, Martin Soschynski, MD, Christopher L. Schlett, MD, MPH, Muhammad T. Hagar, MD   +3 more
doaj   +1 more source

Subharmonic and Endoscopic Contrast Imaging of Pancreatic Masses: A Pilot Study. [PDF]

, 2017
OBJECTIVES: To use subharmonic imaging (SHI) to depict the vascularity of pancreatic masses compared to contrast-enhanced endoscopic ultrasound (EUS) and pathologic results.
Eisenbrey, John R., Forsberg, Flemming, Fox, Traci, Kowalski, Thomas E., Liu, Ji-Bin, Loren, David E., Lyshchik, Andrej, Miller, Cynthia, O\u27Kane, Patrick, Siddiqui, Ali, Stanczak, Maria   +10 more
core   +2 more sources