Results 21 to 30 of about 40,540 (198)

Shifted Helical Computed Tomography to Optimize Cardiac Positron Emission Tomography–Computed Tomography Coregistration: Quantitative Improvement and Limitations

Molecular Imaging, 2010
Positron emission tomography–computed tomography (PET-CT) uses CT attenuation correction but suffers from misregistration artifacts. However, the quantitative accuracy of helical versus cine CT in the same patient after optimized coregistration by ...
Nils P. Johnson, Tinsu Pan, K. Lance Gould   +2 more
doaj   +1 more source

Diagnostic Performance of Quadruple Phase Multidetector Row Computed Tomography in Hepatoma: Comparison with Histopathological Diagnosis

Journal of the Dow University of Health Sciences, 2019
Objective: To determine diagnostic accuracy of quadruple phase helical computed tomography scan in detection of hepatocellular carcinoma in individuals with hepatitis B and C, keeping histopathology as the gold standard.
Saadia Sarwar Soomro, Muhammad Saad Ahmed, Sheeza Imtiaz, Waseem Mehmood Nizamani, Muhammad Kashif Shazlee, Saifullah Obaidullah   +5 more
doaj   +1 more source

Preservative Approach to Study Encased Archaeological Artefacts [PDF]

, 2014
International audienceWe propose a workflow based on a combination of computed tomography, 3D images and 3D printing to analyse different archaeological material dating from the Iron Age, a weight axis, a helical piece, and a fibula.
Arnaldi, Bruno, Gaugne, Ronan, Gouranton, Valérie, Nicolas, Théophane, Tavernier, Cédric   +4 more
core   +4 more sources

Optimization of helical acquisition parameters to preserve uniformity of mouse whole body using multipinhole collimator in single-photon emission computed tomography

Results in Physics, 2016
Focusing on whole-body uniformity in small-animal single-photon emission computed tomography (SPECT), we examined the optimal helical acquisition parameters using five-pinhole collimators for mouse imaging.
Naoyuki Ukon, Naoki Kubo, Masayori Ishikawa, Songji Zhao, Nagara Tamaki, Yuji Kuge   +5 more
doaj   +1 more source

Helical computed tomography of the normal thoracic outlet [PDF]

Journal of Vascular Surgery, 1997
This study was performed to determine the detailed anatomy of the thoracic outlet in normal subjects using helical computed tomography (CT), with particular attention to vascular compression with arm movement.Ten volunteers underwent detailed clinical evaluation and helical CT scanning of the upper thorax and neck with the arm in a neutral position and
Matsumura, Jon S., Rilling, William S., Pearce, William H., Nemcek, Albert A., Vogelzang, Robert L., Yao, James S.T.   +5 more
openaire   +2 more sources

MRI of the lung (3/3)-current applications and future perspectives [PDF]

, 2011
BACKGROUND: MRI of the lung is recommended in a number of clinical indications. Having a non-radiation alternative is particularly attractive in children and young subjects, or pregnant women.
A Hebestreit, A Kluge, A Kluge, A Kluge, AA Bankier, AC Henderson, AS Brody, BJ Pichler, BJ Pichler, C Fink, C Hintze, C Hintze, C Rieger, CA Yi, CA Yi, CP Heussel, DM Mannino, F Molinari, F Risse, F Santamaria, G Antoch, G Antoch, G Bauman, G Bauman, G Lutterbey, G Lutterbey, G Sergiacomi, H Hatabu, H Zaidi, HF Wehrl, HK Song, HK Song, IL Theissen, J Biederer, J Biederer, J Biederer, J Biederer, J Biederer, J Biederer, J Biederer, J Ley-Zaporozhan, J Ley-Zaporozhan, JC Hogg, K Cederlund, K Sandek, K Suga, K Suga, LP Qi, M Bhalla, M Decramer, M Eichinger, M Gaeta, M Oudkerk, M Puderbach, M Puderbach, M Puderbach, M Puderbach, M Stern, M Wagner, MD Cohen, ND Abolmaali, NJ Morrison, NL Müller, O Ratib, PA Jong de, PA Jong de, PD Stein, PD Stein, R Eibel, R Failo, RE Jacob, RG McFadden, RJ Theilmann, RL Gibson, S Akata, S Montella, S Pauls, SK Alford, T Amundsen, T Iwasawa, T Iwasawa, T Iwasawa, T Mori, T Rupprecht, TA Kuder, TH Helbich, US Euler, V Peltola, W Hirsch, W Lin, Y Berthezène, Y Ohba, Y Ohno, Y Ohno, Y Ohno, Y Ohno, Y Shao   +96 more
core   +1 more source

Four-Dimensional Cardiac Image by Helical Computed Tomography [PDF]

Circulation, 1999
Ultrasound and MRI are useful in assessing wall motion and systolic thickening with 2D images. Volumetric data of the helical CT provide frozen 3D images. We sought to determine whether helical CT could assess left ventricular wall motion with 3D animation.
Y, Koyama, H, Matsuoka, H, Higasino, H, Kawakami, K, Inoue, T, Ito, M, Doi, S, Nakata, T, Mochizuki   +8 more
openaire   +2 more sources

Valence-programmable nanoparticle architectures. [PDF]

, 2020
Nanoparticle-based clusters permit the harvesting of collective and emergent properties, with applications ranging from optics and sensing to information processing and catalysis.
Gang, Oleg, Liu, Mingzhao, Nykypanchuk, Dmytro, Sun, Sha, Xin, Huolin L, Yang, Shize, Zhang, Honghu   +6 more
core  

A novel ultrafast-low-dose computed tomography protocol allows concomitant coronary artery evaluation and lung cancer screening [PDF]

, 2018
BACKGROUND:Cardiac computed tomography (CT) is often performed in patients who are at high risk for lung cancer in whom screening is currently recommended.
Bandiera, A, Barillari, P, Barillà, F, Gaudio, C, Mangieri, E, Paravati, V, Pellegrini, M, Pelliccia, F, Petriello, G, Tanzilli, A, Tanzilli, G   +10 more
core   +1 more source

Cryptorchid testis with torsion: Inguinoscrotal whirlpool sign

Indian Journal of Urology, 2016
Non contrast helical computed tomography (CT) study of the abdomen is frequently performed in evaluation of suspected ureteric colic. We present CT images of a young adult male patient who had torsion of an undescended, non-neoplastic testis and describe
Venkatraman Indiran
doaj   +1 more source