نتایج جستجو برای: spiral computed

تعداد نتایج: 230805  

B. Wang, D. Kong, D. Lu, G. Bo, J. Zhang, W. Huang, Y. Shi, Y. Zhuang,

Background: Prospectively electrocardiography (ECG)-triggered high-pitch spiral coronary computed tomography angiography (CCTA) is a unique scan mode for dual-source CT (DSCT). Our reports aim to compare image quality and radiation dose of CCTA using high-pitch spiral or sequential acquisition mode in patients with low and stable heart rates. Materials and Methods: Patients with low and stable ...

2005
Sanjay Pande

Technological breakthroughs in the 1990s have given rise to an exciting advance in medical imaging: spiral computed tomography (CT) remarkable speed and volumetric data acquisition set spiral CT apart from conventional CT. These advantages have improved the detection rates for laryngeal, thoracic, hepatic, pancreatic, and renal disease. Moreover, spiral CT technology has spawned a new vascular ...

2001
C Hong C Becker R Bruening MF Reiser

Objective: Multislice computed tomography is an emerging technology with the potential for non-invasive coronary investigation. The aim of this study was to evaluate the feasibility and limitations of multislice computed tomography in the detection of coronary artery disease. Patients and Methods: Multislice computed tomography was performed in symptomatic patients with atypical chest pain and ...

Journal: :Circulation 2002
U Joseph Schoepf Samuel Z Goldhaber Philip Costello

There is still considerable debate about the optimal diagnostic imaging modality for acute pulmonary embolism. If imaging is deemed necessary from an initial clinical evaluation such as d-dimer testing, options include nuclear medicine scanning, catheter pulmonary angiography, and spiral CT. In many institutions, spiral CT is becoming established as the first-line imaging test in daily clinical...

A. Mesbahi, I. Pesianian, S.M. Ghavami,

Background: X-ray computed tomography (CT) examinations deliver a significant amount of radiation doses to patients comparing to conventional radiography examinations. The objective of the current study was to analyze and investigate the average patient received dose from axial and spiral CT exams in a medical imaging center. Material and Methods: In this study, the patient imaging tec...

Journal: :The European respiratory journal. Supplement 2000
S J Howling D M Hansell

Spiral computed tomography pulmonary angiography is increasingly used in the non-invasive investigation of patients with suspected pulmonary embolism. This review will focus on current techniques and indications with an explanation of the computed tomography signs of pulmonary embolism, possible pitfalls in interpretation and limitations of the technique.

2014
Chintan Joshi Surabhi Joshi

C-shaped configuration in the upper maillary first molar is an extremely rare appearance (0.12%). This case reports management of the tooth with such a configuration as well as depiction of its internal morpholgy and external morphology through spiral computed tomography and dentascan in the contralateral tooth with similar morphology. After careful clinical observation and confirmation through...

Journal: :Journal of Magnetic Resonance Imaging 2004

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