Optimized Enhancement in Helical CT: Experiences With a Real-Time Bolus Tracking System in 628 Patients

Kirchner, Johannes; Kickuth, Ralph; Laufer, Ulf; Noack, Moritz; Liermann, D.

doi:10.1053/crad.2000.0376

Cited by 88 publications

(37 citation statements)

References 13 publications

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“…Modern multisection CT scanners allow to image the entire region from the common carotid arteries up to the circle of Willis in a single data acquisition. The bolus tracking method to optimally acquire the contrast bolus has been established [16] . Postprocessing techniques are in part similar to those described previously for MRA.…”

Section: Computed Tomography Angiographymentioning

confidence: 99%

Noninvasive Angiography (Magnetic Resonance and Computed Tomography) in the Diagnosis of Ischemic Cerebrovascular Disease

et al. 2007

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Noninvasive diagnostic imaging of the craniocervical and intracranial vasculature is a domain of computed tomography angiography (CTA), magnetic resonance angiography (MRA) and Doppler/duplex ultrasound, the latter not being the topic of this presentation. We give a methodological background for both, CTA and MRA, followed by a critical appraisal of both imaging modalities in the diagnosis of ischemic cerebrovascular disease. The contribution of noninvasive vascular imaging to vascular malformations (including aneurysms, fistulas and cerebral-vein thrombosis) is beyond the scope of this paper and therefore not covered.

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Section: Computed Tomography Angiographymentioning

confidence: 99%

Noninvasive Angiography (Magnetic Resonance and Computed Tomography) in the Diagnosis of Ischemic Cerebrovascular Disease

et al. 2007

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“…For the contrastenhanced scan, 50 ml of nonionic iodinated contrast agent (Omnipaque350; Daiichi Pharmaceutical, Tokyo) was injected at 3.0 ml/s, followed by 30 ml at 1.5 ml/s. The start of contrast-enhanced scanning was adapted to bolus tracking system images (Kirchner 2000). All scans were performed during a single breath-hold.…”

Section: Msct Protocolmentioning

confidence: 99%

Impact of Glucose Intolerance on Coronary Calcified Lesions Evaluated Using Multislice Computed Tomography

Nomura

Yamanouchi

Kim³

et al. 2007

Tohoku J. Exp. Med.

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Metabolic syndrome has the unique concept that the common occurrence of individual disease components increases the risk of coronary artery disease (CAD). However, some studies suggest that the burden of different CAD risk factors is not equal, and focusing on the whole set of risk factors might neglect the impact of individual factors that could be useful targets for prophylactic therapies. The purpose of this study was to investigate the effect of glucose intolerance on CAD using multislice computed tomography (MSCT). Ninety-eight consecutive patients with at least one traditional CAD risk factor who visited a municipal hospital were enrolled in this study. The risk factors were impaired glucose tolerance (fasting glucose 110 mg/ dl or patients with diabetes), low high-density lipoprotein cholesterol (HDL-C, < 40 mg/dl for men and 50 mg/dl for women), hypertriglycemia (triglyceride 150 mg/dl), hypertension (blood pressure 130/85 mmHg), and obesity (body mass index, > 25 kg/m 2 for men and > 23 kg/m 2 for women). CAD was determined by the presence of either stenoses, non-calcified plaques or calcified lesions. The following risk factors were significantly related in univariate logistic models: glucose intolerance and coronary calcified lesions ( p = 0.001), and hypertriglycemia and non-calcified plaque lesions ( p = 0.048). Multivariate models showed that glucose intolerance was significantly associated with calcified lesions, even after adjustment for gender, age, low HDL-C, hypertriglycemia, hypertension, and obesity ( p = 0.018). Our results suggest that glucose intolerance might be closely related to the presence of coronary calcified lesions among traditional CAD risk factors. coronary artery disease; coronary calcified lesion; glucose intolerance; metabolic syndrome; multislice computed tomography © 2007 Tohoku University Medical Press Coronary artery disease (CAD) is the leading cause of death in industrialized countries. Because CAD is often associated with sudden death from cardiac arrest, the early identification of high-risk subjects is critical. Therefore, risk factors for CAD have been studied extensively

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“…Mit modernen MSCT-Geräten kann die gesamte Region vom Karotishauptstamm bis zum Circulus Wilisii in einem Untersuchungsgang von weniger als 20 s dargestellt werden. len zeitlichen Abstimmung der Bolusgabe wird die Bolus-Tracking-Methode verwendet [9]. Die Bilder werden mit einer Schichtdicke von 1,25 mm in überlappen-den Stufen von 0,7 mm rekonstruiert.…”

Section: Ct-angiographie (Cta)unclassified

Multimodale Computertomographie beim akuten Hirninfarkt

et al. 2004

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Computed tomography (CT) is the standard method of brain imaging in acute stroke. To an experienced examiner, nonenhanced CT will exclude hemorrhage and may indicate early ischemic signs. Reliable description of an ischemic area and the underlying vascular disease is not possible in the acute phase but is possible, particularly within the first hours, when therapeutic decisions on matters such as systemic thrombolysis are to be made. For such rapid decision-making, imaging must provide more information. Novel, contrast-enhanced CT techniques can provide this information. Perfusion CT (CTP) can show brain perfusion, allowing one to distinguish between reversible and irreversible damage in an ischemic area. Also, CT angiography (CTA) can detect occlusion or stenosis in the relevant vasculature. Using a modern, multislice CT scanner, it is now possible to combine these modalities of imaging. In a fast protocol for emergency evaluation, all three methods can be performed and evaluated to provide the crucial information within 15 min. In the first 102 patients examined within 6 h of symptom onset using this protocol, multimodal CT contributed substantially to therapeutic decisions, even though there are some limitations in these methods.

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Optimized Enhancement in Helical CT: Experiences With a Real-Time Bolus Tracking System in 628 Patients

Cited by 88 publications

References 13 publications

Noninvasive Angiography (Magnetic Resonance and Computed Tomography) in the Diagnosis of Ischemic Cerebrovascular Disease

Noninvasive Angiography (Magnetic Resonance and Computed Tomography) in the Diagnosis of Ischemic Cerebrovascular Disease

Impact of Glucose Intolerance on Coronary Calcified Lesions Evaluated Using Multislice Computed Tomography

Multimodale Computertomographie beim akuten Hirninfarkt

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