Non-contrast enhanced CT scan at the time of admission. The increased density (HU) in the peripheral segment of aneurysm is seen in the non-contrast image

ASVIDE ◽  
2018 ◽  
Vol 5 ◽  
pp. 291-291
Author(s):  
Paul Schoenhagen
Keyword(s):  
Ct Scan ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Time Of Admission ◽  
Contrast Image

The contrast-enhanced CT scan in the diagnosis of isodense subdural hematoma

1979 ◽  
Vol 50 (1) ◽  
pp. 64-69 ◽  
Author(s):  
Fong Y. Tsai ◽  
James E. Huprich ◽  
Hervey D. Segall ◽  
James S. Teal
Keyword(s):  
Cerebral Cortex ◽  
Ct Scan ◽  
Subdural Hematoma ◽  
Correct Diagnosis ◽  
Content Type ◽  
Subdural Hematomas ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Fine Print

✓ The authors review 29 cases of surgically-proven isodense subdural hematomas examined by non-contrast and contrast-enhanced computerized tomography scans. Three types of isodense collections were noted: homogeneous isodense collections, mixed-density collections, and gravitational layering within subdural collections. Contrast enhancement within the cerebral cortex, cortical vessels, and subdural membranes led to the correct diagnosis in each case. Contrast-enhanced scans are essential for the evaluation of isodense subdural hematomas.

scholarly journals Is CT Angiogram of the Abdominal Vessels Needed following the Diagnosis of Ischemic Colitis? A Multicenter Community Study

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Muhammed Sherid ◽  
Salih Samo ◽  
Samian Sulaiman ◽  
Husein Husein ◽  
Sankara N. Sethuraman ◽  
...  
Keyword(s):  
Ct Scan ◽  
Ischemic Colitis ◽  
Celiac Trunk ◽  
Ct Angiogram ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Group 3 ◽  
Group 5 ◽  
Atherosclerotic Changes

Background. CT angiogram is frequently obtained after diagnosis of ischemic colitis (IC). Aims. To investigate the vascular findings of CT angiogram as compared to contrast-enhanced CT scan and whether this modality changes the management or prognosis of IC. Methods. We conducted a retrospective analysis of patients with IC from 2007 to 2013. Results. CT angiogram was performed in 34 patients (28.81%), whereas contrast-enhanced CT scan was performed in 54 patients (45.76%). In CT angiogram group, 8 patients (23.5%) had atherosclerotic changes. Stenosis was found in 12 patients (35.3%) (9: celiac trunk, 3: SMA). Among this group, one patient underwent colectomy and another underwent angioplasty of the celiac trunk who died within 30 days. Among contrast-enhanced CT scan group, 5 patients (9.3%) had atherosclerotic changes. Stenosis was found in 5 patients (9.3%) (3: celiac trunk, 1: SMA, and 1: IMA). Among this group, 3 patients had colectomy and one died within 30 days. There was no statistical difference between both groups in all vascular findings except the stenosis which was higher in CT angiogram group (P=0.0025). Neither the need for surgery nor all-cause mortality was different between both groups. Conclusion. CT angiogram did not provide any useful findings that altered the management or the prognosis of IC.

scholarly journals Delayed response to proton beam treatment of hepatocellular carcinoma

2020 ◽  
Vol 6 (1) ◽  
pp. 20180125
Author(s):  
Chee-Wai Cheng ◽  
Mitchell Machtay ◽  
Jennifer Dorth ◽  
Olga Sergeeva ◽  
Hangsheng Xia ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Ct Scan ◽  
Proton Beam ◽  
Arterial Phase ◽  
Delayed Response ◽  
Data Set ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Imaging Response

Hepatocellular carcinoma (HCC) has become one of the leading causes of cancer death worldwide. There has been anecdotal report regarding the effectiveness of proton beam treatment for HCC. In this pre-clinical investigation, the woodchuck model of viral hepatitis infection-induced HCC was used for proton beam treatment experiment. The radiopaque fiducial markers that are biodegradable were injected around the tumor under ultrasound guidance to facilitate positioning in sequential treatments. An α cradle mode was used to ensure reproducibility of animal positioning on the treatment couch. A CT scan was performed first for contouring by a radiation oncologist. The CT data set with contours was then exported for dose planning. Three fractionations, each 750 CcGyE, were applied every other day with a Mevion S250 passive scattering proton therapy system. Multiphase contrast-enhanced CT scans were performed after the treatment and at later times for follow-ups. 3 weeks post-treatment, shrinking of the HCC nodule was detected and constituted to a partial response (30% reduction along the long axis). By week nine after treatment, the nodule disappeared during the arterial phase of multiphase contrast-enhanced CT scan. Pathological evaluation corroborated with this imaging response. A delayed, but complete imaging response to proton beam treatment applied to HCC was achieved with this unique and clinically relevant animal model of HCC.

18F-FDG-PET (PET) and contrast-enhanced CT-scan (CT) in the evaluation of liver metastases from colorectal cancer after chemotherapy

2005 ◽  
Vol 23 (16_suppl) ◽  
pp. 3710-3710
Author(s):  
C. Carnaghi ◽  
A. Chiti ◽  
K. Marzo ◽  
M. Rodari ◽  
L. Rimassa ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Liver Metastases ◽  
Ct Scan ◽  
Fdg Pet ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
18F Fdg

Contrast-enhanced CT scan in the early phase of acute pancreatitis

1989 ◽  
Vol 76 (8) ◽  
pp. 878-879 ◽  
Author(s):  
P.-A. Clavien ◽  
H. Hauser ◽  
P. Meyer ◽  
A. Rohner ◽  
N. J. M. London ◽  
...  
Keyword(s):  
Acute Pancreatitis ◽  
Ct Scan ◽  
Early Phase ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct

scholarly journals Brain CT Scan in Stroke

2016 ◽  
Vol 5 ◽  
pp. 18-23
Author(s):  
Amin Abolhasani Foroughi ◽  
Masoume Nazeri
Keyword(s):  
Ct Scan ◽  
Vascular Occlusion ◽  
Ct Scanning ◽  
Cerebrovascular Accidents ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Brain Ct Scan ◽  
Multimodal Ct ◽  
Roll Out

In patients came with suspicious cerebrovascular accidents, CT scan can play a major roll for diagnosis and treatment planning. In these patients we can do non contrast enhanced CT scan followed by perfusion CT scan and CT angiography. This three step CT scanning can be called multimodal CT. This strategy can help us to roll out hemorrhage and other differential diagnosis, it is useful to detect the site of vascular occlusion, the infarcted zone and the at risk salvageable tissue, also we can assess collateral circulation. This multimodal CT scan take about 10 to 15minuts. 

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