Assessing the clinical utility of color Doppler ultrasound for ovarian torsion in the setting of a negative contrast-enhanced CT scan of the abdomen and pelvis

2015 ◽  
Vol 40 (8) ◽  
pp. 3206-3213 ◽  
Author(s):  
Alexander Lam ◽  
Megha Nayyar ◽  
Mohammad Helmy ◽  
Roozbeh Houshyar ◽  
Wanda Marfori ◽  
...  
Keyword(s):  
Ct Scan ◽  
Doppler Ultrasound ◽  
Clinical Utility ◽  
Color Doppler ◽  
Negative Contrast ◽  
Color Doppler Ultrasound ◽  
Ovarian Torsion ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct

Comparison and correlation of CT scan and MRI for focal liver lesion detection and characterization

2021 ◽  
Vol 12 (2) ◽  
pp. 81-84
Author(s):  
M T Makada ◽  
Keyword(s):  
Ct Scan ◽  
Clinical Symptoms ◽  
Color Doppler ◽  
Lesion Detection ◽  
Benign Lesions ◽  
Female Ratio ◽  
Standard Format ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct

Background: Liver diseases create diagnostic challenge for attending clinicians. Role of radiological imaging, particularly newer modalities like Ultrasound, Color Doppler, CT scan, MRI, DSA, are highly reliable. Early identification of liver lesions provides the opportunity for the success of therapeutic approach. Contrast enhanced CT scan and contrast enhanced MRI are most advanced and appropriate modalities to detect and characterize liver focal lesions. In present study we tried to compare and correlate findings of both modalities. Methodology: We evaluated 40 cases of liver pathologies which are suspected in sonography examination. All patients were undergone contrast enhanced CT scan as well as MRI evaluation. Various radiological findings are recorded in standard format. Result: In total 40 patients of focal liver pathology all age groups are included. Male: female ratio is 70:30.Patients are presented with various clinical symptoms like right hypochondriac pain, fever, lump, jaundice, weight loss etc. Benign lesions are found in 40% of cases and malignant lesions are found in 60 % of cases. Most common pathology is liver metastatic lesions which are picked up by MRI with 100% accuracy. CT is able to characterize only 10 out of 13 metastatic cases(77%). Few other cases of benign lesions like hemangioma, hamartoam ,adenoma and FNH are also remained indeterminate in CT scan which all are accurately diagnosed and characterized by MRI and confirmed in histopathology. A case of HCC, lymphoma and nodular dysplasia also remained indeterminate in CT scan and further diagnosed and characterized by MRI.

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 Gray Scale Ultrasound, Color Doppler Ultrasound, and Contrast-Enhanced Ultrasound in Renal Parenchymal Diseases

2018 ◽  
Vol 34 (4) ◽  
pp. 250-267 ◽  
Author(s):  
Emilio Quaia ◽  
Jean Michel Correas ◽  
Maithili Mehta ◽  
John T. Murchison ◽  
Antonio Giulio Gennari ◽  
...  
Keyword(s):  
Doppler Ultrasound ◽  
Color Doppler ◽  
Color Doppler Ultrasound ◽  
Contrast Enhanced Ultrasound ◽  
Gray Scale ◽  
Contrast Enhanced

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
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