Brachiocephalic Veins ; surgery ; Decision Making ; Heart Atria ; Humans ; Male ; Middle Aged ; Prosthesis Failure ; Stents ; Tomography, X-Ray Computed ; Treatment Outcome

Adult ; Animals ; Anthelmintics ; administration & dosage ; Antibodies, Helminth ; blood ; Benzimidazoles ; administration & dosage ; Fasciola hepatica ; drug effects ; immunology ; Fascioliasis ; blood ; diagnosis ; drug therapy ; physiopathology ; Humans ; Magnetic Resonance Imaging ; methods ; Male ; Tomography, X-Ray Computed ; methods ; Treatment Outcome

Recent advances in the noninvasive imaging of chronic liver disease have led to improvements in diagnosis, particularly with magnetic resonance imaging (MRI). A comprehensive evaluation of the liver may be performed with the quantification of the degree of hepatic steatosis, liver iron concentration, and liver fibrosis. In addition, MRI of the liver may be used to identify complications of cirrhosis, including portal hypertension, ascites, and the development of hepatocellular carcinoma. In this review article, we discuss the state of the art techniques in liver MRI, namely, magnetic resonance elastography, hepatobiliary phase MRI, and liver fat and iron quantification MRI. The use of these advanced techniques in the management of chronic liver diseases, including non-alcoholic fatty liver disease, will be elaborated.
Ascites ; Carcinoma, Hepatocellular ; Diagnosis ; Elasticity Imaging Techniques* ; Fatty Liver ; Fibrosis ; Hypertension, Portal ; Iron ; Liver Cirrhosis ; Liver Diseases* ; Liver* ; Magnetic Resonance Imaging* ; Non-alcoholic Fatty Liver Disease

Adult ; Ascites ; diagnosis ; etiology ; Biopsy ; Diagnosis, Differential ; Duodenal Obstruction ; diagnosis ; etiology ; Endoscopy, Gastrointestinal ; Enteritis ; complications ; drug therapy ; Eosinophilia ; complications ; drug therapy ; Gastritis ; complications ; drug therapy ; Humans ; Intestinal Mucosa ; pathology ; Male ; Tomography, X-Ray Computed

UNLABELLEDWe hypothesise that correct interpretation of other diagnostic tests could reduce the use of computerised tomographic pulmonary angiogram (CTPA) examinations in patients with suspected pulmonary embolism (PE).

MATERIALS AND METHODSWe carried out a retrospective analysis of 158 patients in a 928-bed university hospital. These consecutive patients were investigated for suspected PE from May 2001 to February 2002 using CTPA.

RESULTSThere were 74 men and 84 women with a mean (+/-SD) age of 57 (+/-19) years. Overall, 56% of patients (89/158) showed clinically significant abnormalities on the CTPA examination. The overall prevalence of PE was 15% (24/158). The D-dimers were assayed in 40% (63/158) and lower limbs were scanned with Doppler ultrasound (US) in 22% (35/158) of patients. None of the 19 patients with negative D-dimer assays had PE. Of the patients who were positively tested on Doppler US, 4 were positive and 1 was negative for PE on the CTPA. None of the patients with positive Doppler US had negative D-dimer test. In retrospect, patient management based on negative D-dimer assays and positive lower extremity Doppler US studies could have reduced the need for further investigation with CTPA by 15% (24/158).

CONCLUSIONIn patients with suspected PE, correct interpretation of D-dimer and leg Doppler US tests may reduce the demand for CTPAs.

Adult ; Aged ; Angiography ; methods ; Female ; Fibrin Fibrinogen Degradation Products ; analysis ; Humans ; Leg ; diagnostic imaging ; Male ; Middle Aged ; Predictive Value of Tests ; Pulmonary Artery ; diagnostic imaging ; Pulmonary Embolism ; diagnosis ; Retrospective Studies ; Sensitivity and Specificity ; Tomography, Spiral Computed ; Tomography, X-Ray Computed ; Ultrasonography, Doppler

Diagnosis, Differential ; Endocarditis ; etiology ; physiopathology ; Foreign Bodies ; complications ; Heart ; physiopathology ; Humans ; Male ; Needles ; adverse effects

INTRODUCTIONThe severity of acute pulmonary embolism can be assessed with computed tomography (CT) using clot burden estimation. We compared the existing CT obstruction scores with an in-house developed central clot score for the prediction of 30-day pulmonary embolism (PE)-related mortality.

MATERIALS AND METHODSIn 125 consecutive patients [47 men, 78 women; mean age +/- standard deviation (SD, 60.4 years +/- 16.6] with acute PE, 2 readers in consensus assessed the severity of PE with 2 existing clot scoring systems (Mastora and Qanadli) and central clot score. The right ventricular dysfunction was assessed by right ventricular diameter (RVD), left ventricular diameter (LVD), ventricular ratio (VR) and septal deviation. Univariate and multivariate regression analysis were performed to correlate these parameters and 30-day PE-related mortality.

RESULTSTen patients (8%) died of PE within 30 days following CT and 115 patients did not have PE-related death outcome. There was a significant difference in all 3 clot scores, LVD and VR between patients with 30-day PE-related death and those without (P < or =0.001-0.02). Univariate regression analysis showed that all three clot scores and LVD were predictors of PE death, however with multivariate analysis, only central clot score showed significant correlation with 30-day PE death [Odds ratio (OR), 1.1; 96% CI, 1-1.16; P <0.003]. A central clot index of 53% had 100% sensitivity, 76.5% specificity, 23.5% positive predictive value and 98% negative predictive value for 30-day PE death.

CONCLUSIONCentral clot score is a strong predictor of 30-day PE death and may therefore allow therapy and risk stratification in patients with acute PE.

Acute Disease ; Adolescent ; Adult ; Aged ; Aged, 80 and over ; Blood Coagulation ; Female ; Forecasting ; Humans ; Male ; Middle Aged ; Pulmonary Embolism ; mortality ; Severity of Illness Index ; Tomography, X-Ray Computed ; Young Adult

Imaging plays a critical role in the management of chronic liver disease (CLD) because it is a safe and painless method to assess liver health. The widely used imaging techniques include ultrasound, computed tomography and magnetic resonance imaging. These techniques allow the measurement of fat deposition, iron content, and fibrosis, replacing invasive liver biopsies in many cases. Early detection and treatment of fibrosis are crucial, as the disease can be reversed in its early stages. Imaging also aids in guiding treatment decisions and monitoring disease progression. In this review, we describe the most common imaging manifestations of liver disease and the current state-of-the-art imaging techniques for the evaluation of liver fat, iron, and fibrosis.

Imaging plays a critical role in the management of chronic liver disease (CLD) because it is a safe and painless method to assess liver health. The widely used imaging techniques include ultrasound, computed tomography and magnetic resonance imaging. These techniques allow the measurement of fat deposition, iron content, and fibrosis, replacing invasive liver biopsies in many cases. Early detection and treatment of fibrosis are crucial, as the disease can be reversed in its early stages. Imaging also aids in guiding treatment decisions and monitoring disease progression. In this review, we describe the most common imaging manifestations of liver disease and the current state-of-the-art imaging techniques for the evaluation of liver fat, iron, and fibrosis.

Imaging plays a critical role in the management of chronic liver disease (CLD) because it is a safe and painless method to assess liver health. The widely used imaging techniques include ultrasound, computed tomography and magnetic resonance imaging. These techniques allow the measurement of fat deposition, iron content, and fibrosis, replacing invasive liver biopsies in many cases. Early detection and treatment of fibrosis are crucial, as the disease can be reversed in its early stages. Imaging also aids in guiding treatment decisions and monitoring disease progression. In this review, we describe the most common imaging manifestations of liver disease and the current state-of-the-art imaging techniques for the evaluation of liver fat, iron, and fibrosis.