Liver virtual non-enhanced CT with dual-source, dual-energy CT: a preliminary study.

Purpose: To compare virtual non-enhanced liver CT (VNCT) from dual-energy CT (DECT) with true non-enhanced liver CT (TNCT) in patients.

Methods: A total of 102 patients underwent multi-phase abdominal CT. Liver arterial VNCT (VNCT(A)) and portovenous VNCT (VNCT(V)) images were derived from the arterial and portovenous DECT data.

Comparative study of the sensitivity of ADC value and T₂ relaxation time for early detection of Wallerian degeneration.

Background And Purpose: Wallerian degeneration (WD), the secondary degeneration of axons from cortical and subcortical injuries, is associated with poor neurological outcome. There is some quantitative MR imaging techniques used to estimate the biologic changes secondary to delayed neuronal and axonal losses. Our purpose is to assess the sensitivity of ADC value and T(2) relaxation time for early detection of WD.

Dual-energy CT angiography in the evaluation of intracranial aneurysms: image quality, radiation dose, and comparison with 3D rotational digital subtraction angiography.

Objective: The purpose of this study was to evaluate the image quality, radiation dose, and diagnostic accuracy of dual-energy CT angiography (CTA) compared with 3D rotational digital subtraction angiography (DSA) in the detection of intracranial aneurysms.

Subjects And Methods: Forty-six patients with clinically suspected intracranial aneurysms underwent dual-source dual-energy CTA and 3D DSA. For the analysis of the image quality and radiation dose of dual-energy CTA, 46 patients who underwent digital subtraction CTA were recruited as a control group.

[Biological activity assays and cellular imaging of anti-human sperm protein 17 immunomagnetic nanoparticles].

Aim: To prepare anti-Sperm protein 17 (Sp17) immunomagnetic nanoparticles (IMNPs), and make foundation for target diagnosis of ovarian cancer by magnetic resonance imaging.

Methods: The anti-human Sp17 IMNPs were prepared by grafting anti-Sp17 antibodies on the surface of chitosan-coated magnetic nanoparticles (MNPs) using the linker of EDC/NHS (1-ethyl-3-[3-dimethylaminopropyl]carbodiimide/N-hydroxysuccinimide). The morphology and properties of the nanoparticles were characterized by transmission electronic microscopy (TEM), the conjugation of the antibodies was evaluated by native-polyacrylamide gel electrophoresis, the immunologic activity of IMNPs was evaluated by enzyme linked immunosorbent assay (ELISA).

Detection of pulmonary embolism by dual energy CT: correlation with perfusion scintigraphy and histopathological findings in rabbits.

The purpose of the study was to compare the ability of dual energy CT (DECT) and perfusion scintigraphy (PS) to detect pulmonary embolism (PE) in a rabbit model. Gelfoam (n = 20) or saline (n = 4) was injected into the femoral vein of rabbits. After 2 h, DECT pulmonary angiography (CTPA) was used to create blood flow imaging (BFI) and fusion images.

Detection of pulmonary embolism using dual-energy computed tomography and correlation with cardiovascular measurements: a preliminary study.

Background: Detection of a suspected pulmonary embolism (PE) has been the focus of considerable research over the past few decades. Recently developed dual-source computed tomography (DSCT) scanners with dual-energy mode have been used to detect PE, but the studies on this topic are few.

Purpose: To assess the clinical value of dual-source, dual-energy CT (DECT) for the diagnosis of suspected PE and to correlate with cardiovascular measurements.

Multiphase evaluation of myocardial bridging with dual-source computed tomography.

Background: Myocardial bridging (MB), also known as a tunneled artery, is a congenital anomaly that can be readily diagnosed with multidetector-row computed tomography (MDCT). With the advent of dual-source CT (DSCT), it may be feasible to evaluate dynamic changes of MB throughout the entire cardiac cycle.

Purpose: To determine the feasibility of dynamic evaluation of MB using DSCT.

Pulmonary embolism detection with dual-energy CT: experimental study of dual-source CT in rabbits.

Purpose: To evaluate feasibility and added value of dual-energy computed tomography (CT) in diagnosis of pulmonary embolism (PE).

Materials And Methods: This institutional animal experimental committee-approved study was performed in accordance with animal care guidelines. Eight New Zealand rabbits underwent standard unenhanced and contrast material-enhanced dual-source CT.

Anomalous origin of the right coronary artery originating from the left coronary sinus of valsalva with an interarterial course: diagnosis and dynamic evaluation using dual-source computed tomography.

Purpose: The purpose of this study was to assess the clinical value of dual-source computed tomography (DSCT) in the detection and dynamic evaluation of the anomalous origin of the right coronary artery originating from the left coronary sinus of Valsalva (ARCAOLS) with an interarterial course.

Materials And Methods: Thirteen patients with ARCAOLS with an interarterial course and 11 controls with normal origin of the right coronary artery (RCA) were included into this study from December 2006 to April 2008. The origin and course of the RCA were determined on maximum intensity projection, volume rendering, and virtual endoscopy images.

Primary alveolar soft part sarcoma of vertebra: a case report and literature review.

Alveolar soft part sarcoma (ASPS) is a rare malignant soft tissue tumor, which rarely occurs in bone. We present a case of ASPS in a 23-year-old man with a 2-month history of back pain. Computed tomography scanning and magnetic resonance images demonstrated a destructive process in the 12th thoracic vertebra associated with a unilateral soft tissue mass.

[Expression of TBX3 mRNA and its role in the pathogenesis and metastasis of breast cancer].

Objective: To explore the role of TBX3 gene in the pathogenesis of breast cancer.

Methods: The total RNA of 51 fresh breast cancer tissues and the corresponding adjacent tissues were extracted and reverse transcribed into cDNA to detect the expression of TBX3 mRNA by real-time PCR. The correlation between TBX3 mRNA expression and the clinicopathologic parameters in relation to breast cancer metastasis was analyzed.

[Myocardial bridging on dual-source CT: comparison with conventional coronary angiography].

Objective: To assess the ability to detect myocardial bridging (MB) of dual-source computed tomography (DSCT) compared with conventional coronary angiography (CAG).

Methods: Both DSCT coronary angiography (DSCTCA) and CAG were performed on 53 patients diagnosed or suspected as with coronary artery disease (CAD), 45 males and 8 females, aged 36-87. 4D cine mode was performed on 16 of these 53 patients with MB shown on DSCTCA, and the CAG data were reviewed retrospectively by automatic cine method.

Anatomical investigation of the sinus node artery using dual-source computed tomography.

Background: Few investigators have studied the anatomy of the sinus node artery (SNA) using noninvasive imaging modalities, so the objective of this study was to visualize the in-vivo 3-dimensional anatomical relations of the SNA using dual-source computed tomography (DSCT).

Methods And Results: In the 101 patients included in this study, the visualization rate, anatomical type and diameter of the SNA, the distance between the orifice and coronary artery, and the terminal type of SNA were recorded. The visualization rate was 95.

Comparison of myocardial bridging by dual-source CT with conventional coronary angiography.

Background: The diagnosis of myocardial bridging (MB) is of clinical importance because of the association between MB and compromised coronary flow. The aim of this study was to compare the ability of dual-source computed tomography (DSCT) and conventional coronary angiography (CAG) to detect MB.

Methods And Results: DSCT were performed in 53 patients and 4-dimensional (D) reconstruction was subsequently performed in 16 patients with MB for double-blinded comparison with the findings of CAG.

Loss of expression of EphB1 protein in gastric carcinoma associated with invasion and metastasis.

Objective: EphB1 is a member of the Eph family of receptor tyrosine kinases that is involved in embryonic nervous and vascular system development. Over- or underexpression of certain Eph receptors has been found in some cancer samples compared to normal tissue. Expression of Eph receptors is related to malignant transformation, metastasis, differentiation, and prognosis of cancers.

Noninvasive diagnosis of bronchial artery aneurysm using dual-source computed tomography angiography.

Bronchial artery aneurysm is a rare entity, detected in less than 1% of all patients undergoing selective bronchial arteriograms. Approximately 50 cases have been reported so far. Computed tomography (CT) reports of mediastinal bronchial artery aneurysms are rare.

[Value of CT enhancement degree in differential diagnosis between pancreatic carcinoma and inflammatory pancreatic mass].

Objective: To compare the CT enhancement degree in pancreatic carcinoma (PC) and inflammatory pancreatic mass (IPM), and to study the diagnostic value of CT to these two diseases.

Methods: Eighty-five patients with PC or IPM, 47 males and 38 females, aged 62 (37-79), underwent plain CT scanning and enhanced CT scanning in pancreatic phase and delay phase. The CT values of the pancreatic mass and relative normal pancreatic tissue were measured.

[Computer tomography appearances of the enterocutaneous fistula classification].

Objective: To discuss the computer tomography(CT) appearances of the enterocutaneous fistula classification.

Methods: CT scan was performed on 754 patients with enterocutaneous fistula, which were divided into tube fistula and labiate fistula according to clinic classification, and the appearances of CT scan were analyzed respectively.

Results: Five hundreds and eighteen patients (68.

[Effects of zinc supplementation on zinc and calcium levels in serum and tissue in burned rats].

Objective: To explore the effects of zinc supplementation on zinc and calcium levels in serum and tissue in burned rats.

Methods: Eighty SD rats were randomly divided into C group (control group without scald, n = 8), and N, W, H groups (each consisting of 24 rats), in which the rats were exposed to scalding resulting in partial thickness burns covering 15% of the total body surface area on the back, and then they were fed with diets containing zinc 40 microg/g in N and W groups, and 80 microg/g in H group. A cream containing zinc 761.

[Value of dynamic enhanced magnetic resonance in diagnosis of pancreatic carcinoma and endocrine tumors].

Objective: To explore the value of dynamic enhanced magnetic resonance (MR) in diagnosis of pancreatic carcinoma and endocrine tumors.

Methods: Twenty-two patients with pancreatic carcinoma and 9 patients with pancreatic endocrine tumors underwent routine MR scanning and dynamic contrast enhanced MR examination before they underwent operation.

Results: No tumor image was seen in 4 of the 22 patients with pancreatic carcinoma by routine MR scanning.

[The correlation study of CT enhancement, intratumoral microvessel density and pathological grades in pancreatic carcinoma].

Objective: The purpose of this work was to study the correlation of pancreatic phase CT enhancement, intratumoral microvessel density (MVD) and histopathological grades in pancreatic carcinoma and to evaluate the relationship between CT enhancement degree and the malignancy degree of pancreatic carcinoma.

Methods: 34 patients with pancreatic carcinoma underwent CT scanning before resection. The enhancement degrees and forms of tumor were observed in pancreatic-phase.