Computed tomography radiomics study of invasion and instability of lung adenocarcinoma manifesting as ground glass nodule.

Background: Ground-glass nodule (GGN) is the most common manifestation of lung adenocarcinoma on computed tomography (CT). Clinically, the success rate of preoperative diagnosis of GGN by puncture biopsy and other means is still low. The aim of this study is to investigate the clinical and radiomics characteristics of lung adenocarcinoma presenting as GGN on CT images using radiomics analysis methods, establish a radiomics model, and predict the classification of pathological tissue and instability of GGN type lung adenocarcinoma.

Relationships between the coronary fat attenuation index for patients with heart-related disease measured automatically on coronary computed tomography angiography and coronary adverse events and degree of coronary stenosis.

Background: Pericoronary artery coronary tissue (PACT) is a type of epicardial fat that can reflect the state of the coronary artery (inflammation, etc.). However, it cannot be reasonably and efficiently utilized in routine computed tomography (CT) examination.

[Application Value of Motion-correction Phase Sensitive Inversion Recovery (MOCO-PSIR) to Evaluate Myocardial Fibrosis in Patients with Heart Failure Caused by Dilated Cardiomyopathy].

Objective: To study the application value of motion-correction phase sensitive inversion recovery (MOCO-PSIR) to evaluate myocardial fibrosis in the patients with heart failure caused by dilated cardiomyopathy (DCM).

Methods: A prospective study included 60 patients who underwent cardiac MRI enhanced scan from June 2017 to November 2018, including 38 patients who were clinically diagnosed with DCM and 22 patients in the normal control group. All patients were scanned with three late gadolinium enhancement (LGE) sequences: segmented-PSIR, single-shot-PSIR, MOCO-PSIR at the same time.

Pulmonary MALT Lymphoma has variable features on CT.

Pulmonary mucosa-associated lymphoid tissue (MALT) lymphoma is the most common primary pulmonary lymphoma. There are limited studies on imaging features of pulmonary MALT lymphoma. We present the computed tomography (CT) manifestations of pulmonary MALT lymphoma and the correlation between CT manifestations and clinical characteristics.

Solitary fibrous tumor of the soft palate: A report of two cases.

Solitary fibrous tumors (SFTs) are a unique group of mesenchymal neoplasms of fibroblastic or myofibroblastic origin and are extremely rare in the oral cavity. The present study reported two additional cases of SFTs in the soft palate, along with the computed tomography characteristics, which demonstrated well-circumscribed soft tissue lesions with marked and homogenous enhancement. Following wide resection, one of the cases showed certain malignant pathological characteristics, including infiltration of mucinous gland, hypercellularity, nuclear atypia and weak positive staining for S-100.

Computer tomography and magnetic resonance image manifestations of primary hepatic neuroendocrine cell carcinomas.

Aim: This study aims to investigate the manifestation of CT, MRI and dynamic enhanced scans for primary hepatic neuroendocrine cell carcinoma.

Methods: CT or MRI arterial and venous phase scan images of 19 cases of pathologically confirmed PHNEC were retrospectively analyzed.

Results: 14 cases (73.

Ectopic pancreas in the anterior mediastinum: A report of two cases and review of the literature.

Ectopia of the pancreatic tissue is a developmental anomaly found in ~2% of all autopsies, and 70~90% of these anomalies are located in the gastrointestinal tract. Mediastinal localization of an ectopic pancreas is extremely rare. Herein, we report two cases with mediastinal ectopic pancreas clarified by pathology and shown by thoracic contrast-enhanced computed tomography (CT) and magnetic resonance imaging (MRI).

[Image quality adapted thoracic diameters in CT coronary artery imaging].

Objective: To evaluate the correlation between image quality and thoracic diameters, anteroposterior diameter (AP) and right-left diameter (RL) for the optimization of reducing radiation dose in coronary artery imaging with Dual-source CT.

Methods: 118 patients underwent CT coronary artery imaging (CTCA) were divided into two groups (A and B) according to body mass index (BMI). There were 58 patients in group A with BMI values > or = 25 kg/m2 and < 30 kg/m2; and 60 patients in group B with BMI values < 25 kg/m2.

[The clinical value of combining multiple features of CT in discriminating between benign and malignant lung lesions].

Objective: To develop a set of combined criteria of multiple features of chest CT for discriminating between benign and malignant lung lesions.

Methods: Patients whose chest CT showed abnormalities were recruited from the West China Hospital in March and April 2010. The patients were examined with bronchoscopy and the results of CT and pathology were compared.

Primary angiosarcoma of the spleen as depicted on computed tomography.

Primary angiosarcoma of the spleen is rare, usually widespread or has a splenic rupture by the time of presentation, and almost always has poor prognosis; early radiological diagnosis is necessary for improving the survival rate. We report two special cases of this disease. Both patients did not have pathologic metastasis or splenic rupture, but their computed tomography (CT) manifestations were distinct from each other and had uncommon characteristics.

Isolated interrupted aortic arch accompanied by type B aortic dissection and extensive collateral arteries diagnosed with MDCT angiography.

Interrupted aortic arch (IAA) is a rare congenital cardiovascular condition. A patient with uncorrected IAA accompanied by rich collateral arteries can survive to adulthood asymptomatically. However, IAA complicated by aortic dissection is life threatening.

CT evaluation of hepatic paragonimiasis with simultaneous duodenal or splenic involvement.

Paragonimiasis is a parasitic infection caused by the genus Paragonimus and usually leads to pulmonary disease. Hepatic paragonimiasis is rare, but duodenal and splenic involvement of this disease has not yet been reported in the literature. Herein, we report two rare cases of hepatic paragonimiasis with simultaneous duodenal or splenic involvement, respectively, and described their CT features.

[Superior attachment of renal fascia: a study with multidetector computed tomography and three dimensional reconstruction].

Objective: To observe the superior attachment of renal fascia (RF) and the perirenal space (PS) in order to identify the spreading pathway of inflammatory and malignant tumors.

Methods: Multidetector computed tomography (MDCT), with double phase enhancement scanning and three dimensional reconstruction of images were performed on 121 healthy adults. The RF attachments upward were observed and their connections with the PS were evaluated.

Left atrial diverticula in patients referred for radiofrequency ablation of atrial fibrillation: assessment of prevalence and morphologic characteristics by dual-source computed tomography.

Background: The anatomic features of left atrial diverticula (LAD) are still unclear in patients with atrial fibrillation (AF). The purpose of this study was to evaluate the prevalence and morphological characteristics of LAD in patients referred for radiofrequency transcatheter ablation of AF with dual-source computed tomography.

Methods And Results: Dual-source computed tomography images were obtained in 214 patients referred for AF catheter ablation and 214 sex- and age-matched control subjects.

[Distinguishing benign and malignant lesions with time-signal intensity curve of dynamic contrast-enhanced breast MRI scanning].

Objective: To determine the diagnostic value of time-signal intensity curve (TIC) in distinguishing breast malignant tumors from benign lesions.

Methods: Forty-four patients with 50 breast lesions were recruited in the study, including 24 pathologically confirmed benign lesions and 26 malignant tumors. All patients received dynamic contrast-enhanced breast MRI scanning a week before surgery.

Correlations between MDCT features and clinicopathological findings of hepatic paragonimiasis.

Aim: To illustrate the MDCT features of hepatic paragonimiasis and correlate the results with clinicopathological findings.

Materials And Methods: Eighteen patients (8 male, 10 female; mean age 37years) with hepatic paragonimiasis were included in this study. MDCT features of their hepatic lesions were retrospectively reviewed and correlated with clinicopathological findings.

Correlation between sternal depression and cardiac rotation in pectus excavatum: Evaluation with helical CT.

Objective: The purpose of this study was to investigate the effect of the degree of sternal depression on the cardiac rotation of pectus excavatum as depicted with helical CT.

Materials And Methods: Sixty-three patients (53 boys, 10 girls; mean age, 9.7 +/- 7 years) with pectus excavatum who underwent helical chest CT and surgical correction were included in this study.

A rare case of right and left pulmonary artery dissections on 64-slice multidetector computed tomography.

Pulmonary artery dissection is a rare but life-threatening disease, which has mainly been diagnosed at postmortem examination rather than in living patients. Herein we report an unusual case of pulmonary artery dissection involving the right and left pulmonary arteries with Eisenmenger syndrome confirmed by multidetector computed tomography (CT) and echocardiography in a living patient. The CT findings of our case are presented, and the utility of multidetector CT in the evaluation of pulmonary artery dissection is discussed.

Crush thoracic trauma in the massive Sichuan earthquake: evaluation with multidetector CT of 215 cases.

Purpose: To determine the multidetector computed tomographic (CT) features of crush thoracic traumas resulting from the massive Sichuan earthquake.

Materials And Methods: This study was approved by the ethics committee of the medical school, and informed consent was waived. A retrospective review was undertaken of 215 multidetector chest CT scans of 112 male and 103 female patients who sustained crush thoracic injuries in the Sichuan earthquake at 2:28 pm Beijing time, May 12, 2008, and were rescued in the authors' hospital.

Myopericytoma involving the parotid gland as depicted on multidetector CT.

Myopericytoma is a newly proposed subgroup of perivascular tumors in the World Health Organization classification of soft tissue tumors. In this study, we report a case of a benign myopericytoma with detailed multidetector CT (MDCT) findings in the parotid gland, a location that has not been described for this type of tumor previously. The clinical presentation, imaging features, histopathological and immunohistochemical findings, and the differential diagnosis with other tumors in the parotid gland are described and reviewed.

Crush extremity fractures associated with the 2008 Sichuan earthquake: anatomic sites, numbers and statuses evaluated with digital radiography and multidetector computed tomography.

Objective: To investigate features of crush extremity fractures associated with massive earthquake on digital radiography (DR) and multidetector computed tomography (MDCT).

Materials And Methods: Six hundred and twenty-three consecutive patients with clinically confirmed crush extremity fractures arising from the 2008 Sichuan earthquake were enrolled into our study. Six hundred and eleven patients with suggested extremity fractures underwent DR, and 12 patients with possible knee fractures underwent MDCT.

Evaluation of gastric fundic and oesophageal varices by 64-row multidetector computed tomography before and after transjugular intrahepatic portosystemic shunt with concurrent left gastric vein embolization.

Objective: To determine the utility of 64-row multidetector computed tomography (MDCT) in assessing the changes of gastric fundic and oesophageal varices before and after transjugular intrahepatic portosystemic shunt (TIPS) with concurrent left gastric vein embolization.

Methods: Twenty-eight consecutive patients with gastric fundic and oesophageal varices resulted from posthepatitic cirrhosis, clinically confirmed with endoscopy, were enrolled into our study. All the patients underwent thoracicoabdominal triphasic enhancement scans with 64-row MDCT 2 weeks before TIPS along with embolizing left gastric vein, and 6 months after the therapy.