Ultrasound Radiomics Effective for Preoperative Identification of True and Pseudo Gallbladder Polyps Based on Spatial and Morphological Features.

To explore the value of ultrasound radiomics in the preoperative identification of true and pseudo gallbladder polyps and to evaluate the associated diagnostic accuracy. Totally, 99 pathologically proven gallbladder polyps in 96 patients were enrolled, including 58 cholesterol polyps (55 patients) and 41 gallbladder tubular adenomas (41 patients). Features on preoperative ultrasound images, including spatial and morphological features, were acquired for each lesion.

Imaging and Contrast-enhanced Ultrasound features of duodenal neuroendocrine tumor: A case report.

Duodenal neuroendocrine tumors are rare neoplasms arising from endocrine cells. Here we present a case of 32-year-old woman with Duodenal neuroendocrine tumors, report the imaging and contrast-enhanced Ultrasound (CEUS) features and review previous literatures of neuroendocrine tumors, which may be valuable for the differential diagnosis of duodenal neoplasms.

The correlation of pulmonary arterial hypertension with late recurrence of paroxysmal atrial fibrillation after catheter ablation.

Background: Paroxysmal atrial fibrillation (PAF) is one of the most common clinical arrhythmias. Although radiofrequency catheter ablation (RFCA) for the treatment of atrial fibrillation has continuously matured and developed in recent years, some patients treated with RFCA continued to have atrial fibrillation recurrence, and the recurrence rate was high. Determining indicators to predict the recurrence of PAF after RFCA is significantly important for improving the surgical success rate and guiding clinical work.

Association of VEGFR-2 Gene Polymorphisms With Clopidogrel Resistance in Patients With Coronary Heart Disease.

Vascular endothelial growth factor receptor 2 (VEGFR-2) plays a central role in atherogenesis. We investigated the correlation between VEGFR-2 polymorphisms and the risk of clopidogrel resistance (CR) in patients with coronary heart disease (CHD). The study involved 275 patients with CHD undergoing percutaneous coronary intervention and on antiplatelet clopidogrel therapy.

[Real-time CT of upper airway in patients with obstructive sleep apnea hypopnea syndrome].

Objective: To explore the technology and clinical application of real-time CT scan in obstructive sleep apnea hypopnea syndrome during awake and drug induced sleep state.

Methods: Sixty-two patients with OSAHS diagnosed by polysomnography underwent 256 layer spiral CT scan during awake and drug-induced sleep apnea state, and multiplanar reconstruction and volume rendering of computed tomography images were performed. To observe the dynamic changes of upper airway and locate the sites of airway obstruction in patients with OSAHS, the minimum section area, diameter and volume of pharynx cavity were measured on reconstructed 3-dimensional computed tomography.

Radiological diagnosis of duodenocaval fistula: a case report and literature review.

Duodenocaval fistula (DCF) is an uncommon but lethal clinical entity. The high mortality has been attributed to the difficulty of diagnosis before attempts at definitive therapy. In this case report, we describe a patient with a series of computed tomography (CT) examinations over a 2-mo period in hospital.

[Study on the overall anatomical features and clinical value of lumbar nerve root, plexus and branches in CT reconstruction].

Objective: To identify the overall anatomical characteristics and the clinical value of the lumbar nerves under CT multiplanar reconstruction.

Methods: Fifty normal subjects and 30 patients with LN diseases (51 sides) were selected, including 10 patients with lumber intervertebral disk hernia, eight patients with spinal stenosis, 5 patients with spondylolisthesis, 1 patient with tethered cord syndrome, 1 patient with lumbar scoliosis, and 5 patients with spinal trauma The 16-slice helical CT (Light Speed, GE Company) was used for scanning the lumbar vertebra with multiplanar reconstruction in Workstation (ADW4.1) with UNIX System in DICOM format.

[Value of multiplanar reconstruction of lumbar nerve roots on the same level by high resolution computed tomography in diagnosis of lumbar disc herniation and/or bulge].

Objective: To explore value of multiplanar reconstruction of lumbar nerve roots on the same level by high resolution computed tomography (HRCT) in diagnosis of lumbar disc herniation and/or bulge (LDHB).

Methods: Thirty-one patients with manifestations of typical nerve root compression, such as lumbago and tenderness of percussion pain at the corresponding sites were scanned with 16-slice spiral CT and multiplanar reconstruction of lumbar nerve roots on the same level with the workshop ADW4.150, and were diagnosed as with LDHB with 50 segments.

[Percutaneous lung cancer cryotherapy guided by computer tomography].

Objective: To document the feasibility, safety and efficacy of percutaneous lung cancer cryotherapy (PLC) guided by Computer Tomography (CT).

Methods: Two hundred and thirty seven patients with lung cancer underwent CT-guided PLC from August, 2001 to April, 2003. CT-visualized immediate ice formation beyond tumor margins was compared to tumor size and location.