Dynamic changes of renal cortical blood perfusion before and after percutaneous transluminal renal artery stenting in patients with severe atherosclerotic renal artery stenosis.

Background: This study aims to observe the dynamic changes of renal artery (RA) disease and cortical blood perfusion (CBP) evaluated by contrast-enhanced ultrasound (CEUS) after percutaneous transluminal renal artery stenting (PTRAS) in patients with severe atherosclerotic renal artery stenosis (ARAS) and to analyze the relationship between CBP and prognosis.

Methods: This was a single-center retrospective cohort study. A total of 98 patients with unilateral severe ARAS after successful PTRAS in Beijing Hospital from September 2017 to September 2020 were included.

Development and Validation of a Prognostic Nomogram for Prognosis in Patients With Renal Artery Stenosis.

Background And Objective: Renal artery stenosis (RAS) is associated with an increased risk of renal function deterioration (RFD). Our previous study showed that renal cortical blood perfusion assessed by contrast-enhanced ultrasound (CEUS) was an important related factor for RFD in RAS patients. Based on several conventional related factors confirmed by previous studies, we aimed to establish and verify a CEUS+ scoring system to evaluate the risk of RFD at 1 year of follow-up in RAS patients.

Enhancing Performance of Breast Ultrasound in Opportunistic Screening Women by a Deep Learning-Based System: A Multicenter Prospective Study.

Purpose: To validate the feasibility of S-Detect, an ultrasound computer-aided diagnosis (CAD) system using deep learning, in enhancing the diagnostic performance of breast ultrasound (US) for patients with opportunistic screening-detected breast lesions.

Methods: Nine medical centers throughout China participated in this prospective study. Asymptomatic patients with US-detected breast masses were enrolled and received conventional US, S-Detect, and strain elastography subsequently.

Rationale and study design for one-stop assessment of renal artery stenosis and renal microvascular perfusion with contrast-enhanced ultrasound for patients with suspected renovascular hypertension.

Background: Renal artery stenosis (RAS) is always associated with abnormalities in renal microvascular perfusion (RMP). However, few imaging methods can simultaneously evaluate the degree of luminal stenosis and RMP. Thus, this study will aim to evaluate the feasibility of using contrast-enhanced ultrasound (CEUS) for assessing both RAS and RMP to achieve a one-stop assessment of patients with suspected renovascular hypertension.

[Comparative study of endorectal ultrasonography and magnetic resonance imaging in preoperative staging of rectal cancer].

Objective: To evaluate the diagnostic value of endorectal ultrasonography (ERUS) and magnetic resonance imaging (MRI) in preoperative staging of rectal carcinoma.

Methods: A total of 44 patients with biopsy proven rectal tumor underwent preoperative ERUS and MRI examinations. All patients were evaluated to determine the diagnostic accuracy of depth of transmural tumor invasion and lymph node metastases.

Growth and biochemical composition of filamentous microalgae Tribonema sp. as potential biofuel feedstock.

Filamentous oleaginous microalgae Tribonema minus have advantages in relatively easy harvesting and grazers resistance in mass cultivation due to its filaments in previous study. To evaluate whether the genus Tribonema is a valuable candidate for use in biofuel production, the morphology, growth, biochemical composition and fatty acid profile of six filamentous microalgae strains Tribonema sp. were investigated.

Special biochemical responses to nitrogen deprivation of filamentous oleaginous microalgae Tribonema sp.

Both filamentous microalgae Tribonema and unicellular microalgae Nanochloropsis are promising feedstock for biodiesel production. Nitrogen starvation increased lipid content in Nannochloropsis but decreased that in Tribonema. In this study, biochemical responses of Tribonema under different levels of nitrogen (0N, 0.

Differential diagnosis of isolated calf muscle vein thrombosis and gastrocnemius hematoma by high-frequency ultrasound.

Background: Differential diagnosis of isolated calf muscle vein thrombosis (ICMVT) and gastrocnemius hematoma is essential for early identification of deep vein thrombosis (DVT). This study aimed to investigate the diagnostic value of high-frequency color Doppler ultrasound for differential diagnosis of ICMVT and gastrocnemius hematoma.

Methods: A retrospective case series of 35 ICMVT (M:F, 21:14; mean age (64.

Integration process of biodiesel production from filamentous oleaginous microalgae Tribonema minus.

Biodiesel production from microalgae has been receiving considerable attention. Past studies mainly relied on tiny sized single-cell oleaginous microalgal species, the biodiesel based on filamentous oleaginous microalgae was rarely reported. Thus, integrated process of biodiesel production from filamentous oleaginous microalgal strain Tribonema minus was studied in this work.

Study of endorectal ultrasonography in the staging of rectal cancer.

Background: There is no consensus regarding the performance for endorectal ultrasonography (ERUS) at every stage of rectal cancer. Thus, the purpose of our study was to further assess the value of ERUS in the preoperative staging of rectal cancer.

Methods: A retrospective study was performed with 44 consecutive patients (mean age: (63.

[Assessment of synovitis in the knee of patients with newly-diagnosed rheumatoid arthritis using high frequency and color Doppler ultrasonography].

Objective: To investigate the value of high frequency and color Doppler ultrasonography in detection of synovitis and the intra-articular vascularization in the knee joint of patients with newly-diagnosed rheumatoid arthritis (RA).

Methods: Forty-one patients (30 women, 11 men) with newly-diagnosed RA were recruited to a cross sectional study (RA group). Forty-one age and gender-matched healthy volunteers were used as control group.

[The relationship between hyperlipidemia and lower limb arterial disease in elderly diabetes patients].

Objective: To evaluate the correlation between hyperlipidemia and lower limb arterial disease in elderly diabetic patients with color Doppler ultrasonography.

Methods: Two hundred and sixty elderly diabetic patients and 206 normal subjects were enrolled in the study. Doppler ultrasonographic manifestations of lower limb arterial disease, blood pressure and blood biochemistry parameters including fasting plasma glucose (FPG), postprandial plasma glucose (PPG), TC, TG, HLD-C, LDL-C, apoprotein B (apoB), very low density lipoprotein cholesterol (VLDL-C), apoprotein A1 (apoA1) and fibrinogen (Fb) were compared between the 2 groups.