[Surveillance of epidemic factors of schistosomiasis in wetlands in Sichuan Province].

Objective: To investigate the epidemic factors of schistosomiasis in wetlands in Sichuan Province, so as to provide scientific evidence for the prevention and control of schistosomiasis in wetlands.

Methods: The artificial and natural wetlands were selected from Sichuan Province, and the relevant data regarding wetlands were collected. Routine snail survey, investigation on human morbidity due to schistosomiasis, snail diffusion experiments, questionnaire survey, determination of water infectivity and retrospective survey were conducted.

Assessment of small hepatocellular carcinoma: perfusion quantification and time-concentration curve evaluation using color-coded and quantitative digital subtraction angiography.

To explore the role of quantitative digital subtraction angiography (QDSA) in the diagnosis of small hepatocellular carcinoma (HCC).Between November 2015 and November 2017, all patients who underwent chemoembolization for HCC were retrospectively reviewed. Patients with tumors measuring more than 5 cm or evident post-processing imaging artifacts were excluded.

Contextual interference enhances motor learning through increased resting brain connectivity during memory consolidation.

Increasing contextual interference (CI) during practice benefits learning, making it a desirable difficulty. For example, interleaved practice (IP) of motor sequences is generally more difficult than repetitive practice (RP) during practice but leads to better learning. Here we investigated whether CI in practice modulated resting-state functional connectivity during consolidation.

Quantitative flow measurement after placing a flow diverter for a distal internal carotid artery aneurysm.

Objectives: To evaluate the differences in arterial flow after flow diverter placement using quantitative flow measurements based on digital subtraction angiography (DSA).

Methods: Between November 2013 and November 2015, all patients who had flow diverters placed for distal internal carotid artery (ICA) aneurysms were reviewed. Patients in whom the stent was placed across the ostia of the ophthalmic artery (OphA) and anterior choroidal artery (AChA) were enrolled.

Benefit of interleaved practice of motor skills is associated with changes in functional brain network topology that differ between younger and older adults.

Practicing tasks arranged in an interleaved manner generally leads to superior retention compared with practicing tasks repetitively, a phenomenon known as the contextual interference (CI) effect. We investigated the brain network of motor learning under CI, that is, the CI network, and how it was affected by aging. Sixteen younger and 16 older adults practiced motor sequences arranged in a repetitive or an interleaved order over 2 days, followed by a retention test on day 5 to evaluate learning.

[Retrospective investigation and analysis of endemic situation of schistosomiasis in hilly regions of Sichuan Province].

Objective: To explore the rules of the changes of schistosomiasis infection and Oncomelania snails in areas where schistosomiasis transmission was controlled or interrupted or rebounded after interruption.

Methods: Qingbaijiang District, Longquanyi District and Xide County were selected and investigated retrospectively to collect schistosomiasis epidemiological information 10 years before they reached the criterion of transmission control and the subsequent years until 2008. The database of retrospective investigation was established for analyzing the trends and rules of changes of snail status and human infection status.