[Photosynthetic characteristics of and in artificial grassland].

To explore the effect of monoculture and mixture sowing artificial grassland on the photosynthetic characteristics of and , we determined the diurnal variation of photosynthetic properties of and under different treatments. The results showed that the diurnal changes of net photosynthetic rate, blade temperature and transpiration rate of and showed 'unimodal type' in monoculture, the stomatal conductance of showed 'unimodal type', and the stomatal conductance and water use efficiency of showed 'bimodal type'. Under the mixed sowing treatment, the diurnal changes of net photosynthetic rate, blade temperature and transpiration rate of and showed 'unimodal type', the stomatal conductance and water use efficiency of showed 'unimodal type', and the stomatal conductance of showed 'bimodal type'.

Is there an impact of 18F-FDG PET/CT on the surveillance and clinical management of recurrent ovarian cancer? Research based on a large sample in a single PET/CT center.

Objectives: The aim of the study was to evaluate the use of F-fluorodeoxyglucose ((18)F-FDG) PET/computed tomography (CT) in the follow-up and clinical management of ovarian cancer patients after therapy.

Materials And Methods: A total of 152 ovarian cancer patients who had undergone therapy were evaluated. Clinical information, CA-125 levels, and traditional imaging findings were analyzed.

Can ¹⁸F-fluorodeoxyglucose positron emission tomography predict responses to neoadjuvant therapy in oesophageal cancer patients? A meta-analysis.

Objectives: Neoadjuvant therapy for the treatment of oesophageal cancer was introduced in an effort to improve prognosis. Response assessment is crucial for the treatment of patients with oesophageal cancer. Currently, ¹⁸F-fluorodeoxyglucose positron emission tomography (¹⁸F-FDG PET) seems to be the best available tool to assess neoadjuvant therapy response in patients with oesophageal cancer.

Optimizing delayed scan time for FDG PET: comparison of the early and late delayed scan.

Objectives: Although dual-time-point scans have been widely used to improve the diagnostic efficacy of FDG PET in differentiating between malignant and benign lesions, no optimized delayed scan time-point has yet been recommended in clinical practice. Our study aimed to explore the most appropriate time for a delayed scan by comparing early and late delayed scans.

Methods: Eighty patients with suspected malignancy were given a three-phase (64 min, 110 min, 233 min after FDG injection) PET/CT scan.