Radiology at Parnassus – Main Hospital

Fluoroethyltyrosine for the Evaluation of Intracranial Neoplasm

The maximum TBR (TBRmax) will be calculated by dividing the SUVmean of the 1.6 centimeter (cm) diameter circular region of interest (ROI) by the mean standardized uptake value (SUVmean) of background normal tissue.

Recruiting

Imaging Study of [89Zr]DFO-YS5 for Detecting CD46 Positive Malignancy in Multiple Myeloma

Defined as the rate of lesions with positive uptake when compared against 18F-fluorodeoxyglucose (FDG) PET/computed tomography (CT) positivity. Sensitivity estimated based on lesion level without considering the location of the le...

Recruiting

First-in-Human Evaluation of an Astrocytic Glutamate Transporter (EAAT2) PET Tracer in Dementia

Each study participant will undergo a physical examination, vital signs, and ECGs prior to and after the scan and will also be monitored during the scan for adverse events. Additionally, a follow-up with the subject will be conduc...

Recruiting

Magnetic Resonance (MR) Imaging With Hyperpolarized Bicarbonate (13C) to Measure Tissue pH in P...

The feasibility of a study will be determined by the ability to generate adequate signal to noise ratio to measure acidity (pH) in tumor or adjacent healthy tissue. This study will be considered successful if the 13C bicarbonate (...

Recruiting

PET Imaging Study of 89Zr-DFO-YS5 in Men With Prostate Cancer

For Cohort A, the optimal time point will be selected based on optimal maximun Standardized uptake value (SUVmax) of metastatic lesions, and ratio of SUVmax to blood pool. Due to the limited samples, the investigator will use all ...

Recruiting

Feasibility of Acquiring Hyperpolarized Imaging in Patients With Meningioma

All participants who are enrolled in the study and receive any amount of hyperpolarized 13C pyruvate will be included in the primary outcome analysis. The proportion of participants who complete hyperpolarized 13C pyruvate MR imag...

Recruiting

Focused Ultrasound to Promote Immune Responses for Undifferentiated Pleomorphic Sarcoma

Proportion of participants with device-related adverse events will be determined by evaluating the incidence and severity of any device-related complications from the treatment day visit through the time of surgery or last post-tr...

Recruiting

Comparative Effectiveness of MRgFUS Versus CTgRFA for Osteoid Osteomas

1 month after treatment, worst VAS score over the last 24 hours will be assessed

Recruiting

Effect of Rapid Rollover on Pneumothorax After CT-Guided Lung Biopsy

New or enlarging pneumothorax (from intraprocedural CT) which is detectable on post biopsy radiograph. The size of the pneumothorax will be measured in terms of the distance between visceral and parietal pleura. The severity of pn...

Recruiting

[18F]FAraG PET Imaging for Analysis of Biodistribution in Cancer Patients Expected to Undergo I...

Whole-body [18F]F-AraG PET scan will be performed after intravenous injection of the PET tracer.consecutive time points the day of the intravenous injection of the PET tracer.

Recruiting