Active clinical trials for "Neoplasm Metastasis"

The purpose of this study is to correlate the MRI CT and PET appearances of colorectal liver metastases to pathologic appearance ot better understand the accuracy of imaging to determine tumor size.

secondary spontaneous pneumothorax patients will be enrolled ,all of them will receive PRP with different doses and schedules

This clinical trial studies the different types of investigational imaging techniques called sequences during magnetic resonance imaging (MRI) of the head before and after radiation therapy in patients with cancer that has spread to the brain (intracranial metastases). This clinical trial also compares these new techniques with standard MRI imaging to see if sequences provide better images. Diagnostic procedures, such as MRI, may help find and diagnose solid organ cancer and find out how far the disease has spread.

The need of radiosurgery is controversial for asymptomatic oligo brain metastasis for non small cell lung cancer (NSCLC). Therefore, the investigators do a randomized study comparing overall survival between two groups with or without radiosurgery for asymptomatic oligo brain metastasis before palliative chemotherapy for NSCLC.

Patients are invited to participate in a research study of liver perfusion (how blood flows to the liver over time). Researchers hope to learn whether perfusion characteristics of liver metastases may be predictive of response to treatment and whether liver perfusion characteristics can be used to follow response to treatment. Patients were selected as a possible participant in this study because they are identified as having liver metastases

The purpose of this study is to prospectively analyze the incidence of occult lateral neck metastasis (LNM) and to elucidate the factors that predict LNM in papillary thyroid carcinoma (PTC) with central neck metastasis (CNM) by performing prophylactic selective lateral neck dissection (SND).

The prognosis of NSCLC patients with asymptomatic brain metastasis, who are not treated with SRS or WBRT has not been fully investigated yet. This randomized phase III trial is conducted to determine the exact role of SRS in NSCLC patients with asymptomatic oligo brain metastases whether early treatment with SRS would improve survival even in patients with asymptomatic brain metastasis.

The objective of the SIM trial is to investigate whether using the Surefire Infusion System during holmium-166 radioembolization increases the posttreatment tumor to non-tumor activity concentration ratio, compared with using a standard end-hole microcatheter.

Some breast cancer cells make a protein called Human Epidermal Growth factor receptor 2 (HER2). Patients with HER2 positive (HER2+) breast cancer receive medicine that attacks HER2, which helps these patients live longer. Some HER2 negative (HER2-) breast cancer patients also benefit from medicines that attack HER2, but we do not know why or which patients will benefit. This study uses a new imaging method, HER2-targeted PET/CT, to identify patients that may benefit from medicines that attack HER2. This is experimental.

Hypothesis: Use of contrast ultrasound showed interesting results, which can increase ultrasonography sensitivity performed during surgery in the evaluation of operable liver metastases. This study is a two-stage phase II multicenter study (Simon's two-stage).