[Quadruple negative SARS-CoV-2-PCR: still COVID-19 pneumonia!].

Medical History And Clinical Findings:  A 78-year-old man fell ill with weakness, coughing and fever 19 days after a cruise in early April 2020 and was admitted 4 days later with increasing shortness of breath.

Examination And Diagnosis:  On admission, the patient had subfebrile temperatures, exercise dyspnea, and right-basal rales. CRP was moderately elevated and oxygen saturation was slightly reduced.

Large-sized hepatocellular carcinoma (HCC): a neoadjuvant treatment protocol with repetitive transarterial chemoembolization (TACE) before percutaneous MR-guided laser-induced thermotherapy (LITT).

This study aims to evaluate the efficacy and safety of a neoadjuvant treatment protocol with repeated transarterial chemoembolization (TACE) before MR-guided laser-induced thermotherapy (LITT) for large-sized hepatocellular carcinomas (HCC). Repeated TACE (mean, 3.5 treatments per patient) was performed in 48 patients with neoadjuvant intention (the largest lesion was between 50 and 80 mm in diameter, and there were no more than five lesions).

Quantitative cartilage volume measurement using MRI: comparison of different evaluation techniques.

This study was aimed to investigate the accuracy and time saving of MRI Argus application in the assessment of cartilage volume in osteoarthritic knees. Twelve knees of patients suffering from osteoarthritis were scanned with a 1.5 T MRI using a 3D gradient echo sequence with selective water excitation.

Breast cancer metastases in liver: laser-induced interstitial thermotherapy--local tumor control rate and survival data.

Purpose: To evaluate the local tumor control rate and survival data for magnetic resonance (MR) imaging-guided laser ablation of breast cancer liver metastases by using laser-induced interstitial thermotherapy (LITT).

Materials And Methods: MR-guided LITT was performed in 232 female patients with 578 liver metastases from breast cancer. Survival rates were calculated with the Kaplan-Meier method.

Colorectal carcinoma metastases in liver: laser-induced interstitial thermotherapy--local tumor control rate and survival data.

Purpose: To evaluate the local tumor control and survival data for magnetic resonance (MR) imaging-guided laser-induced interstitial thermotherapy (LITT) of colorectal liver metastases.

Materials And Methods: MR imaging-guided LITT was performed in 603 patients (mean age, 61.2 years) with 1,801 liver metastases of colorectal cancer.

Liver metastases: neoadjuvant downsizing with transarterial chemoembolization before laser-induced thermotherapy.

Purpose: To evaluate a treatment protocol with repeated transarterial chemoembolization (TACE) before laser-induced thermotherapy (LITT) in patients with unresectable liver metastases that are too large for LITT alone.

Materials And Methods: One hundred sixty-two patients who had unresectable liver metastases, with the largest lesion as large as 80 mm in diameter, and no more than four lesions were treated with repeated TACE between March 1999 and December 2001. TACE was performed with a maximum of 10 mg/m2 mitomycin for chemotherapy and a maximum of 15 mL/m2 of iodized oil and microspheres for vessel occlusion.

MR-guided laser-induced thermotherapy with a cooled power laser system: a case report of a patient with a recurrent carcinoid metastasis in the breast.

We report a case of a 52-year-old woman with a palpable recurrent metastasis of a neuroendocrine carcinoma to the upper outer quadrant of the right breast. For the treatment of this lesion, MR-guided laser-induced thermotherapy was performed with a cooled power laser system (Nd:YAG-Laser). An open 0.

Malignant liver tumors treated with MR imaging-guided laser-induced thermotherapy: experience with complications in 899 patients (2,520 lesions).

Purpose: To evaluate the complications from laser-induced thermotherapy (LITT) of malignant liver tumors and demonstrate that LITT is safe as an outpatient procedure.

Materials And Methods: During 8 years, 899 patients with malignant liver tumors were treated with magnetic resonance (MR) imaging-guided LITT. A total of 2,132 LITT procedures were performed to treat 2,520 lesions.

Magnetic resonance (MR)-guided percutaneous laser-induced interstitial thermotherapy (LITT) for malignant liver tumors.

The liver has a central role in human metabolism and represents one of the organ systems most often affected, especially by tumor diseases. The group of colorectal carcinomas metastatically almost exclusively attacks this organ, which, according to studies by Weiss and colleagues, can be attributed to venous drainage of the intestines through the portal vein. A large number of primary tumors often cause liver metastases as well as bone, lung, and brain metastases.

Superparamagnetic iron oxide-enhanced MR imaging of head and neck lymph nodes.

Purpose: To compare findings on superparamagnetic iron oxide (SPIO)-enhanced magnetic resonance (MR) images of the head and neck with those from resected lymph node specimens and to determine the effect of such imaging on surgical planning in patients with histopathologically proved squamous cell carcinoma of the head and neck.

Materials And Methods: Thirty patients underwent MR imaging with nonenhanced and SPIO-enhanced (2.6 mg Fe/kg intravenously) T1-weighted (500/15 [repetition time msec/echo time msec]) and T2-weighted (1,900/80) spin-echo and T2-weighted gradient-echo (GRE) (500/15, 15 degrees flip angle) sequences.