ISCT 2015 Event Page (bottom article - obsolete)

May 26, 2015

This is the bottom article on the ISCT Event Page.

An example of a typical BgRT plan: A) PET scan on diagnostic PET/CT and B) X1 PET-Linac for patient #15 with a PET avid rib metastasis with GTV size= 3.1 cc, PTV = GTV + 5mm, BTZ (biological tracking zone) = PTV + 5 mm, AC = 14.33 kBq/mL and NTS = 21.04. Red, magenta, and green contours represent GTV, PTV, and BTZ. C) Dose distribution and D) bounded-DVH of a BgRT plan are displayed for the same patient. The bounded Dose-Volume Histogram (DVH) models variations in BgRT delivery, encompassing fluctuation in target background signal variation, target localization and dose delivery uncertainties.

Radiation oncologists put RefleXion’s X1 system to the test

September 19, 2025

Patient Physical Exam

Is it time to ditch physical exams before ultrasound?

September 19, 2025

AAPM critiques study regarding CT before pregnancy

September 19, 2025

Mammography acquisition parameters affect both AI, radiologist reads

September 18, 2025

Radiation oncologists put RefleXion’s X1 system to the test

A pilot study demonstrates the potential feasibility of using RefleXion's X1 unit in patients with prostate cancer.

September 19, 2025

An example of a typical BgRT plan: A) PET scan on diagnostic PET/CT and B) X1 PET-Linac for patient #15 with a PET avid rib metastasis with GTV size= 3.1 cc, PTV = GTV + 5mm, BTZ (biological tracking zone) = PTV + 5 mm, AC = 14.33 kBq/mL and NTS = 21.04. Red, magenta, and green contours represent GTV, PTV, and BTZ. C) Dose distribution and D) bounded-DVH of a BgRT plan are displayed for the same patient. The bounded Dose-Volume Histogram (DVH) models variations in BgRT delivery, encompassing fluctuation in target background signal variation, target localization and dose delivery uncertainties.

Is it time to ditch physical exams before ultrasound?

By Amerigo Allegretto

Physical exams are omitted in over half of patient cases, and it seems diagnostic outcomes are unaffected.

September 19, 2025

Patient Physical Exam

AAPM critiques study regarding CT before pregnancy

By Kate Madden Yee

The AAPM sought to put the research into perspective, noting that "comorbidities, not radiation dose, likely explain study results."

September 19, 2025

Mammography acquisition parameters affect both AI, radiologist reads

By Kate Madden Yee

The findings could help clinicians better develop "effective strategies for the clinical integration of AI," researchers noted.

September 18, 2025

What prompts radiology department cancellations of imaging orders?

By Kate Madden Yee

Although the percentage of radiology cancellations of imaging orders is low, these cancellations are influenced by particular factors.

September 18, 2025

AI model detects achalasia on chest x-rays

Currently, few noninvasive tests are available for diagnosing the swallowing condition.

September 18, 2025

Saliency maps using Grad-CAM++ (E and H) show the model’s point of interest in chest radiographs (C and F) of patients with achalasia. The model’s point of interest is highlighted with red, yellow, and green. In both the upper and lower panels (E and H), the point of interest is located in a region around the upper esophagus that corresponds to an air esophagogram and/or air-fluid level in the esophagus in the barium esophagogram (D and G).

Imaging linked to blood cancers in children and adolescents

Researchers suggest that medical imaging may be associated with 10.1% of hematologic cancers.

September 18, 2025

Echogenic rind on breast ultrasound holds diagnostic significance

By Amerigo Allegretto

An echogenic rind on breast ultrasound could spell malignancy for suspicious lesions.

September 17, 2025

Diagnostic transverse ultrasound image of the left breast in a 64-year-old woman shows irregular hypoechoic nonparallel mass with indistinct margins corresponding to palpable finding, assessed as BI-RADS category 4. Both readers assessed mass as having associated echogenic rind with complete circumferential extent (arrowheads). Ultrasound-guided biopsy of mass yielded diagnosis of invasive ductal carcinoma (intermediate grade, luminal A molecular subtype, no lymphovascular invasion).

HPI: Office-based imaging studies are often repeated when read by NPPs

By Kate Madden Yee

The findings highlight the benefit of specialized training when it comes to imaging exam interpretation.

September 17, 2025

Sonography experts outline CEUS' advantages, opportunities

By Amerigo Allegretto

While CEUS growth in clinical use has been modest, sonography experts say there is reason for optimism for the technique.

September 17, 2025

Ultrasound Transducer3 400

AI model uses mammograms to predict cardiovascular risk

By Amerigo Allegretto

The researchers report that the algorithm is on par with traditional cardiovascular risk equations.

September 17, 2025

Heart Artificial Intelligence Ai 400

Radiation organizations issue guidance on postmastectomy radiation therapy

By Maryam Payne

ASTRO, ASCO, and SSO have jointly issued updated guidelines on postmastectomy radiation therapy.

September 16, 2025

Radiation Therapy Suite

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