Hamish Johnston

Nuclear Medicine
NEA: Medical isotope shortages could become commonplace
Supply shortages of molybdenum-99 could become commonplace over the next decade unless longer-term actions are taken, concludes a report from the Nuclear Energy Agency (NEA) of the Organization for Economic Cooperation and Development.
December 30, 2010
2010 12 30 13 10 03 818 Pw Isotopes 250
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ASTRO 2026
ASTRO: Radiosurgery may extend survival for SCLC with brain metastases
Patients receiving SRS lived almost 18 months after treatment.
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ASTRO 2026
Video from ASTRO: How is the RPT boom impacting radiation oncology?
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MRI
Cardiac MRI-derived metrics predict adverse cardiac disease outcomes
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CT
Bosniak predicts renal cancer with unfavorable histologic features
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ASTRO: Radiosurgery may extend survival for SCLC with brain metastases
By Erik L. Ridley
Patients receiving SRS lived almost 18 months after treatment.
September 29, 2026
ASTRO cancer care facility entrance sign with blue dimensional letters and purple planter with white and yellow flowers
Video from ASTRO: How is the RPT boom impacting radiation oncology?
By Will Morton
The boom in radiopharmaceutical therapy (RPT) driven by theranostics is having a significant impact on radiation oncology.
September 29, 2026
ASTRO cancer care organization sign with blue letters and lavender base decorated with white and yellow flowers
Cardiac MRI-derived metrics predict adverse cardiac disease outcomes
By Erik L. Ridley
Diastolic function markers from cardiac MRI yielded incremental value over clinical risk factors and traditional imaging markers.
September 29, 2026
Glowing red anatomical illustration of a human heart with visible coronary arteries and internal chambers on dark background
Bosniak predicts renal cancer with unfavorable histologic features
By Amerigo Allegretto
The 2019 version of the Bosniak risk classification system can predict cancer in cystic renal masses with unfavorable histology.
September 29, 2026
Four abdominal CT scan images with arrows indicating anatomical features for medical diagnosis
ASTRO: Radiosurgery reduces suicidal ideation in major depressive disorder
By Will Morton
Before treatment, 14 of the 20 patients (70%) reported suicidal thoughts, while after treatment, one patient (5%) did.
September 29, 2026
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ASTRO: Psychotherapy after cancer diagnosis tied to lower mortality
By Will Morton
Patients with depression had an 11% higher risk of cancer-specific mortality compared with those without it.
September 28, 2026
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EHR data may miss women eligible for lung cancer screening
By Amerigo Allegretto
Smoking history may be underestimated in over one-third of lung cancer screening-eligible women identified by self-reporting.
September 28, 2026
Middle-aged woman in light blue shirt sitting on gray couch with hand on chest
ASTRO: 10-year outcomes support hypofractionated radiotherapy in breast cancer
By Will Morton
While hypofractionated radiotherapy is well established for whole-breast irradiation after breast-conserving surgery, there is little long-term data on its use post-mastectomy.
September 28, 2026
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ASTRO: Few patients adhere to long-term hormone therapy after lumpectomy
By Erik L. Ridley
The results provide real-world context for treatment approaches that consider omitting radiation therapy after lumpectomy.
September 28, 2026
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ASTRO: Fractionated radiosurgery lessens brain metastases recurrence
By Amerigo Allegretto
Focused radiation therapy over three to five sessions after surgery for a large brain metastasis reduced recurrence risk.
September 28, 2026
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ASTRO: Navigator program improves access for African American breast cancer patients
By Will Morton
Afua Ofori-Darko, a medical student at Case Western Reserve, presented early phase I results of a structured patient navigation program.
September 28, 2026
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ASTRO: Low-dose RT tied to fewer knee replacements
By Amerigo Allegretto
Patients who underwent low-dose RT had longer symptom relief, less joint deterioration, and lower disability risk.
September 27, 2026
Anatomical illustration of knee joint showing muscles, bones, and ligaments with transparent overlay visualization
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