Thoracic Imaging on the Internet

Nov 3, 2002

Improve your knowledge of chest imaging with our new online thoracic radiology textbook, Thoracic Imaging on the Internet, by Scott C. Williams, M.D.

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At RSNA 2025, thoracic radiologists debated using autonomous AI for chest radiograph interpretation. They also fielded many audience questions and comments as well.
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What causes lung cancers to be missed on screening?
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Incomplete smoking history documentation appears to be one of the reasons.
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Early PET/CT feasible in women with suspected breast cancer
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Early imaging is not only more patient-friendly but also has the potential to simplify clinical workflows.
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Study highlights risk-based breast cancer screening; ACR responds
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A study showing the potential benefits of risk-based breast cancer screening has drawn criticism from the ACR.
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Is AI ready for autonomous reads of chest x-rays?
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A debate at RSNA 2025 reviewed the current use of autonomous AI for chest radiographs and assessed future opportunities.
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At RSNA 2025, thoracic radiologists debated using autonomous AI for chest radiograph interpretation. They also fielded many audience questions and comments as well.
Patients support AI in radiology, but not as a standalone reader
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A majority of survey respondents would not agree to AI as a sole reader.
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Lung cancer rates low on chest CT after incidental neck imaging findings
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The results could indicate that follow-up chest CT may not be necessary in this situation.
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Predicting when athletes can safely return to play after an injury is key.
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The radiotracer detected more lesions in men with metastatic disease than F-18 piflufolastat.
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Scans in a 73-year-old man with biochemically recurrent prostate cancer (prostate-specific antigen level of 0.5 ng/mL) who underwent PET/CT with 9.4 mCi of F-18 piflufolastat and a second PET/CT examination with 8.1 mCi of copper 61-NODAGA (1,4,7-triazacyclononane,1-glutaric acid-4,7-acetic acid)–prostate-specific membrane antigen for imaging and therapy (Cu-61 PSMA I&T) 24 days apart, with no intervening therapy. Maximum intensity projection (MIP) images obtained (A) 1 hour after F-18 piflufolastat administration and (B) 1, (C) 2, and (D) 4 hours after Cu-61 PSMA I&T administration are shown. Physiologic uptake is seen in the lacrimal glands, salivary glands, liver, spleen, kidneys, ureters, and bladder. Pathologic uptake in pelvic nodal metastases is labeled with arrows. The F-18 piflufolastat PET/CT MIP image reveals two avid pelvic nodal metastases (arrows). Cu-61 PSMA I&T PET/CT scans demonstrate three avid pelvic nodal metastases on 1-hour and 2-hour images (arrows); five avid pelvic nodal metastases were suspected on the 4-hour image (arrows).
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Breast radiologists achieved moderate to substantial interreader agreement for classifying nonmass lesions on ultrasound.
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Images depict a 50-year-old woman with a lesion detected during screening ultrasound. (A) Transverse and (B) longitudinal images reveal a 0.5-cm hypoechoic lesion (arrow) in the left breast. (C) Transverse color Doppler ultrasound image does not show an increase in vascularity. Two readers classified the lesion as a mass, whereas two others categorized it as a nonmass lesion, leading to its designation as a controversial nonmass lesion. Ultrasound-guided core needle biopsy and subsequent pathologic examination confirmed a nonproliferative breast change.
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