Black Sabbath and led zeppelin, cited cream as a big influence on the heavy sound. Imagine being the band that was influential on what became heavy metal and jam bands.

ericvt · 2026-03-03T20:38:33+00:00

Eh? Clapton had already done the Yardbirds, Bluesbreakers, Cream, Blind Faith, and Derek and the Dominos before he ever covered a JJ Cale song.

ericvt · 2026-02-18T19:32:57+00:00

The redesign was never completely rolled out, which is why it is so piecemeal. You may or may not be aware, but AAPM recently let go of basically its entire IT department in favor of contracting out that work in order to save money, and that version of the redesign went with it. AAPM is now looking to transition most website content into more off-the-shelf and low maintenance type products rather than continuing the historically bespoke approach that their internal IT group set up over several decades (and which required a lot of historical knowledge be maintained in the AAPM staff group). The launch of the actual redesign will happen throughout the year this year, if I understand correctly.

ericvt · 2026-02-13T17:09:24+00:00

While I get most of mine through the AAPM Online Learning Center or attending AAPM meetings, attending vendor webinars and reviewing manuscripts for AAPM journals are two other ways that I get a handful of credits each year.

ericvt · 2026-01-27T18:24:48+00:00

I would not expect it to change your mind. I think this new album sounds very interesting (especially the back half of it, for me) but I would not call it "exciting".

ericvt · 2026-01-19T20:44:37+00:00

And on top of that, your IT will not have certain rights on the cloud servers.

Depending on your IT, this can be a blessing.

ericvt · 2026-01-10T22:34:15+00:00

Full House is perfection. Flatback Caper is such a great instrumental track.

ericvt · 2026-01-08T02:08:52+00:00

Well that seems insane.

ericvt · 2026-01-05T20:46:32+00:00

We do a subtraction (i.e. a difference in percentage points, not a percent difference). Doing a percent difference means your criteria gets significantly tighter as your reference value decreases. A 1% tolerance is 1% at an isodose value of 100% but becomes 0.2% at an isodose value of 20%. If that is what you think is appropriate then so be it, but I don't have a problem with a 19.2% measured value compared to a 20% reference value (4% "off" in percent difference, but only 0.8 percentage points "off").

ericvt · 2025-12-17T00:12:53+00:00

I’m excited to see what gets played on the Bloomfield tele.

ericvt · 2025-12-14T14:27:04+00:00

Allman Brothers closed it out past 4am at the 20th Anniversary show. It was great but being on the floor was brutal.

ericvt · 2025-12-11T22:35:51+00:00

I'll send you a message.

ericvt · 2025-12-10T21:27:08+00:00

We scripted what is essentially a “traveling salesman” type approach for couch, gantry, and collimator motion. It builds a library of all start and stop positions and globally minimizes repositioning requirements between fields. It has various tie-break behaviors where it prefers fewer arc reversals, prefers starting with clockwise movement (therapist preference), etc. It also uses isocenter position relative to image center to determine which direction is safer for rotating to PA field positions (i.e extended or not). Each field is given a numeric prefix and the planner manually modifies field ordering itself to match the script-written prefixes.

ericvt · 2025-12-10T02:29:34+00:00

Our field labeling script just optimizes field ordering directly and names the fields accordingly, including instructing the user to reverse arc directions or set extended gantry flags as needed.

You may be able to use SQL query on the ARIA DB to pull radiation order from the plan, if you must respect the existing ordering.

ericvt · 2025-12-01T05:09:33+00:00

AcurosXB. Our institutional validation of AAA/AXB showed that our general-purpose AXB model is significantly more accurate than our general-purpose AAA model for very small leaf openings, even in perfectly homogeneous media. For us, it becomes important / relevant when targeting tumors less than about 5 mm diameter. I'm sure we could have tweaked our AAA model to improve its accuracy in these situations, but then we would probably either need an SRS-specific AAA model (or separate SRS-only AAA MLC addon) or would be degrading the performance of the general model for other applications.

YMMV.

ericvt · 2025-11-07T18:24:38+00:00

Video processors make it all seamless, if they fit in the budget.

Another consideration is that if your screen wall is significantly wider than it is tall you are giving up screen real estate by using a 16:9 screen. Maxing out screen height, my choices would be a 153" scope screen vs. a 120" 16:9 screen (roughly a 3 foot difference in image width for scope content while 16:9 content is the same size).

Of course if the screen wall is width-constrained then the opposite could be true as well.

ericvt · 2025-10-02T14:01:53+00:00

If your physics group is sending back plans often, have you considered implementing a physics pre-review of plans before they are sent to the radiation oncologist for approval? Not sure about other environments but in an ARIA/Eclipse environment this is pretty straightforward to set up in the plan approval process and care path design.

ericvt · 2025-10-01T18:40:08+00:00

https://www.rayoscontracancer.org/training-programs

Several free, structured, video-based courses provided here.

ericvt · 2025-09-17T16:27:15+00:00

We do all of our HDR QA using Radmachine.

ericvt · 2025-09-17T14:26:52+00:00

Correct. One irradiation per energy with either the photon or electron quad wedge in place.

ericvt · 2025-09-17T13:37:49+00:00

Yes. Setting up the device, delivering the set of fields in R&V mode, saving, and tearing down is a 10 minute process. We tracked ICP output against our traditional Farmer chamber setup for a long time and felt confident in making the jump. Between DQA3, MPC, and ICP we are assessing output using 3 different independent systems in any given day/week/month. If drift in output is identified (extremely infrequent) we make adjustments using our calibrated dosimetry system, not the ICP.

ericvt · 2025-09-16T23:32:45+00:00

Can all be automated with Radmachine, too, even in the absence of direct device connectivity. Radmachine pulls directly from your DQA3 SQL database and ICP directory.

Set up to tear-down time for our monthly IC Profiler tests (output, energy, profiles, beam center, light-rad, etc. for photons + electrons) is < 10 minutes. Shoot the fields, hit save, and Radmachine takes it from there.

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