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RADIOLOGY CALCULATORS

Scoring and reporting system calculators and other radiology resources and
educational materials


Menu
 * Abdominal imaging
   * Acute pancreatitis
     * CT severity index (CTSI) calculator for acute pancreatitis (modified)
     * CT severity index (CTSI) calculator for acute pancreatitis (original)
   * Adrenal washout calculator (CT)
   * Liver steatosis
     * Liver steatosis grading (ultrasound)
     * Liver steatosis calculator (CT)
     * Liver steatosis calculator (MRI)
   * Inflammatory bowel disease
     * Clermont score calculator of ileocolonic Crohn’s disease activity (MRI)
     * Limberg score calculator (inflammatory bowel disease severity) –
       ultrasound
     * Segmental Magnetic Resonance Index of Activity (MaRIA) score calculator
       of ileocolonic Crohn’s disease activity (MRI)
     * Simplified Magnetic Resonance Index of Activity (MARIAs) calculator for
       Crohn’s Disease
     * Global MaRIA index calculator of ileocolonic Crohn’s disease activity
     * Modifed Van Assche index calculator for perianal Crohn disease activity
       (MRI)
     * Van Assche index calculator for perianal Crohn disease activity (MRI)
   * Organ volume calculators
     * Kidney volume calculator (ultrasound)
     * Liver volume calculator (CT/MRI)
     * Prostate volume and PSA density calculator
     * Spleen volume calculator (CT/MRI)
     * Spleen volume calculator (US)
     * Urinary bladder volume calculator (ultrasound)
 * Chest imaging
   * COVID-19 CT severity index calculator
   * Fleischner Society guidelines
     * Fleischner Society pulmonary nodule recommendation calculator
       (diameter-based, 2017 version)
     * Fleischner Society pulmonary nodule recommendation calculator
       (volume-based, 2017 version)
   * Volume doubling time
     * Volume doubling time (VDT) calculator for pulmonary nodules
       (volume-based)
     * Volume doubling time (VDT) calculator for pulmonary nodules
       (diameter-based)
   * Lung nodule volume calculator (spherical formula)
   * Lung-RADS®
     * Lung-RADS® calculator for pulmonary nodules on CT (diameter-based)
     * Lung-RADS® calculator for pulmonary nodules on CT (volume-based)
 * Neuroradiology and H&N imaging
   * Carotid stenosis
     * Carotid artery stenosis (NASCET and ECST) calculator
     * Society of Radiologists in Ultrasound (SRU) consensus criteria calculator
       for assessing carotid stenosis on ultrasound
     * Sonographic NASCET index
     * ASUM guideline calculator for carotid artery stenosis on ultrasound
   * Chronic rhinosinusitis
     * Lund-Mackay score calculator for chronic rhinosinusitis
     * Modified Lund-Mackay (Zinreich) score calculator for chronic
       rhinosinusitis
   * Dementia imaging
     * Global cortical atrophy (Pasquier) scale calculator
     * Medial temporal atrophy score (Scheltens’ scale) calculator
   * Magnetic resonance parkinsonism index (MRPI and MRPI 2.0)
   * Rotterdam score of traumatic brain injury (CT)
   * Spetzler-Martin grade calculator or intracranial AV malformations
   * Stroke CT calculator (ASPECTS, CTA-SI-ASPECTS, pc-ASPECTS, CTA collateral
     scores)
   * Zurich pituitary score calculator for pituitary adenomas (CT/MRI)
 * Oncologic imaging
   * Choi response criteria calculator
   * PI-RADS® calculator
   * RECIST 1.1 calculator
 * Thyroid ultrasound
   * ACR-TI-RADS™ calculator for thyroid ultrasound
   * EU-TIRADS calculator for thyroid ultrasound
   * K-TIRADS calculator for thyroid ultrasound
   * McGill thyroid nodule score calculator
   * Thyroid volume calculator
 * Volume calculators
   * Kidney volume calculator (ultrasound)
   * Liver volume calculator (CT/MRI)
   * Lung nodule volume calculator (spherical formula)
   * Pleural effusion
     * Pleural effusion volume calculator (CT)
     * Pleural effusion calculator (ultrasound)
   * Prostate volume and PSA density calculator
   * Spleen volume
     * Spleen volume calculator (CT/MRI)
     * Spleen volume calculator (US)
   * Thyroid volume calculator
   * Urinary bladder volume calculator (ultrasound)
 * Home
 * News
 * About
 * Contact
 * Privacy policy and terms of use




UPDATE ON RECENT DEVELOPMENTS

2023-02-25 by radcalculators.org

After a short hiatus the site is now fully functional again. There were some
minor changes (none user-facing), which are not related to the functionalities
or informations provided. The disclaimers and terms of use have been also
updated, and therefore please read them again. I am grateful for all the users
who have reached out … Read more


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Categories News


UPDATES ON RECENT DEVELOPMENTS AND NEW FEATURES

2023-02-252022-03-16 by radcalculators.org

Quite some time has passed since the last update so a new post was really due.
The site layout went under further substantial redesign in the meantime, and
several new functionalities have been added. A quick summary of the new features
fielded since the last post: You have most certainly noticed that advertisements
have appeared … Read more


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Categories News


RECIST 1.1, QUANTITATIVE CROHN’S DISEASE MRI AND MORE

2023-02-252021-11-13 by radcalculators.org

Several new functionalities have become available since my last update. Also one
of the most popular calculators (adrenal washout) has been slightly redesigned
for a hopefully more streamlined user experience. As you can notice the menu
system has underwent a considerable reorganization recently. This was a must
since with the growing number of tools the … Read more


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Categories News


RECENT UPDATES: COVID-19 CTSI, K-TIRADS, LUNG-RADS, AND MORE

2023-02-252021-10-07 by radcalculators.org

From now in these “news” articles will become semi-regular as new features will
be launched individually after they have been completed and tested, instead of
at regular intervals. Lets take a look the new functionalities that I have made
available since the last post:


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Categories News


NEW FUNCTIONALITIES: CAROTID STENOSIS CALCULATOR FOR ULTRASOUND, AND INCIDENTAL
LUNG NODULE RECOMMENDATIONS CALCULATOR FOR CT

2023-02-252021-09-06 by radcalculators.org

Carotid ultrasound is a technically exam dreaded by even many otherwise
experienced examiners. A key reason is the rigorous attention to details and
technical parameters that need to be followed in order to get reliable results.
Small changes in angle of insonation, or poor positioning of the sampling gate
can lead to unreliable measurements. These … Read more


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 * Facebook
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Categories News


TODAY’S UPDATES – CALCULATORS FOR VOLUME/DIAMETER-BASED VOLUME DOUBLING TIME
(VDT) FOR LUNG NODULES

2023-02-252021-08-30 by radcalculators.org

Even today most lung nodules detected on CT are managed and followed up based on
diameters measured manually in the standard imaging planes. It has been long
known however that this approach has many shortcomings and pitfalls. Volumetry
and comparisons based on nodule growth are less prone to be influenced by nodule
geometry or inaccuriacies … Read more


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Categories News


NEW FEATURES: CALCULATE THE ORIGINAL AND MODIFIED CT SEVERITY INDICES FOR ACUTE
PANCREATITIS

2023-02-252021-08-24 by radcalculators.org

If you report acute CT studies done to assess acute pancreatitis quantifying the
CT severity index (CTSI) is more or less a must. It is relatively easy to assess
key features which contribute to these scores, and while doing so it also aids
you as a checklist and a safeguard, decreasing your chance of missing … Read
more


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Categories News


NEW: CALCULATE THE ORIGINAL AND MODIFIED VAN ASSCHE INDICES

2023-02-252021-08-19 by radcalculators.org

Today I have added two new functionalities, the original and modified Van Assche
indices, with those in mind who routinely report baseline and follow-up MRI
exams in patients with perianal Crohn disease. Both scoring systems have their
merits, and there are still several questions regarding their use and predictive
value. Further informations and links to … Read more


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Categories News


WELCOME TO RADIOLOGY CALCULATORS

2023-02-252021-08-15 by radcalculators.org

I have created radiology calculators as an educational tool. Quantitative data
and the use of reporting and risk stratification systems have a steadily
increasing importance in the daily work of medical imaging professionals. Right
now at launch we have several calculators that facilitate measurements and
comparisons of various formulas approaching the same problem (e.g. pleural …
Read more


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 * Facebook
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Categories News
Search

 * Abdominal imaging
   * Acute pancreatitis
     * CT severity index (CTSI) calculator for acute pancreatitis (modified)
     * CT severity index (CTSI) calculator for acute pancreatitis (original)
   * Adrenal washout calculator (CT)
   * Liver steatosis
     * Liver steatosis grading (ultrasound)
     * Liver steatosis calculator (CT)
     * Liver steatosis calculator (MRI)
   * Inflammatory bowel disease
     * Clermont score calculator of ileocolonic Crohn’s disease activity (MRI)
     * Limberg score calculator (inflammatory bowel disease severity) –
       ultrasound
     * Segmental Magnetic Resonance Index of Activity (MaRIA) score calculator
       of ileocolonic Crohn’s disease activity (MRI)
     * Simplified Magnetic Resonance Index of Activity (MARIAs) calculator for
       Crohn’s Disease
     * Global MaRIA index calculator of ileocolonic Crohn’s disease activity
     * Modifed Van Assche index calculator for perianal Crohn disease activity
       (MRI)
     * Van Assche index calculator for perianal Crohn disease activity (MRI)
     
   * Organ volume calculators
     * Kidney volume calculator (ultrasound)
     * Liver volume calculator (CT/MRI)
     * Prostate volume and PSA density calculator
     * Spleen volume calculator (CT/MRI)
     * Spleen volume calculator (US)
     * Urinary bladder volume calculator (ultrasound)
 * Chest imaging
   * COVID-19 CT severity index calculator
   * 
     Fleischner Society guidelines
     * Fleischner Society pulmonary nodule recommendation calculator
       (diameter-based, 2017 version)
     * Fleischner Society pulmonary nodule recommendation calculator
       (volume-based, 2017 version)
   * Volume doubling time
     * Volume doubling time (VDT) calculator for pulmonary nodules
       (volume-based)
     * Volume doubling time (VDT) calculator for pulmonary nodules
       (diameter-based)
     
   * Lung nodule volume calculator (spherical formula)
   * Lung-RADS®
     * Lung-RADS® calculator for pulmonary nodules on CT (diameter-based)
     * Lung-RADS® calculator for pulmonary nodules on CT (volume-based)
 * Neuroradiology and H&N imaging
   * Carotid stenosis
     * Carotid artery stenosis (NASCET and ECST) calculator
     * Society of Radiologists in Ultrasound (SRU) consensus criteria calculator
       for assessing carotid stenosis on ultrasound
     * Sonographic NASCET index
     * ASUM guideline calculator for carotid artery stenosis on ultrasound
   * Chronic rhinosinusitis
     * Lund-Mackay score calculator for chronic rhinosinusitis
     * Modified Lund-Mackay (Zinreich) score calculator for chronic
       rhinosinusitis
     
   * Dementia imaging
     * Global cortical atrophy (Pasquier) scale calculator
     * Medial temporal atrophy score (Scheltens’ scale) calculator
   * Magnetic resonance parkinsonism index (MRPI and MRPI 2.0)
   * Rotterdam score of traumatic brain injury (CT)
   * Spetzler-Martin grade calculator or intracranial AV malformations
   * Stroke CT calculator (ASPECTS, CTA-SI-ASPECTS, pc-ASPECTS, CTA collateral
     scores)
   * Zurich pituitary score calculator for pituitary adenomas (CT/MRI)
 * Oncologic imaging
   * Choi response criteria calculator
   * PI-RADS® calculator
   * RECIST 1.1 calculator
 * Thyroid ultrasound
   * ACR-TI-RADS™ calculator for thyroid ultrasound
   * EU-TIRADS calculator for thyroid ultrasound
   * K-TIRADS calculator for thyroid ultrasound
   * McGill thyroid nodule score calculator
   * Thyroid volume calculator
   
 * Volume calculators
   * Kidney volume calculator (ultrasound)
   * Liver volume calculator (CT/MRI)
   * Lung nodule volume calculator (spherical formula)
   * Pleural effusion
     * Pleural effusion volume calculator (CT)
     * Pleural effusion calculator (ultrasound)
   * Prostate volume and PSA density calculator
   * Spleen volume
     * Spleen volume calculator (CT/MRI)
     * Spleen volume calculator (US)
   * Thyroid volume calculator
   * Urinary bladder volume calculator (ultrasound)
 * Home
 * News
 * About
 * Contact
 * Privacy policy and terms of use

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