Michael James Callahan, M.D.
Concepts are derived automatically from a person's publications.
Concepts are listed by decreasing relevance which is based on many factors, including how many publications the person wrote about that topic, how long ago those publications were written, and how many publications other people have written on that same topic.
| Name | Number of Publications
|
Most Recent Publication
|
Publications by All Authors
|
Concept Score
|
Why?
|
|---|
| Contrast Media | 15 | 2022 | 5329 | 1.760 |
Why?
|
| Radiation Dosage | 18 | 2023 | 1944 | 1.720 |
Why?
|
| Radiation, Ionizing | 4 | 2022 | 249 | 1.610 |
Why?
|
| Pediatrics | 15 | 2021 | 3606 | 1.430 |
Why?
|
| Tomography, X-Ray Computed | 38 | 2023 | 20659 | 1.380 |
Why?
|
| Appendicitis | 12 | 2020 | 679 | 1.290 |
Why?
|
| Ultrasonography | 21 | 2021 | 5993 | 1.160 |
Why?
|
| Radiation Protection | 9 | 2015 | 424 | 1.060 |
Why?
|
| Anesthesia | 4 | 2021 | 1590 | 1.000 |
Why?
|
| Gadolinium | 2 | 2019 | 965 | 0.900 |
Why?
|
| Radiology | 8 | 2022 | 2090 | 0.820 |
Why?
|
| Intussusception | 2 | 2021 | 114 | 0.800 |
Why?
|
| Child | 67 | 2022 | 80564 | 0.760 |
Why?
|
| Image Enhancement | 6 | 2021 | 2858 | 0.740 |
Why?
|
| Radiation Injuries | 4 | 2012 | 1181 | 0.730 |
Why?
|
| Gastrointestinal Diseases | 3 | 2021 | 1203 | 0.710 |
Why?
|
| Digestive System Abnormalities | 1 | 2020 | 49 | 0.680 |
Why?
|
| Iodine | 1 | 2022 | 288 | 0.660 |
Why?
|
| Ileal Diseases | 1 | 2020 | 70 | 0.660 |
Why?
|
| Splenic Diseases | 1 | 2020 | 91 | 0.650 |
Why?
|
| Enema | 1 | 2020 | 140 | 0.650 |
Why?
|
| Stomach Diseases | 1 | 2020 | 134 | 0.620 |
Why?
|
| Esophageal Atresia | 1 | 2021 | 225 | 0.620 |
Why?
|
| Musculoskeletal Diseases | 3 | 2013 | 598 | 0.610 |
Why?
|
| Phantoms, Imaging | 4 | 2023 | 2475 | 0.610 |
Why?
|
| Child, Preschool | 34 | 2022 | 42500 | 0.610 |
Why?
|
| Hernia | 2 | 2015 | 67 | 0.600 |
Why?
|
| Diagnostic Imaging | 8 | 2022 | 3529 | 0.590 |
Why?
|
| Extremities | 2 | 2013 | 869 | 0.570 |
Why?
|
| Pancreatitis | 2 | 2021 | 1087 | 0.560 |
Why?
|
| Infant | 26 | 2022 | 36386 | 0.560 |
Why?
|
| Radiographic Image Enhancement | 4 | 2016 | 872 | 0.540 |
Why?
|
| Magnetic Resonance Imaging | 14 | 2021 | 36532 | 0.530 |
Why?
|
| Congenital Abnormalities | 1 | 2021 | 704 | 0.530 |
Why?
|
| Biliary Tract Diseases | 1 | 2017 | 160 | 0.510 |
Why?
|
| Ananas | 1 | 2014 | 1 | 0.460 |
Why?
|
| Digestive System Diseases | 1 | 2016 | 151 | 0.460 |
Why?
|
| Urography | 2 | 2009 | 316 | 0.450 |
Why?
|
| Infant, Newborn | 17 | 2022 | 26346 | 0.450 |
Why?
|
| Patella | 1 | 2015 | 310 | 0.440 |
Why?
|
| Burnout, Professional | 2 | 2020 | 711 | 0.440 |
Why?
|
| Gadolinium DTPA | 1 | 2017 | 823 | 0.430 |
Why?
|
| Cholangiopancreatography, Magnetic Resonance | 1 | 2014 | 101 | 0.430 |
Why?
|
| Baths | 1 | 2013 | 52 | 0.410 |
Why?
|
| Image Processing, Computer-Assisted | 8 | 2018 | 8923 | 0.410 |
Why?
|
| Diffusion Magnetic Resonance Imaging | 8 | 2017 | 2798 | 0.400 |
Why?
|
| Musculoskeletal Abnormalities | 1 | 2013 | 101 | 0.390 |
Why?
|
| Joint Diseases | 1 | 2015 | 459 | 0.380 |
Why?
|
| Abdomen | 6 | 2022 | 1134 | 0.380 |
Why?
|
| Algorithms | 11 | 2018 | 14071 | 0.350 |
Why?
|
| Appendectomy | 5 | 2020 | 444 | 0.340 |
Why?
|
| Drug Hypersensitivity | 1 | 2019 | 902 | 0.340 |
Why?
|
| Connective Tissue Diseases | 1 | 2013 | 284 | 0.330 |
Why?
|
| Gastrointestinal Tract | 1 | 2016 | 834 | 0.330 |
Why?
|
| Hepatocytes | 1 | 2017 | 1247 | 0.330 |
Why?
|
| Pancreas | 4 | 2021 | 1700 | 0.330 |
Why?
|
| Neuroblastoma | 1 | 2017 | 1263 | 0.320 |
Why?
|
| Risk Assessment | 7 | 2021 | 24282 | 0.320 |
Why?
|
| Triiodobenzoic Acids | 1 | 2009 | 124 | 0.310 |
Why?
|
| Humans | 89 | 2023 | 765968 | 0.310 |
Why?
|
| Radiographic Image Interpretation, Computer-Assisted | 2 | 2015 | 1224 | 0.300 |
Why?
|
| Beverages | 1 | 2014 | 819 | 0.300 |
Why?
|
| Liver Diseases | 1 | 2017 | 1303 | 0.300 |
Why?
|
| Injections, Intravenous | 3 | 2019 | 1377 | 0.300 |
Why?
|
| Kidney Diseases | 1 | 2019 | 2098 | 0.300 |
Why?
|
| Lower Extremity | 2 | 2013 | 1226 | 0.290 |
Why?
|
| Neoplasms, Radiation-Induced | 1 | 2012 | 540 | 0.290 |
Why?
|
| Pancreatic Diseases | 2 | 2007 | 353 | 0.290 |
Why?
|
| Practice Guidelines as Topic | 5 | 2012 | 7425 | 0.280 |
Why?
|
| Motion | 5 | 2021 | 781 | 0.280 |
Why?
|
| Hospitals, Pediatric | 3 | 2017 | 1846 | 0.280 |
Why?
|
| Liver | 4 | 2019 | 7562 | 0.280 |
Why?
|
| Knee Joint | 1 | 2015 | 1656 | 0.280 |
Why?
|
| Radiography, Abdominal | 3 | 2017 | 544 | 0.250 |
Why?
|
| Adolescent | 26 | 2023 | 88835 | 0.240 |
Why?
|
| Intestinal Perforation | 1 | 2007 | 253 | 0.240 |
Why?
|
| Life Expectancy | 1 | 2012 | 1247 | 0.240 |
Why?
|
| Fluoroscopy | 3 | 2020 | 947 | 0.240 |
Why?
|
| Multiple Trauma | 1 | 2007 | 369 | 0.230 |
Why?
|
| Magnetics | 1 | 2007 | 585 | 0.230 |
Why?
|
| Pandemics | 3 | 2021 | 8703 | 0.220 |
Why?
|
| Soft Tissue Neoplasms | 1 | 2013 | 1165 | 0.220 |
Why?
|
| Adipose Tissue | 1 | 2015 | 3312 | 0.220 |
Why?
|
| Diagnosis, Differential | 8 | 2020 | 12976 | 0.220 |
Why?
|
| Carcinoma, Small Cell | 1 | 2005 | 420 | 0.210 |
Why?
|
| Decision Making | 1 | 2017 | 3965 | 0.210 |
Why?
|
| Foreign Bodies | 1 | 2007 | 402 | 0.210 |
Why?
|
| Minors | 1 | 2023 | 59 | 0.210 |
Why?
|
| Quality Improvement | 2 | 2015 | 3853 | 0.200 |
Why?
|
| Esophageal Diseases | 1 | 2003 | 166 | 0.200 |
Why?
|
| Coronavirus Infections | 1 | 2020 | 3100 | 0.200 |
Why?
|
| Pneumonia, Viral | 1 | 2020 | 3223 | 0.200 |
Why?
|
| Choledochal Cyst | 1 | 2022 | 25 | 0.190 |
Why?
|
| Models, Statistical | 3 | 2015 | 5089 | 0.190 |
Why?
|
| Traction | 1 | 2021 | 112 | 0.190 |
Why?
|
| Urban Population | 1 | 2009 | 2040 | 0.180 |
Why?
|
| Radiography | 3 | 2022 | 6919 | 0.180 |
Why?
|
| Diagnostic Errors | 4 | 2014 | 1275 | 0.180 |
Why?
|
| Kidney Tubules, Collecting | 1 | 2001 | 163 | 0.170 |
Why?
|
| Male | 36 | 2021 | 363698 | 0.170 |
Why?
|
| Crohn Disease | 5 | 2018 | 2283 | 0.170 |
Why?
|
| Gallbladder | 1 | 2022 | 308 | 0.170 |
Why?
|
| Pyloric Stenosis | 1 | 1999 | 28 | 0.170 |
Why?
|
| Retrospective Studies | 18 | 2023 | 81514 | 0.170 |
Why?
|
| Pyloric Antrum | 1 | 1999 | 66 | 0.160 |
Why?
|
| Gastric Outlet Obstruction | 1 | 1999 | 55 | 0.160 |
Why?
|
| Air | 1 | 2020 | 181 | 0.160 |
Why?
|
| Expert Testimony | 1 | 2021 | 266 | 0.160 |
Why?
|
| Nephrogenic Fibrosing Dermopathy | 1 | 2019 | 42 | 0.160 |
Why?
|
| Female | 40 | 2023 | 396112 | 0.160 |
Why?
|
| Splenectomy | 1 | 2020 | 390 | 0.150 |
Why?
|
| Models, Biological | 1 | 2015 | 9443 | 0.150 |
Why?
|
| Prostaglandins | 1 | 1999 | 396 | 0.150 |
Why?
|
| Catheterization, Peripheral | 1 | 2022 | 349 | 0.150 |
Why?
|
| Premedication | 1 | 2019 | 244 | 0.150 |
Why?
|
| Anastomosis, Surgical | 1 | 2021 | 990 | 0.150 |
Why?
|
| Artifacts | 3 | 2021 | 1893 | 0.150 |
Why?
|
| Cerebral Palsy | 1 | 2022 | 481 | 0.140 |
Why?
|
| Shaken Baby Syndrome | 1 | 2017 | 24 | 0.140 |
Why?
|
| Catheterization, Central Venous | 1 | 2022 | 539 | 0.140 |
Why?
|
| Stomach | 1 | 2021 | 699 | 0.140 |
Why?
|
| Critical Pathways | 1 | 2020 | 474 | 0.130 |
Why?
|
| Imaging, Three-Dimensional | 3 | 2021 | 4034 | 0.130 |
Why?
|
| Brain Neoplasms | 1 | 2017 | 9071 | 0.130 |
Why?
|
| Radiometry | 2 | 2022 | 804 | 0.130 |
Why?
|
| Thyroid Gland | 1 | 2022 | 1180 | 0.120 |
Why?
|
| Urolithiasis | 1 | 2016 | 123 | 0.120 |
Why?
|
| Normal Distribution | 1 | 2015 | 267 | 0.110 |
Why?
|
| Sensitivity and Specificity | 8 | 2016 | 14652 | 0.110 |
Why?
|
| Acute Disease | 2 | 2021 | 7232 | 0.110 |
Why?
|
| Reproducibility of Results | 11 | 2018 | 20124 | 0.110 |
Why?
|
| Body Water | 1 | 2015 | 338 | 0.110 |
Why?
|
| Societies, Medical | 4 | 2017 | 3956 | 0.100 |
Why?
|
| Clinical Competence | 2 | 2020 | 4863 | 0.100 |
Why?
|
| Young Adult | 8 | 2020 | 59889 | 0.100 |
Why?
|
| Infection Control | 1 | 2020 | 983 | 0.100 |
Why?
|
| Communication | 3 | 2017 | 3916 | 0.100 |
Why?
|
| Radiography, Interventional | 1 | 2020 | 1129 | 0.100 |
Why?
|
| Intestine, Small | 1 | 2018 | 1214 | 0.100 |
Why?
|
| Spleen | 2 | 2016 | 2296 | 0.100 |
Why?
|
| Diffusion | 4 | 2015 | 808 | 0.090 |
Why?
|
| Radiography, Thoracic | 1 | 2017 | 1315 | 0.090 |
Why?
|
| Educational Measurement | 1 | 2017 | 1260 | 0.080 |
Why?
|
| Truth Disclosure | 1 | 2014 | 433 | 0.080 |
Why?
|
| Movement | 1 | 2016 | 1462 | 0.080 |
Why?
|
| Patient Advocacy | 1 | 2011 | 361 | 0.080 |
Why?
|
| Kidney Neoplasms | 1 | 2005 | 4274 | 0.080 |
Why?
|
| Muscular Diseases | 1 | 2013 | 550 | 0.080 |
Why?
|
| Biopsy | 1 | 2020 | 6763 | 0.080 |
Why?
|
| Rheumatic Diseases | 1 | 2015 | 622 | 0.070 |
Why?
|
| Gastric Mucosa | 2 | 2022 | 602 | 0.070 |
Why?
|
| Beckwith-Wiedemann Syndrome | 1 | 2007 | 44 | 0.070 |
Why?
|
| Health Promotion | 2 | 2011 | 2208 | 0.070 |
Why?
|
| Image Interpretation, Computer-Assisted | 3 | 2018 | 3356 | 0.070 |
Why?
|
| Lung Neoplasms | 1 | 2012 | 13451 | 0.070 |
Why?
|
| Recurrence | 1 | 2020 | 8501 | 0.070 |
Why?
|
| Anesthesiology | 1 | 2017 | 1135 | 0.070 |
Why?
|
| Interinstitutional Relations | 1 | 2008 | 234 | 0.070 |
Why?
|
| Pattern Recognition, Automated | 1 | 2013 | 978 | 0.070 |
Why?
|
| Lipomatosis | 1 | 2007 | 112 | 0.070 |
Why?
|
| Quality Assurance, Health Care | 1 | 2017 | 2172 | 0.070 |
Why?
|
| Bronchopulmonary Sequestration | 1 | 2006 | 43 | 0.070 |
Why?
|
| von Hippel-Lindau Disease | 1 | 2007 | 154 | 0.070 |
Why?
|
| Computer Simulation | 3 | 2015 | 6255 | 0.060 |
Why?
|
| Choristoma | 1 | 2007 | 206 | 0.060 |
Why?
|
| Abdomen, Acute | 1 | 2006 | 121 | 0.060 |
Why?
|
| Anxiety | 1 | 2020 | 4671 | 0.060 |
Why?
|
| Abdominal Injuries | 1 | 2008 | 363 | 0.060 |
Why?
|
| Treatment Outcome | 5 | 2020 | 65188 | 0.060 |
Why?
|
| Workload | 1 | 2010 | 851 | 0.060 |
Why?
|
| Leukocyte Count | 2 | 2020 | 1602 | 0.060 |
Why?
|
| Referral and Consultation | 1 | 2017 | 3615 | 0.050 |
Why?
|
| Cholangiopancreatography, Endoscopic Retrograde | 2 | 2022 | 520 | 0.050 |
Why?
|
| Unnecessary Procedures | 2 | 2020 | 416 | 0.050 |
Why?
|
| Adult | 9 | 2021 | 223044 | 0.050 |
Why?
|
| Monte Carlo Method | 2 | 2022 | 1238 | 0.050 |
Why?
|
| Cysts | 1 | 2007 | 684 | 0.050 |
Why?
|
| Neutrophils | 1 | 2015 | 3776 | 0.050 |
Why?
|
| Education, Medical, Graduate | 1 | 2014 | 2418 | 0.050 |
Why?
|
| Ureterocele | 1 | 2001 | 28 | 0.050 |
Why?
|
| Appendix | 1 | 2002 | 109 | 0.050 |
Why?
|
| Kidney Calices | 1 | 2001 | 26 | 0.050 |
Why?
|
| Wounds, Nonpenetrating | 1 | 2008 | 807 | 0.050 |
Why?
|
| Eating | 1 | 2007 | 1540 | 0.040 |
Why?
|
| Risk Factors | 4 | 2019 | 74840 | 0.040 |
Why?
|
| Attitude of Health Personnel | 1 | 2014 | 3925 | 0.040 |
Why?
|
| Catheters, Indwelling | 1 | 2022 | 438 | 0.040 |
Why?
|
| Hydronephrosis | 1 | 2001 | 274 | 0.040 |
Why?
|
| Pelvis | 1 | 2023 | 738 | 0.040 |
Why?
|
| Pulmonary Atresia | 1 | 1999 | 159 | 0.040 |
Why?
|
| Cystic Fibrosis | 1 | 2007 | 1287 | 0.040 |
Why?
|
| Reference Values | 2 | 2017 | 4908 | 0.040 |
Why?
|
| Hypertrophy | 1 | 1999 | 559 | 0.040 |
Why?
|
| Breast | 1 | 2006 | 1946 | 0.040 |
Why?
|
| Observer Variation | 2 | 2018 | 2615 | 0.040 |
Why?
|
| Parents | 1 | 2011 | 3592 | 0.030 |
Why?
|
| Longitudinal Studies | 1 | 2013 | 14751 | 0.030 |
Why?
|
| Predictive Value of Tests | 3 | 2020 | 15398 | 0.030 |
Why?
|
| Boston | 1 | 2009 | 9338 | 0.030 |
Why?
|
| Fetus | 1 | 2023 | 1870 | 0.030 |
Why?
|
| Toe Joint | 1 | 2015 | 19 | 0.030 |
Why?
|
| Respiration | 1 | 2021 | 1653 | 0.030 |
Why?
|
| Finger Joint | 1 | 2015 | 107 | 0.030 |
Why?
|
| Body Size | 1 | 2017 | 459 | 0.030 |
Why?
|
| Sweden | 1 | 2017 | 1381 | 0.030 |
Why?
|
| Cartilage Diseases | 1 | 2015 | 159 | 0.030 |
Why?
|
| Physicians | 1 | 2011 | 4588 | 0.030 |
Why?
|
| Probability | 1 | 2018 | 2475 | 0.030 |
Why?
|
| Delphi Technique | 1 | 2017 | 893 | 0.030 |
Why?
|
| Social Marketing | 1 | 2012 | 51 | 0.030 |
Why?
|
| Ileum | 1 | 2015 | 558 | 0.030 |
Why?
|
| Receptors, Tumor Necrosis Factor | 1 | 2015 | 591 | 0.020 |
Why?
|
| United States | 4 | 2014 | 72903 | 0.020 |
Why?
|
| Markov Chains | 1 | 2016 | 968 | 0.020 |
Why?
|
| Video Recording | 1 | 2017 | 969 | 0.020 |
Why?
|
| Models, Theoretical | 2 | 2015 | 3564 | 0.020 |
Why?
|
| Least-Squares Analysis | 1 | 2012 | 368 | 0.020 |
Why?
|
| Patient Simulation | 1 | 2014 | 301 | 0.020 |
Why?
|
| Databases, Factual | 2 | 2018 | 8067 | 0.020 |
Why?
|
| Medical Staff | 1 | 2011 | 40 | 0.020 |
Why?
|
| Wounds and Injuries | 1 | 2003 | 2511 | 0.020 |
Why?
|
| Incidence | 1 | 2009 | 21480 | 0.020 |
Why?
|
| Utilization Review | 1 | 2012 | 381 | 0.020 |
Why?
|
| Europe | 1 | 2017 | 3423 | 0.020 |
Why?
|
| Periodicals as Topic | 1 | 2021 | 1462 | 0.020 |
Why?
|
| Likelihood Functions | 1 | 2012 | 993 | 0.020 |
Why?
|
| Neoplasms | 1 | 2017 | 22340 | 0.020 |
Why?
|
| Methotrexate | 1 | 2015 | 1722 | 0.020 |
Why?
|
| Intestines | 1 | 2017 | 1906 | 0.020 |
Why?
|
| Perfusion | 1 | 2012 | 1407 | 0.020 |
Why?
|
| Extracellular Matrix | 1 | 2015 | 1727 | 0.020 |
Why?
|
| Chi-Square Distribution | 1 | 2013 | 3432 | 0.020 |
Why?
|
| North America | 1 | 2010 | 1285 | 0.020 |
Why?
|
| Massachusetts | 2 | 2012 | 8875 | 0.020 |
Why?
|
| Male Urogenital Diseases | 1 | 2006 | 48 | 0.020 |
Why?
|
| Female Urogenital Diseases | 1 | 2006 | 57 | 0.020 |
Why?
|
| Education, Medical | 1 | 2017 | 1746 | 0.020 |
Why?
|
| Antirheumatic Agents | 1 | 2015 | 1365 | 0.020 |
Why?
|
| Phlebography | 1 | 2006 | 328 | 0.020 |
Why?
|
| Software | 1 | 2018 | 4462 | 0.010 |
Why?
|
| ROC Curve | 1 | 2012 | 3620 | 0.010 |
Why?
|
| Hospitals | 1 | 2017 | 3888 | 0.010 |
Why?
|
| Physician-Patient Relations | 1 | 2017 | 3278 | 0.010 |
Why?
|
| Awareness | 1 | 2008 | 653 | 0.010 |
Why?
|
| Immunoglobulin G | 1 | 2015 | 4528 | 0.010 |
Why?
|
| Age Factors | 2 | 2012 | 18380 | 0.010 |
Why?
|
| Veins | 1 | 2006 | 764 | 0.010 |
Why?
|
| Pregnancy | 1 | 2023 | 30260 | 0.010 |
Why?
|
| Curriculum | 1 | 2014 | 3782 | 0.010 |
Why?
|
| Sex Factors | 1 | 2012 | 10603 | 0.010 |
Why?
|
| T-Lymphocytes | 1 | 2015 | 10261 | 0.010 |
Why?
|
| Registries | 1 | 2013 | 8297 | 0.010 |
Why?
|
| Emergency Service, Hospital | 1 | 2015 | 7875 | 0.010 |
Why?
|
| Internship and Residency | 1 | 2014 | 5946 | 0.010 |
Why?
|
| Cohort Studies | 1 | 2015 | 41649 | 0.010 |
Why?
|
| Prospective Studies | 1 | 2015 | 54802 | 0.010 |
Why?
|
| Follow-Up Studies | 1 | 2011 | 39193 | 0.010 |
Why?
|
| Prevalence | 1 | 2006 | 15842 | 0.000 |
Why?
|
| Pancreatic Neoplasms | 1 | 2004 | 5444 | 0.000 |
Why?
|
| Prognosis | 1 | 2006 | 29922 | 0.000 |
Why?
|